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Castlebar weather in August 2025
Expect 18°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Castlebar in August. Check more long-term weather averages for Castlebar in August before you book your next holiday to Ireland in 2025/2026.
- 1818°C max day temperature
- 4 hours of sunshine per day
- 2020 days with some rainfall
- 1010°C min night temperature
- 1515 hours of daylight per day
- 0No heat & humidity
- 9393 mm of monthly rainfall
- 55 (Moderate) UV index
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Recommended for Ireland
The August weather guide for Ireland (Castlebar) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
How hot is it in Castlebar in August?
Daytime temperatures usually reach 18°C in Castlebar in August, falling to 10°C at night.
How sunny is it in Castlebar in August?
There are normally 4 hours of bright sunshine each day in Castlebar in August - that's 27% of daylight hours.
Does it rain in Castlebar in August?
There are usually 20 days with some rain in Castlebar in August and the average monthly rainfall is 93mm.
Castlebar August sunrise & sunset times
Browse the sunrise and sunset times for Castlebar in August 2025. Select a month to view Castlebar sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st August 2025 | 04:52 | 20:34 |
Saturday, 16th August 2025 | 05:18 | 20:04 |
Sunday, 31st August 2025 | 05:44 | 19:29 |
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