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Athlone weather in September 2026
Expect daytime maximum temperatures of 16°C in Athlone, Ireland in September based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 87 mm of rainfall in the month.
- 16°C max day temperature
16 - 3 hours of sunshine per day
- 18 days with some rainfall
18 - 8°C min night temperature
8 - 13 hours of daylight per day
13 - No heat & humidity
0 - 87 mm of monthly rainfall
87 - 4 (Moderate) UV index
4
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Recommended for Ireland
The September weather guide for Ireland (Athlone) 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 Athlone in September?
Daytime temperatures usually reach 17°C in Athlone in September, falling to 10°C at night.
How sunny is it in Athlone in September?
There are normally 4 hours of bright sunshine each day in Athlone in September - that's 33% of daylight hours.
How warm is the sea around Athlone in September?
The average sea temperature around Athlone in September is 14°C.
Does it rain in Athlone in September?
There are usually 15 days with some rain in Athlone in September and the average monthly rainfall is 64mm.
Athlone September sunrise & sunset times
Browse the sunrise and sunset times for Athlone in September 2026. Select a month to view Athlone sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Tuesday, 1st September 2026 | 05:41 | 19:21 |
| Tuesday, 15th September 2026 | 06:05 | 18:48 |
| Wednesday, 30th September 2026 | 06:32 | 18:11 |
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