In this guide
💡 The Short Version: There is no single best month, so choose by what you want. May is the sunniest, at 6.4 hours a day, and June has the fewest rainy days, 9.8, and 16 h 57 of daylight on the 15th. July is the warmest, at 19.5°C. November is the wettest, at 82.7 mm, and 21 December has 7 h 29 of daylight. It rains on 137 days a year. St Patrick’s Festival is 13 to 17 March 2027, Bloomsday is Wednesday 16 June, and the Christmas markets open on 20 November. Or book a walk: the Dublin: Highlights and Hidden Gems Walking Tourad is from €24 for 2 hours.
Dublin month by month
Highs and lows are the mean daily maximum and minimum in °C, and rain is the monthly total in mm with the number of days with 1 mm or more. The weather is Met Éireann’s 1991 to 2020 averages for Dublin Airport, the nearest long-record station, about 10 km north of the centre (Met Éireann), so the centre may differ by a degree or so. Daylight is the length of the day on the 15th, calculated for Dublin’s coordinates.
The lake in St Stephen’s Green. Photo: JacK93, Wikimedia Commons, CC BY-SA 4.0.
| Month | High / low | Rain | Daylight | What changes |
|---|---|---|---|---|
| October 2026 | 13.6 / 7.1 | 78.4 mm, 11.6 days | 10.7 h | The Bram Stoker Festival, 23 to 26 October, and the Dublin Marathon on Sunday 25 October. The clocks go back on Sunday 25 October |
| November 2026 | 10.3 / 4.3 | 82.7 mm, 12.5 days | 8.7 h | Wonderlights at Malahide Castle from 12 November, TwinkleTown from 20 November and Everwinter from 25 November. Ireland play Argentina on 6 November and Fiji on 14 November at the Aviva Stadium, and the 21 November match against South Africa is sold out |
| December 2026 | 8.3 / 2.6 | 72.1 mm, 13.3 days | 7.6 h | The Christmas markets and rinks, the Christ Church choir concerts on 8, 9 and 10 December and New Year’s Festival Dublin from 30 December. The sun sets at about 16:07 on 21 December |
| January 2027 | 8.0 / 2.3 | 61.8 mm, 12.5 days | 8.0 h | NYF Dublin’s last day on 1 January, then TradFest from 20 to 24 January |
| February 2027 | 8.5 / 2.2 | 52.4 mm, 11.0 days | 9.8 h | One of the two driest months, with March |
| March 2027 | 10.1 / 3.0 | 51.4 mm, 10.7 days | 11.7 h | St Patrick’s Festival, 13 to 17 March. Good Friday is 26 March, when the National Museum and the National Gallery are closed, and the clocks go forward on Easter Sunday, 28 March |
| April 2027 | 12.3 / 4.0 | 55.0 mm, 11.1 days | 13.9 h | Sunset moves to about 20:22 by the 15th |
| May 2027 | 14.8 / 6.6 | 57.0 mm, 10.5 days | 15.8 h | The sunniest month, at 6.4 hours a day |
| June 2027 | 17.7 / 9.0 | 64.0 mm, 9.8 days | 17.0 h | Bloomsday on Wednesday 16 June, and Dublin Pride from 23 to 27 June, with the march and parade on Saturday 26 June. Sunrise at 04:56 and sunset at about 21:56 on 21 June |
| July 2027 | 19.5 / 11.3 | 61.0 mm, 11.6 days | 16.5 h | The warmest month |
| August 2027 | 19.1 / 11.2 | 73.4 mm, 11.8 days | 14.9 h | The Dublin Horse Show at the RDS, 4 to 8 August, and Harry Styles at Croke Park on 18, 20 and 21 August |
| September 2027 | 16.9 / 9.5 | 63.3 mm, 10.7 days | 12.8 h | Sunset at about 19:44 on the 15th |
The weather in numbers
- Heat. July is the warmest month, with a mean daily high of 19.5°C, then August at 19.1°C and June at 17.7°C. The highest temperature in the 1991 to 2020 record is 27.2°C, in August.
- Cold. Air frost falls on 7.1 days in January and 7.2 in February, 35 days a year. Snow or sleet falls on 12.5 days a year, and snow lies on the ground on 2.2 days. The lowest in the same record is -12.2°C, in December.
- Rain. 772.5 mm a year, on 137.1 days of 1 mm or more. November is the wettest month at 82.7 mm, then October at 78.4 mm; February (52.4 mm) and March (51.4 mm) are the driest. The most rain in one day is 73.9 mm, in June.
- Sunshine. An average of 4.0 hours a day over the year: 6.4 in May, 6.0 in June, 5.0 in July and August, against 1.9 in January and 1.7 in December.
- Wind. Gales blow on 7.8 days a year, 2.3 of them in January.
- Daylight. From 7 h 29 on 21 December, with sunrise at about 08:37 and sunset at about 16:07, to 17 h 00 on 21 June, with sunrise at about 04:56 and sunset at about 21:56.
- Clocks. They go back on Sunday 25 October 2026 and forward on Sunday 28 March 2027.
The Liffey at sunset, looking towards the Docklands. Photo: 瑞丽江的河水, Wikimedia Commons, CC BY-SA 4.0.
Dates that shape a visit
- Christmas. From 12 November to 3 January, with no market at Dublin Castle in 2026: see Dublin Christmas markets 2026. New Year is in Dublin on New Year’s Eve 2026.
- TradFest. Wednesday 20 to Sunday 24 January 2027, with ticketed concerts at venues across Dublin and free performances in Temple Bar’s pubs: see Temple Bar.
- St Patrick’s Festival. Saturday 13 to Wednesday 17 March 2027, with the free parade at 12:00 on the 17th: see St Patrick’s Festival 2027.
- Bloomsday. Wednesday 16 June 2027, the day on which James Joyce’s Ulysses is set, celebrated with readings and walks. The festival ran from 11 to 16 June in 2026, with readings and songs at Meeting House Square on 16 June and an evening of songs at the James Joyce Centre (bloomsdayfestival.ie). MoLI is open that day.
- Dublin Pride. Wednesday 23 to Sunday 27 June 2027, with the March and Parade on Saturday 26 June (dublinpride.ie).
- The Dublin Horse Show. 4 to 8 August 2027 at the RDS in Ballsbridge (dublinhorseshow.com).
- Croke Park. Harry Styles plays on 18, 20 and 21 August 2027 (crokepark.ie).
- Hotel prices. Dublin hotels averaged €174 a night and 84% occupancy in 2025, and were more than 95% full on 62 nights, according to STR figures reported by Travel Extra. The date matters more than the month: see where to stay in Dublin.
Which month for what
- Sun. May and June, at 6.4 and 6.0 hours a day.
- Long evenings. June, with 16 h 57 of daylight on the 15th.
- Warmth. July and August, with highs of 19.5°C and 19.1°C.
- The fewest rainy days. June, at 9.8, and May, at 10.5.
- Christmas. Late November and December, with 7.6 to 8.7 hours of daylight and a mean high of 8.3°C in December: wear layers.
- Music. January for TradFest, and any evening for the sessions: see traditional music pubs in Dublin.
- Short days. December and January, with 7.6 and 8.0 hours of daylight.
- Indoors in rain. The Guinness Storehouse, the distilleries, the cathedrals and the free museums: see Guinness Storehouse tickets, Dublin whiskey distillery tours and free things to do in Dublin.
Plan the rest
Where to stay in Dublin compares the areas and hotels near Temple Bar lists the closest. Once you have your dates, 3 days in Dublin fits the sights round the closed days. Where to eat in Dublin covers the meals, Temple Bar the pubs, and what to book before you go to Dublin has the hours for every sight. For the way in, see Dublin airport to the city and Dublin public transport. Day trips from Dublin covers the trips out.
Common questions
What is the best month to visit Dublin?
It depends on what you want. May is the sunniest month, with 6.4 hours of sunshine a day, and June has the fewest rainy days, 9.8, and 16 h 57 of daylight on the 15th. July is the warmest, with a mean daily high of 19.5°C. November is the wettest, with 82.7 mm.
How cold is Dublin in winter?
January's mean daily high at Dublin Airport is 8.0°C and its low 2.3°C, with air frost on 7.1 days, and February's high is 8.5°C. Snow or sleet falls on 3.2 days in each of January and February. The shortest day, 21 December, runs from about 08:37 to 16:07.
How many days does it rain in Dublin?
On 137 days a year, counting days with 1 mm or more, and 772.5 mm falls in total. The wettest months are November, with 82.7 mm, and October, with 78.4 mm. February and March are the driest, with 52.4 and 51.4 mm.
When is Bloomsday in 2027?
Wednesday 16 June 2027. The Bloomsday Festival's pages list the 2026 festival as 11 to 16 June, with readings and songs at Meeting House Square on 16 June.
When is St Patrick's Festival in 2027?
From Saturday 13 to Wednesday 17 March 2027, with the parade at 12:00 on 17 March from Parnell Square. See St Patrick's Festival 2027.
When do Dublin hotels fill up?
Dublin hotels averaged 84% occupancy in 2025 and were more than 95% full on 62 nights, according to STR figures reported by Travel Extra. Book early for St Patrick's Festival, Dublin Pride from 23 to 27 June, the Horse Show from 4 to 8 August, Harry Styles at Croke Park on 18, 20 and 21 August, and New Year.
