Monthly climate guide
Dublin weather in August
August in Dublin is typically mild, with average daytime highs around 18°C (64°F) and night-time lows near 12°C (54°F). The month usually brings about 96 mm of rain (wet) and is often cloudy. Daytime highs are about the same as July and 2°C warmer than September.
What stands out in August
- Check the hourly forecast before heading to Temple Bar — showers are likely.
- In Dublin, August is late summer.
- Only one month is warmer in Dublin than August.
- There's little difference between day and night (around 6°C).
Avg high
18°C
64°F
Avg low
12°C
54°F
Rainfall
96 mm
wet
Humidity
86%
relative
Sky
78%
cloud · often cloudy
Dublin weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 8°C / 46°F | 4°C / 39°F | 86 mm | 91% | 80% |
| February | 8°C / 46°F | 4°C / 39°F | 82 mm | 90% | 78% |
| March | 9°C / 48°F | 4°C / 39°F | 73 mm | 88% | 75% |
| April | 11°C / 52°F | 6°C / 42°F | 58 mm | 86% | 73% |
| May | 14°C / 56°F | 8°C / 46°F | 61 mm | 84% | 73% |
| June | 16°C / 61°F | 11°C / 51°F | 82 mm | 84% | 76% |
| July | 18°C / 64°F | 12°C / 54°F | 71 mm | 85% | 75% |
| August | 18°C / 64°F | 12°C / 54°F | 96 mm | 86% | 78% |
| September | 16°C / 61°F | 11°C / 51°F | 82 mm | 87% | 76% |
| October | 13°C / 56°F | 9°C / 48°F | 97 mm | 88% | 74% |
| November | 10°C / 50°F | 7°C / 44°F | 107 mm | 90% | 72% |
| December | 9°C / 47°F | 5°C / 41°F | 111 mm | 92% | 78% |
What to pack for August
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is August a good time to visit Dublin?
Our Dublin guide recommends: May to September for the mildest, driest weather — though Dublin's weather is changeable year-round.
Book Book of Kells and Guinness Storehouse tickets online ahead of time — both are popular enough to have queues without a timed slot.
Best time to visit Dublin →Other Ireland cities in August
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Dublin weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/ireland/dublin/august
<a href="https://weathercompare.eu/weather/ireland/dublin/august">Dublin weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/ireland/dublin" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Dublin weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/ireland/dublin/august">Dublin weather in August</a> – WeatherCompare</p>
Dublin in August: quick answers
Is August a good time to visit Dublin?
August is one of the wetter months in Dublin, with about 96 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Dublin in August?
Average highs are about 18°C (64°F) and average lows about 12°C (54°F), based on 10 years of daily data.
Does it rain a lot in Dublin in August?
Dublin typically gets around 96 mm of rain in August — wet.
When is the best time to visit Dublin?
May to September for the mildest, driest weather — though Dublin's weather is changeable year-round.
Figures are long-term averages for the area around Dublin (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.