Dublin travel guide — where to stay, what to do, and where to eat in Dublin, Leinster, Ireland.
Dublin has a temperate oceanic climate (Köppen Cfb) characterised by mild temperatures year-round, high humidity, and frequent rain spread across all seasons. Summers are warm but not hot (average July high 18–20°C / 64–68°F); winters are cool but rarely freezing (average January low 3–4°C / 37–39°F). Snow is rare. The city sees approximately 730 mm (29 in) of rain per year spread across roughly 150 rain days — far less than the west of Ireland but still significantly more than continental Europe. Pack a waterproof jacket regardless of season.
Best time to visit
Best: May–June and September–October
Peak Season: July–August
Avoid: January–February (coldest, wettest, shortest days; many attractions have reduced hours)
Notes: May–June offers the longest days (up to 17 hours of daylight), relatively low rainfall, wildflower countryside for day trips, and pre-peak hotel prices. September retains mild weather with golden light and post-summer quieter streets.
Month-by-month weather
Typical conditions throughout the year.
January
3–8 °C
February
3–8 °C
March
4–10 °C
April
5–12 °C
May
7–15 °C
June
10–18 °C
July
12–20 °C
August
12–19 °C
September
10–16 °C
October
7–13 °C
November
5–10 °C
December
4–8 °C
The seasons
What to expect in each part of the year.
Spring (March–May)
Months: March, April, May
Summer (June–August)
Months: June, July, August
Autumn (September–November)
Months: September, October, November
Winter (December–February)
Months: December, January, February
Crowds & peak times
When to expect tourists and when to avoid them.
Major events & festivals
Time your visit around what matters.