The east coast is the driest part of the island, and Dublin’s museums and pubs make it a genuine year-round destination. What changes is the price: hotel rates peak in summer, at weekends and whenever a big concert or match is on.
Season by season
Spring (March–May)
Cool and brightening. St Patrick’s Festival in mid-March fills the city; April and May bring long evenings, parks in bloom and manageable crowds.
Summer (June–August)
Light until after 10 pm, outdoor events and the busiest season at Trinity, Kilmainham and the Storehouse. Book the timed sights weeks ahead.
Autumn (September–October)
Often settled in September, with the theatre and fringe festivals. Bram Stoker events around Halloween recall the city’s gothic side.
Winter (November–February)
Short days, lower prices outside the Christmas and New Year period, festive lights and markets in December. TradFest warms up late January.
Month by month
| Month | Avg high / low | Wet days | Daylight | Our verdict |
|---|---|---|---|---|
| January | 8° / 2°C | ≈13 | ≈8 h | Quiet & cheap |
| February | 8° / 2°C | ≈10 | ≈9.5 h | Quiet & cheap |
| March | 10° / 3°C | ≈11 | ≈12 h | Good |
| April | 13° / 5°C | ≈11 | ≈14 h | Good |
| May | 15° / 7°C | ≈11 | ≈16 h | Best |
| June | 18° / 10°C | ≈10 | ≈17 h | Best |
| July | 20° / 12°C | ≈12 | ≈16.5 h | Peak season |
| August | 19° / 12°C | ≈12 | ≈14.5 h | Peak season |
| September | 17° / 10°C | ≈11 | ≈12.5 h | Best |
| October | 14° / 7°C | ≈12 | ≈10.5 h | Good |
| November | 10° / 4°C | ≈12 | ≈8.5 h | Quiet & cheap |
| December | 8° / 3°C | ≈13 | ≈7.5 h | Good |
Approximate long-term averages, rounded; daylight is the approximate time between sunrise and sunset mid-month. Irish weather changes quickly — pack for showers in any month.
Festivals & events
- Late January TradFest — traditional and folk music in Temple Bar and historic venues.
- Around 17 March St Patrick’s Festival and parade. Book accommodation months ahead.
- 16 June Bloomsday — readings, walks and Edwardian dress in honour of Joyce’s Ulysses.
- June Pride parade and festival.
- Summer Gaelic football and hurling championship matches at Croke Park, ending with the All-Ireland finals.
- September–October Dublin Fringe Festival and Dublin Theatre Festival.
- Late October Bram Stoker Festival; the Dublin Marathon on the bank holiday weekend.
- December Christmas lights and markets; a New Year festival on the 31st.
Crowds & booking ahead
The busiest weeks are St Patrick’s week, June to August and any weekend with a stadium concert or a Six Nations rugby match. Midweek visits in the shoulder months are cheaper and calmer. Whatever the season, reserve Kilmainham Gaol and the Book of Kells before you travel.
