Updated 2 Nov 2026 · recomputed nightly
Is September 2027 a good month to visit Split?
Busy — the typical September day in Split is busier than 70% 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 Split's own year — not a headcount.
September 2027 is peak-season Split: warm and showery, around 27°C / 80°F with rain on about 8 days, and Busy on 25 of 30 days.
It depends. The typical September day in Split is Busy, and 27 of the 30 days in our window run Busy or Packed, so most days feel crowded. Expect around 27 °C by day, with rain on about 8 days. The crowd comes with the school holidays in Germany and the Netherlands. Cruise ships call on 29 of the 30 days, 4 at once on Friday 3 September. No week of September is meaningfully quieter — the typical day is Busy throughout; pick by day instead. For similar weather with fewer people, come in June or May. The crush is at the Peristyle and the palace lanes; the quiet is at Marjan's pine paths. The calmest day is Wednesday 8 September, the busiest Friday 3 September.
In short, worth it for the peak buzz, if you can take the crowds.
Among the 12 months we forecast for Split, September ranks 3rd for crowd pressure. Its heaviest day is Fri 3 Sep, busier than 98% of the year; its lightest is Wed 8 Sep at 59%.
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 →
Nothing extreme to plan around — rain on 8 of 30 days.
The one thing you wear all day, every day of the trip.
See walking shoes →
A folding one lives in the day bag and weighs nothing.
See umbrellas →
How busy is Split in September?
The busiest days are the 3rd, 17th, 20th and 28th, and 23 more. Away from those, most days sit Lively.
Cruise ships are in port on 29 of 30 days; the heaviest is Fri 3 Sep, 4 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 59% of the year and its heaviest at 98%, 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 1st, 8th and 27th — aim for those if your dates can flex.
Wed 01 Sep Lively busier than 64% of days here · ⚓1 · Germany school holidays
- MSC Explora 2 — guest capacity 922 09:00–19:00
Record Split on Wed 1 Sep 2027 is forecast Lively. 1 cruise ship scheduled, at least 922 guests at double occupancy; ships in port 09:00–19:00. 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/split/#d-2027-09-01 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 02 Sep Busy busier than 80% of days here · ⚓2 · Germany school holidays
- Celebrity Ascent — guest capacity 3,260 08:00–17:00
- Silver Ray — guest capacity 556 08:00–17:00
Record Split on Thu 2 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 3,816 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-02 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 03 Sep Packed busier than 98% of days here · ⚓4 · Germany school holidays
- Brilliance Of The Seas — guest capacity 2,112 08:00–17:00
- Costa Deliziosa — guest capacity 2,260 08:00–16:00
- Mein Schiff 4 — guest capacity 2,506 08:00–19:00
- Norwegian Gem — guest capacity 2,394 07:00–17:00
Record Split on Fri 3 Sep 2027 is forecast Packed. 4 cruise ships scheduled, at least 9,272 guests at double occupancy; ships in port 07:00–19:00. Why: school holidays in Germany and the Netherlands. Nearest calmer day: Thu 2 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-03 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 04 Sep Busy busier than 69% of days here · ⚓1 · Germany school holidays
- MSC Armonia — guest capacity 1,950 08:00–17:00
Record Split on Sat 4 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 1,950 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-04 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 05 Sep Busy busier than 71% of days here · ⚓1 · Germany school holidays
- Celebrity Constellation — guest capacity 2,130 07:00–16:00
Record Split on Sun 5 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 2,130 guests at double occupancy; ships in port 07:00–16:00. Why: school holidays in Germany and the Netherlands. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-05 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 06 Sep Busy busier than 75% of days here · ⚓2 · Germany school holidays
- Azura — guest capacity 3,100
- ms La Belle de lAdriatique — guest capacity 99 14:00–17:00
Record Split on Mon 6 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 3,199 guests at double occupancy. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-06 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 07 Sep Busy busier than 70% of days here · ⚓1 · Germany school holidays
- Celebrity Constellation — guest capacity 2,130 08:00–17:00
Record Split on Tue 7 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 2,130 guests at double occupancy; ships in port 08:00–17:00. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-07 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 08 Sep Lively busier than 59% of days here · Germany school holidays
Record Split on Wed 8 Sep 2027 is forecast Lively. Why: school holidays in Germany. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/split/#d-2027-09-08 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 09 Sep Busy busier than 66% of days here · ⚓2 · Germany school holidays
- Seabourn Ovation — guest capacity 600 08:00–18:00
- Viking Sea — guest capacity 930
Record Split on Thu 9 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 1,530 guests at double occupancy. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-09 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 10 Sep Busy busier than 70% of days here · ⚓1 · Germany school holidays
- Brilliance Of The Seas — guest capacity 2,112 08:00–17:00
Record Split on Fri 10 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 2,112 guests at double occupancy; ships in port 08:00–17:00. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-10 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 11 Sep Busy busier than 69% of days here · ⚓2 · Germany school holidays
- MSC Armonia — guest capacity 1,950 08:00–17:00
- Ritz Carlton Ilma — guest capacity 448 08:00–20:00
Record Split on Sat 11 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 2,398 guests at double occupancy; ships in port 08:00–20:00. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-11 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 12 Sep Busy busier than 73% of days here · ⚓2 · Germany school holidays
- Emerald Kaia — guest capacity 128
- Marella Explorer — guest capacity 1,924 08:00–19:00
Record Split on Sun 12 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 2,052 guests at double occupancy. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-12 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 13 Sep Busy busier than 67% of days here · ⚓2 · Germany school holidays
- Seven Seas Mariner — guest capacity 708 08:00–17:00
- Viking Neptune — guest capacity 928
Record Split on Mon 13 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 1,636 guests at double occupancy. Why: school holidays in Germany. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-13 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 14 Sep Busy busier than 80% of days here · ⚓1
- Norwegian Viva — guest capacity 3,215 07:00–18:00
Record Split on Tue 14 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 3,215 guests at double occupancy; ships in port 07:00–18:00. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-14 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 15 Sep Busy busier than 80% of days here · ⚓2
- Marella Discovery 2 — guest capacity 1,832 08:00–17:00
- Queen Elizabeth — guest capacity 2,081
Record Split on Wed 15 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 3,913 guests at double occupancy. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-15 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 16 Sep Busy busier than 69% of days here · ⚓1
- Queen Victoria — guest capacity 2,074
Record Split on Thu 16 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 2,074 guests at double occupancy. Nearest calmer day: Wed 8 Sep (Lively). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-16 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 17 Sep Packed busier than 98% of days here · ⚓4
- Brilliance Of The Seas — guest capacity 2,112 09:00–18:00
- Costa Deliziosa — guest capacity 2,260 08:00–16:00
- Mein Schiff 4 — guest capacity 2,506 08:00–19:00
- Norwegian Gem — guest capacity 2,394 07:00–17:00
Record Split on Fri 17 Sep 2027 is forecast Packed. 4 cruise ships scheduled, at least 9,272 guests at double occupancy; ships in port 07:00–19:00. Nearest calmer day: Thu 16 Sep (Busy). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-17 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 18 Sep Busy busier than 68% of days here · ⚓1
- MSC Armonia — guest capacity 1,950 08:00–17:00
Record Split on Sat 18 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 1,950 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-18 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 19 Sep Busy busier than 68% of days here · ⚓1
- ms Oosterdam — guest capacity 1,916 08:00–17:00
Record Split on Sun 19 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 1,916 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-19 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 20 Sep Busy busier than 82% of days here · ⚓2 · Germany public holiday
- Azura — guest capacity 3,100
- Viking Star — guest capacity 930
Record Split on Mon 20 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 4,030 guests at double occupancy. Why: Germany public holiday. 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/split/#d-2027-09-20 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 21 Sep Busy busier than 76% of days here · ⚓1
- Explorer Of The Seas — guest capacity 3,286 08:00–17:00
Record Split on Tue 21 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 3,286 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-21 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 22 Sep Busy busier than 68% of days here · ⚓1
- ms Oosterdam — guest capacity 1,916 08:00–17:00
Record Split on Wed 22 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 1,916 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-22 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 23 Sep Busy busier than 76% of days here · ⚓1
- Celebrity Ascent — guest capacity 3,260 08:00–17:00
Record Split on Thu 23 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 3,260 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-23 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Fri 24 Sep Busy busier than 74% of days here · ⚓2
- Brilliance Of The Seas — guest capacity 2,112 08:00–17:00
- Silver Spirit — guest capacity 608 08:00–18:00
Record Split on Fri 24 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 2,720 guests at double occupancy; ships in port 08:00–18:00. 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/split/#d-2027-09-24 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sat 25 Sep Busy busier than 79% of days here · ⚓2
- MSC Armonia — guest capacity 1,950 08:00–17:00
- Marella Discovery 2 — guest capacity 1,832 08:00–17:00
Record Split on Sat 25 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 3,782 guests at double occupancy; ships in port 08:00–17:00. 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/split/#d-2027-09-25 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Sun 26 Sep Busy busier than 70% of days here · ⚓1
- Celebrity Constellation — guest capacity 2,130 07:00–16:00
Record Split on Sun 26 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 2,130 guests at double occupancy; ships in port 07:00–16:00. 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/split/#d-2027-09-26 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Mon 27 Sep Lively busier than 63% of days here · ⚓1
- Azamara Onward — guest capacity 684 08:00–22:00
Record Split on Mon 27 Sep 2027 is forecast Lively. 1 cruise ship scheduled, at least 684 guests at double occupancy; ships in port 08:00–22:00. The day in full, the year at a glance, and how this day compares: https://avoid-crowds.com/split/#d-2027-09-27 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Tue 28 Sep Busy busier than 82% of days here · ⚓2 · Czechia public holiday
- Celebrity Constellation — guest capacity 2,130 08:00–17:00
- Marella Explorer — guest capacity 1,924 08:00–17:00
Record Split on Tue 28 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 4,054 guests at double occupancy; ships in port 08:00–17:00. Why: Czechia public holiday. 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/split/#d-2027-09-28 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Wed 29 Sep Busy busier than 65% of days here · ⚓2
- MSC Explora 2 — guest capacity 922 09:00–19:00
- Star Explorer — guest capacity 196 08:00–16:00
Record Split on Wed 29 Sep 2027 is forecast Busy. 2 cruise ships scheduled, at least 1,118 guests at double occupancy; ships in port 08:00–19:00. 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/split/#d-2027-09-29 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Thu 30 Sep Busy busier than 74% of days here · ⚓1
- Celebrity Eclipse — guest capacity 2,850 08:00–17:00
Record Split on Thu 30 Sep 2027 is forecast Busy. 1 cruise ship scheduled, at least 2,850 guests at double occupancy; ships in port 08:00–17:00. Nearest calmer day: Fri 1 Oct (Calm). Ship-by-ship detail for the day, the year at a glance, and what's worth booking ahead: https://avoid-crowds.com/split/#d-2027-09-30 (Avoid-Crowds, as of 2 Nov 2026; recomputed nightly.)
Which week of September is quietest in Split?
No week of September is meaningfully quieter — the typical day is Busy throughout; pick by day instead.
Can't move the dates? How to avoid the worst crowds
- The heaviest port day is Fri 3 Sep — 4 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 Split
Comfortably warm — around 27°C / 80°F, easy shirtsleeve weather, with rain on about 8 days, so keep a layer handy.
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 Split in September
Based on: Croatia's public holidays · school vacations across Czechia, Germany, the Netherlands and Poland · 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.
