What August feels like in Dublin
Late summer arrives in Dublin with August. The middle of the day is pleasantly mild. Little changes after sunset — nights are cool, only slightly below the daytime level. Humidity is on the high side, but mild temperatures keep it comfortable.
Rain in Dublin in August
August is persistently wet here: some rain falls on about every other day. A rainy day brings about 6 mm (0.2 in) on average — steady rain rather than a passing shower. Across the year Dublin averages about 5.8 mm per rainy day, so August is typical.
Daylight and sunshine in August
On 15 August the sun rises at about 6:04 am and sets around 8:56 pm local time, giving 14 h 53 min of daylight. Days are getting shorter: 1 h 40 min less daylight than in mid-July. About 65% of daylight hours are sunny; in short, there are plenty of bright spells.
How August compares to the rest of the year
Ranked by average high, August comes out as the 2nd warmest month in Dublin. Afternoons run 0.5°C (0.9°F) cooler than in July, with 2 mm less rain. September is cooler again. September averages a high of 16.8°C (62.2°F).
Who August suits
- Sightseeing: a good fit — comfortable enough to explore on foot all day.
- Parks & outdoor: a good fit — comfortable for long walks and picnics.
- Beach: less ideal — too many rainy days.
Tips for visiting Dublin in August
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Sunglasses
Frequent sunshine — sunglasses and a light hat.
Quick questions
How warm is Dublin in August?
Afternoons average 18.7°C (65.7°F) and nights about 12.9°C (55.2°F) — mild by most people's standards. It is the 2nd warmest month of the year.
Does it rain a lot in Dublin in August?
Yes, fairly — rain falls about every other day and totals about 84 mm, so an umbrella is worth carrying.
What should I wear in Dublin in August?
Pack rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.
Is August or September better for visiting Dublin?
August scores better on our climate ranking (#1 of 12 vs #4), rated Good against Good. September is cooler and has fewer rainy days.