01Weather
Dublin weather in August
Afternoons in August average 20.5 °C (69 °F) and nights cool to 12.1 °C (54 °F). The month brings about 86 mm (3.4 in) of rain spread over roughly 14 days. Compared with July it is 0.4 °C cooler; September is 2.3 °C cooler again.
What the averages hide
| In a typical August | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 23 °C / 74 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 18 °C / 64 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 9 °C / 47 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 0.0 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Chance of rain on any given day | 45 % | at least 1 mm |
| Hottest / coldest August day 2016–2025 | 27.0 °C / 4.7 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 August | 05:41 | 21:21 | 15.7 h |
| 15 August | 06:05 | 20:53 | 14.8 h |
| 31 August | 06:33 | 20:17 | 13.7 h |
Daylight shrinks by about 120 minutes over the month. Times are local (Europe/Dublin).
03Crowds
How busy Dublin is in August
very busy The main sights are very busy in August. What drives it:
- Dublin Horse Show
- August bank holiday
- peak international visitors
04Public holidays
Public holidays in August 2027
| Date | Holiday |
|---|---|
| 2 Aug 2027 | August Holiday |
On public holidays many shops close and museums run on Sunday hours; check opening times for the day before and after as well.
05Events
What's on in Dublin in August
Every year in August
| Event | When | Type |
|---|---|---|
| Dublin Horse Show | August, RDS | sport |
07Packing
What to pack for Dublin in August
- layers: t-shirt plus a light jacket for evenings
- comfortable walking shoes
- a compact umbrella or hooded rain jacket, rain falls on roughly one day in three
08Editor's notes
What the numbers don't tell you
August is as busy as July, with the Dublin Horse Show at the RDS in the second week and the August bank holiday on the first Monday. The All-Ireland hurling and football semi-finals draw huge crowds to Croke Park. Afternoons average 19 °C with rain on about fourteen days. Many locals holiday abroad, so neighbourhood restaurants are easier, while the centre stays full. Hotel rates stay at peak until the schools return at the end of the month.
The Dublin Fringe opens in September; August brings the Big Grill festival in Herbert Park and outdoor cinema in the city squares. Daylight shrinks from sixteen hours to fourteen across the month. The Book of Kells and the Storehouse still need a week's notice. For the driest and most settled month, see September.
09Compare
Dublin month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 8 °C | 3 °C | 12 | – | quiet | Mixed |
| February | 10 °C | 3 °C | 13 | – | quiet | Mixed |
| March | 11 °C | 4 °C | 12 | – | very busy | Mixed |
| April | 13 °C | 5 °C | 11 | – | moderate | Good |
| May | 17 °C | 8 °C | 13 | – | busy | Good |
| June | 19 °C | 11 °C | 12 | – | busy | Good |
| July | 21 °C | 12 °C | 13 | – | very busy | Good |
| August | 20 °C | 12 °C | 14 | – | very busy | Good |
| September | 18 °C | 10 °C | 13 | – | busy | Good |
| October | 15 °C | 8 °C | 13 | – | moderate | Good |
| November | 11 °C | 5 °C | 14 | – | quiet | Good |
| December | 9 °C | 4 °C | 14 | – | moderate | Mixed |
Not sure about August? See the best time to visit Dublin.
10Elsewhere
August in nearby cities
| City | High | Rain days |
|---|---|---|
| London in August | 22 °C | 8 |
| Amsterdam in August | 23 °C | 12 |
| Paris in August | 25 °C | 10 |
| Copenhagen in August | 22 °C | – |
| Prague in August | 26 °C | 10 |
| Barcelona in August | 30 °C | 4 |
11FAQ
Dublin in August: your questions
Is August a good time to visit Dublin?
August is a good month to visit Dublin. Daytime highs average 20 °C (69 °F), rain falls on about 14 days, and hotel arrivals run above the yearly average, so the main sights are very busy.
What is the weather like in Dublin in August?
Expect mild days around 20 °C (69 °F) and nights near 12 °C (54 °F). One August in ten brings afternoons above 23 °C, and one in ten stays below 18 °C.
Does it rain a lot in Dublin in August?
August brings about 86 mm (3.4 in) of rain over roughly 14 days, which is showery by Dublin standards. On any given day the chance of at least 1 mm of rain is 45 percent.
What should I wear in Dublin in August?
Pack layers: t-shirt plus a light jacket for evenings, comfortable walking shoes, a compact umbrella or hooded rain jacket, rain falls on roughly one day in three.
Is Dublin crowded in August?
The main sights are very busy in August. Main drivers: Dublin Horse Show; August bank holiday; peak international visitors.
What time does it get dark in Dublin in August?
Around the middle of August the sun sets at about 20:53 and rises at 06:05, giving 14.8 hours of daylight.