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Westport weather in September 2025
Expect 16°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Westport in September. Check more long-term weather averages for Westport in September before you book your next holiday to Ireland in 2025/2026.
- 1616°C max day temperature
- 3 hours of sunshine per day
- 2121 days with some rainfall
- 99°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 119119 mm of monthly rainfall
- 44 (Moderate) UV index
- 1414°C sea temperature
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The September weather guide for Ireland (Westport) 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 warm is it in Westport in September?
Daytime temperatures usually reach 16°C in Westport in September, falling to 9°C at night.
How sunny is it in Westport in September?
There are normally 3 hours of bright sunshine each day in Westport in September - that's 26% of daylight hours.
How warm is the sea around Westport in September?
The average sea temperature around Westport in September is 14°C.
Does it rain in Westport in September?
There are usually 21 days with some rain in Westport in September and the average monthly rainfall is 119mm.
Westport September sunrise & sunset times
Browse the sunrise and sunset times for Westport in September 2025. Select a month to view Westport sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:47 | 19:28 |
Monday, 15th September 2025 | 06:12 | 18:54 |
Tuesday, 30th September 2025 | 06:38 | 18:16 |
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