Updated 4 Aug 2026 · recomputed nightly

Visiting Dublin in August 2026?

August is Dublin at its busiest: mild and wet, around 19°C / 66°F with rain on about 14 days, and Busy or Packed on all 28 days — 24 of them Packed, the other 4 Busy. (Our forecast covers 4–31 August — the rest of August is beyond the current window.)

In short, a hard sell — heavy crowds without the best of the weather.

Across the 12 months we forecast for Dublin, August is the busiest of them all. Its heaviest day is Mon 10 Aug, busier than 100% of the year; its lightest is Sun 23 Aug at 84%.

Crowds
Busy or Packed · all 28
0 calm · 0 lively
Weather
19°C / 66°F
rain ~14 days
Value
A poor trade
a hard sell — heavy crowds without the best of the weather

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 →

How busy is Dublin in August?

The busiest days are the 5th, 7th, 10th and 18th, and 24 more.

Ships call on 14 of 28 days, a typical call day carrying at least 2,004 guests between them — real, but a secondary part of the crowd here; the season moves the needle more.

Across the month the days run from 84% to 100% of the year. Daylight runs about 15 hours.

Either side of it, September is much calmer.

The lightest days are the 23rd, 25th and 26th. Still busy — but the easiest of the month — 4 days share that level, so there is room to choose.
488%HEAVY599%697%HEAVY799%887%989%HEAVY10100%1195%1287%1386%1486%1598%1685%1785%HEAVY1899%1985%2085%2185%2293%2384%2498%2584%2684%2784%2893%2999%3093%3195%
CalmLivelyBusyPacked⚓ ships in port · % = busier than this share of the year · tap any day for its full forecast
Easiest daysSun 23 · Tue 25 · Wed 26 — The lightest days are the 23rd, 25th and 26th. Still busy — but the easiest of the month — 4 days share that level, so there is room to choose.
Busiest daysWed 5 · Fri 7 · Mon 10 · Tue 18 — the heaviest of 28 busier days — check the calendar for the rest.

How does September compare? →

Locked into a busy day? Here's the play.

–9am
Own the morning.The day-trip wave lands mid-morning; the headline sights before nine are effectively yours.
10–5
Go where the day-trippers don't.Away from the headline sights it stays manageable all day. Save the marquee ones.
5pm+
Take the city back.Day-trippers leave by early evening — the same squares empty out and the light is better.

Travelling on a busy day?
Timed-entry and skip-the-line tickets turn queue time into sightseeing time — sort them before you fly.

See skip-the-line options for Dublin →

August weather in Dublin

Mild — around 19°C / 66°F, with a light jacket for the evenings, with rain on about 14 days, so keep a layer handy. The days are long too — close to 15 hours of light — so the evenings stay open for walking once the heat drops.

As an Amazon Associate, this site earns from qualifying purchases — we link categories, never specific products we haven't tested.

Is August worth it in Dublin?

Heavy crowds and only poor weather to show for it — a poor trade. For better value, come in September.

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.

Compare September →

Keep planning

← Dublin in JulyThe month before — compare the crowds.Dublin in September →The month after — compare the crowds. Dublin, the whole yearAll twelve months on one page. AlanyaPacked most days in August — see its full year.AmalfiPacked most days in August — see its full year.AmsterdamPacked most days in August — see its full year.

Built on: Ireland's public holidays · school vacations across France and Germany · the season pattern from official overnight stays · five years of weather records (2019–2023) · operator-confirmed events · 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.

Dublin · Methodology · About · forecast.json · llms.txt · CC BY 4.0