The climate in Athni during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Athni and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 21°C (70°F) is normal.
Daytime temperature | 30.3°C 86.5°F |
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Nightly temperature | 21.2°C 70.1°F |
Average temperature | 25.7°C 78.3°F |
Daily sunshine | 6 hrs |
Avg rainfall | 124 mm 4.9 ins |
Rainy days | 7 days |
Sea temperature | 28.4°C 83.1°F |
Humidity | 80% |
Windspeed | 8.6kph 5 mph |
On average September is the wettest month of the year in Athni with around 124mm 4.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Athni in September 2025.
Best places to visit in September
Hottest month: | April | 37.5°C 99.5°F |
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Driest month: | January | 0mm 0ins |
Sunniest month: | February | 10.6hrs |
Coldest month: | December | 29.2°C 84.6°F |
Wettest month: | September | 124mm 4.9ins |