Updated 3 Nov 2026 · recomputed nightly
Is September 2027 a good month to visit Mykonos?
Busy — the typical September day in Mykonos is busier than 75% of its year.
If you are coming for something that only happens in September, that is the trade. If not, January is quieter.
Calm · Lively · Busy · Packed rank a day against Mykonos's own year — not a headcount.
September is one of Mykonos's busiest months: warm and dry, around 26°C / 79°F, and Busy on 20 of 30 days.
It depends. The typical September day in Mykonos is Busy, and 26 of the 30 days in our window run Busy or Packed, so most days feel crowded. Expect around 26 °C by day, with rain on about 1 days. The crowd comes with the school holidays in Germany and the Netherlands. Cruise ships call on 29 of the 30 days, 6 at once on Saturday 18 September. Early September is the month's quietest stretch in Mykonos — the typical day at 72%, against 78% in mid September. For similar weather with fewer people, come in October or May. The crush is at Chora's lane maze; the quiet is at Delos beyond the agora. The calmest day is Saturday 25 September, the busiest Saturday 18 September.
In short, worth it for the peak buzz, if you can take the crowds.
Among the 12 months we forecast for Mykonos, September ranks 4th for crowd pressure. Its heaviest day is Sat 18 Sep, busier than 99% of the year; its lightest is Sat 25 Sep at 56%.
Preparing pays off in a month like this: timed-entry tickets and pre-booked tours turn the queue time into sightseeing time. see the options →
An easy month to pack for — rain on 1 of 30 days.
Paper keeps working when the phone is flat and the signal is gone.
See Mykonos guides →
The one thing you wear all day, every day of the trip.
See walking shoes →
How busy is Mykonos in September?
The busiest days are the 2nd, 7th, 8th and 18th, and 22 more. Away from those, most days sit Lively.
Cruise ships are in port on 29 of 30 days; the heaviest is Sat 18 Sep, 6 ships in at once. Those mornings fill the squares first — start early, or save them for indoors.
The month is not one thing: its lightest day sits at 56% of the year and its heaviest at 99%, so where you land inside it matters. All five Thursdays run Busy or Packed. Daylight runs about 12 hours.
Either side of it, August is busier still and October is far calmer.
The calmest days are the 4th, 25th and 27th — aim for those if your dates can flex.
Wed 01 Sep Lively busier than 64% of days here · ⚓1 · Germany school holidays
- Brilliance Of The Seas — guest capacity 2,112 07:00–18:00
Record Mykonos on Wed 1 Sep 2027 is forecast Lively. 1 cruise ship scheduled, at least 2,112 guests at double occupancy; ships in port 07:00–18:00. Why: school holidays in Germany and the Netherlands. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/mykonos/#d-2027-09-01 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Thu 02 Sep Packed busier than 89% of days here · ⚓3 · Germany school holidays
- Odyssey Of The Seas — guest capacity 4,198 07:00–17:00
- Scarlet Lady — guest capacity 2,770 08:00–20:00
- ms Oosterdam — guest capacity 1,916 08:00–18:00
Record Mykonos on Thu 2 Sep 2027 is forecast Packed. 3 cruise ships scheduled, at least 8,884 guests at double occupancy; ships in port 07:00–20:00. Why: school holidays in Germany and the Netherlands. Nearest calmer day: Wed 1 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-02 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Fri 03 Sep Busy busier than 68% of days here · ⚓3 · Germany school holidays
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Norwegian Sun — guest capacity 1,936 10:00–22:00
- Wind Surf — guest capacity 342 08:00–18:00
Record Mykonos on Fri 3 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 4,078 guests at double occupancy; ships in port 08:00–23:00. Why: school holidays in Germany and the Netherlands. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-03 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sat 04 Sep Lively busier than 62% of days here · ⚓1 · Germany school holidays
- MSC Explora 2 — guest capacity 922 09:00–23:00
Record Mykonos on Sat 4 Sep 2027 is forecast Lively. Why: school holidays in Germany and the Netherlands. 1 cruise ship scheduled, at least 922 guests at double occupancy; ships in port 09:00–23:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/mykonos/#d-2027-09-04 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sun 05 Sep Busy busier than 66% of days here · ⚓1 · Germany school holidays
- MSC Divina — guest capacity 3,502 14:00–23:00
Record Mykonos on Sun 5 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 3,502 guests at double occupancy; ships in port 14:00–23:00. Why: school holidays in Germany and the Netherlands. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-05 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Mon 06 Sep Busy busier than 66% of days here · ⚓2 · Germany school holidays
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Costa Pacifica — guest capacity 3,012 15:00–23:00
Record Mykonos on Mon 6 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 4,812 guests at double occupancy; ships in port 15:00–23:00. Why: school holidays in Germany. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-06 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Tue 07 Sep Packed busier than 94% of days here · ⚓4 · Germany school holidays
- Brilliance Of The Seas — guest capacity 2,112 07:00–18:00
- Carnival Sunshine — guest capacity 3,002 07:00–17:00
- Costa Serena — guest capacity 3,014 12:00–22:00
- MSC Lirica — guest capacity 1,984 10:00–01:00
Record Mykonos on Tue 7 Sep 2027 is forecast Packed. 4 cruise ships scheduled, at least 10,112 guests at double occupancy; ships in port 07:00–22:00. Why: school holidays in Germany. Nearest calmer day: Mon 6 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-07 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Wed 08 Sep Packed busier than 89% of days here · ⚓3 · Germany school holidays
- Celebrity Infinity — guest capacity 2,170 07:00–18:00
- Costa Deliziosa — guest capacity 2,260 08:00–18:00
- Norwegian Viva — guest capacity 3,215 07:00–22:00
Record Mykonos on Wed 8 Sep 2027 is forecast Packed. 3 cruise ships scheduled, at least 7,645 guests at double occupancy; ships in port 07:00–22:00. Why: school holidays in Germany. Nearest calmer day: Thu 9 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-08 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Thu 09 Sep Busy busier than 76% of days here · ⚓3 · Germany school holidays
- Celestyal Journey — guest capacity 1,260 08:00–02:00
- Emerald Raiya — guest capacity 128
- Odyssey Of The Seas — guest capacity 4,198 07:00–17:00
Record Mykonos on Thu 9 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 5,586 guests at double occupancy. Why: school holidays in Germany. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-09 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Fri 10 Sep Busy busier than 81% of days here · ⚓4 · Germany school holidays
- Celebrity Ascent — guest capacity 3,260 07:00–18:00
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Norwegian Gem — guest capacity 2,394 10:00–22:00
- Wind Surf — guest capacity 342 08:00–18:00
Record Mykonos on Fri 10 Sep 2027 is forecast Busy. 4 cruise ships scheduled, at least 7,796 guests at double occupancy; ships in port 07:00–23:00. Why: school holidays in Germany. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-10 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sat 11 Sep Packed busier than 85% of days here · ⚓3 · Germany school holidays
- Azura — guest capacity 3,100
- Enchanted Princess — guest capacity 3,660 07:00–21:00
- Silver Nova — guest capacity 728 08:00–19:00
Record Mykonos on Sat 11 Sep 2027 is forecast Packed. 3 cruise ships scheduled, at least 7,488 guests at double occupancy. Why: school holidays in Germany. Nearest calmer day: Fri 10 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-11 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sun 12 Sep Busy busier than 72% of days here · ⚓2 · Germany school holidays
- MSC Divina — guest capacity 3,502 14:00–23:00
- Rhapsody Of The Seas — guest capacity 1,998 07:00–18:00
Record Mykonos on Sun 12 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 5,500 guests at double occupancy; ships in port 07:00–23:00. Why: school holidays in Germany. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-12 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Mon 13 Sep Busy busier than 79% of days here · ⚓4 · Germany school holidays
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Costa Pacifica — guest capacity 3,012 15:00–23:00
- Le Laperouse — guest capacity 184 14:00–23:00
- MSC Orchestra — guest capacity 2,550 08:00–22:00
Record Mykonos on Mon 13 Sep 2027 is forecast Busy. 4 cruise ships scheduled, at least 7,546 guests at double occupancy; ships in port 08:00–23:00. Why: school holidays in Germany. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-13 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Tue 14 Sep Busy busier than 67% of days here · ⚓3
- MSC Lirica — guest capacity 1,984 10:00–01:00
- SeaDream II — guest capacity 112
- Star Legend — guest capacity 312 08:00–17:00
Record Mykonos on Tue 14 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 2,408 guests at double occupancy. Nearest calmer day: Sat 4 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-14 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Wed 15 Sep Busy busier than 74% of days here · ⚓2
- Celebrity Infinity — guest capacity 2,170 07:00–18:00
- Scarlet Lady — guest capacity 2,770 08:00–20:00
Record Mykonos on Wed 15 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 4,940 guests at double occupancy; ships in port 07:00–20:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-15 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Thu 16 Sep Busy busier than 76% of days here · ⚓3
- Celestyal Journey — guest capacity 1,260 08:00–02:00
- Emerald Raiya — guest capacity 128
- Odyssey Of The Seas — guest capacity 4,198 07:00–17:00
Record Mykonos on Thu 16 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 5,586 guests at double occupancy. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-16 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Fri 17 Sep Busy busier than 71% of days here · ⚓3
- Celebrity Xcel — guest capacity 3,260 07:00–18:00
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Wind Surf — guest capacity 342 08:00–18:00
Record Mykonos on Fri 17 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 5,402 guests at double occupancy; ships in port 07:00–23:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-17 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sat 18 Sep Packed busier than 99% of days here · ⚓6
- Celebrity Eclipse — guest capacity 2,850 07:00–18:00
- Enchanted Princess — guest capacity 3,660 07:00–21:00
- Rhapsody Of The Seas — guest capacity 1,998 07:00–18:00
- Silver Nova — guest capacity 728 08:00–19:00
- Star Legend — guest capacity 312 09:00–21:00
- Sun Princess — guest capacity 4,300 07:00–21:00
Record Mykonos on Sat 18 Sep 2027 is forecast Packed. 6 cruise ships scheduled, at least 13,848 guests at double occupancy; ships in port 07:00–21:00. Nearest calmer day: Fri 17 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-18 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sun 19 Sep Busy busier than 84% of days here · ⚓4
- Celebrity Xcel — guest capacity 3,260 07:00–18:00
- MSC Divina — guest capacity 3,502 14:00–23:00
- MSC Explora 2 — guest capacity 922 09:00–21:00
- Seven Seas Mariner — guest capacity 708 08:00–17:00
Record Mykonos on Sun 19 Sep 2027 is forecast Busy. 4 cruise ships scheduled, at least 8,392 guests at double occupancy; ships in port 07:00–23:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-19 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Mon 20 Sep Busy busier than 80% of days here · ⚓3 · Germany public holiday
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Costa Pacifica — guest capacity 3,012 15:00–23:00
- MSC Orchestra — guest capacity 2,550 08:00–22:00
Record Mykonos on Mon 20 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 7,362 guests at double occupancy; ships in port 08:00–23:00. Why: Germany public holiday. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-20 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Tue 21 Sep Busy busier than 78% of days here · ⚓3
- Brilliance Of The Seas — guest capacity 2,112 07:00–18:00
- MSC Lirica — guest capacity 1,984 10:00–01:00
- Marella Explorer — guest capacity 1,924 09:00–18:00
Record Mykonos on Tue 21 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 6,020 guests at double occupancy; ships in port 07:00–18:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-21 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Wed 22 Sep Busy busier than 74% of days here · ⚓3
- Celebrity Eclipse — guest capacity 2,850 07:00–18:00
- Costa Deliziosa — guest capacity 2,260 08:00–18:00
- Seven Seas Prestige — guest capacity 850 08:00–17:00
Record Mykonos on Wed 22 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 5,960 guests at double occupancy; ships in port 07:00–18:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-22 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Thu 23 Sep Busy busier than 80% of days here · ⚓3
- Celestyal Journey — guest capacity 1,260 08:00–02:00
- Odyssey Of The Seas — guest capacity 4,198 07:00–17:00
- Seven Seas Mariner — guest capacity 708 08:00–17:00
Record Mykonos on Thu 23 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 6,166 guests at double occupancy; ships in port 07:00–17:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-23 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Fri 24 Sep Packed busier than 85% of days here · ⚓6
- Celebrity Infinity — guest capacity 2,170 07:00–18:00
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Norwegian Gem — guest capacity 2,394 10:00–22:00
- Scarlet Lady — guest capacity 2,770 09:00–14:00
- Seven Seas Prestige — guest capacity 850 08:00–18:00
- Wind Surf — guest capacity 342 08:00–18:00
Record Mykonos on Fri 24 Sep 2027 is forecast Packed. 6 cruise ships scheduled, at least 10,326 guests at double occupancy; ships in port 07:00–23:00. Nearest calmer day: Thu 23 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-24 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sat 25 Sep Lively busier than 56% of days here
Record Mykonos on Sat 25 Sep 2027 is forecast Lively. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/mykonos/#d-2027-09-25 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Sun 26 Sep Busy busier than 73% of days here · ⚓3
- MSC Divina — guest capacity 3,502 14:00–23:00
- World Traveller — guest capacity 196 14:00–22:00
- ms Oosterdam — guest capacity 1,916 07:00–18:00
Record Mykonos on Sun 26 Sep 2027 is forecast Busy. 3 cruise ships scheduled, at least 5,614 guests at double occupancy; ships in port 07:00–23:00. Nearest calmer day: Sat 25 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-26 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Mon 27 Sep Lively busier than 63% of days here · ⚓3
- Celestyal Discovery — guest capacity 1,800 18:00–23:00
- Emerald Azzurra — guest capacity 100
- Silver Nova — guest capacity 728 08:00–19:00
Record Mykonos on Mon 27 Sep 2027 is forecast Lively. 3 cruise ships scheduled, at least 2,628 guests at double occupancy. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/mykonos/#d-2027-09-27 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Tue 28 Sep Busy busier than 72% of days here · ⚓2
- Brilliance Of The Seas — guest capacity 2,112 07:00–18:00
- MSC Lirica — guest capacity 1,984 10:00–01:00
Record Mykonos on Tue 28 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 4,096 guests at double occupancy; ships in port 07:00–18:00. Nearest calmer day: Mon 27 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-28 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Wed 29 Sep Busy busier than 68% of days here · ⚓1
- Costa Serena — guest capacity 3,014 08:00–20:00
Record Mykonos on Wed 29 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 3,014 guests at double occupancy; ships in port 08:00–20:00. Nearest calmer day: Mon 27 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-29 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Thu 30 Sep Busy busier than 76% of days here · ⚓4
- Celestyal Journey — guest capacity 1,260 08:00–02:00
- Emerald Azzurra — guest capacity 100
- Emerald Raiya — guest capacity 128
- Odyssey Of The Seas — guest capacity 4,198 07:00–17:00
Record Mykonos on Thu 30 Sep 2027 is forecast Busy. 4 cruise ships scheduled, at least 5,686 guests at double occupancy. Nearest calmer day: Fri 1 Oct (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/mykonos/#d-2027-09-30 (Avoid-Crowds, as of 3 Nov 2026; recomputed nightly.)
Which week of September is quietest in Mykonos?
Early September is the month's quietest stretch in Mykonos — the typical day at 72%, against 78% in mid September.
Can't move the dates? How to avoid the worst crowds
- The heaviest port day is Sat 18 Sep — 6 ships in at once. See the marquee sights on a lighter day, or be there for opening time.
- On the busy days, the walk-up queues for the big sights are the biggest time-sink — a timed-entry ticket skips them, which is where a busy month is won or lost.
Travelling on a busy day?
Timed-entry and skip-the-line tickets turn queue time into sightseeing time — sort them before you fly.
September weather in Mykonos
Comfortably warm — around 26°C / 79°F, easy shirtsleeve weather, with rain on only about 1 days.
Book beds and the big-ticket sights well ahead, and start your days by eight — in a month this full, the early hours are the only uncrowded ones.
More about Mykonos in September
Based on: Greece's public holidays · school vacations across France, Germany and the Netherlands · the season pattern from official overnight stays · five years of weather records (2019–2023) · confirmed event dates · the published cruise schedule
Every figure is recomputed nightly from real cruise schedules, public and school holidays, and long-run climate normals. Gaps are shown, not filled.
