Enniskillen Weather in September
What's the weather like in Enniskillen (N Ireland) in September 2025?
The climate in Enniskillen during September can be summarized as mild and wet.
September is in the fall / autumn in Enniskillen and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (60°F), whilst at night 8°C (46°F) is normal.
| Daytime temperature | 15.3°C 59.5°F |
|---|---|
| Nightly temperature | 7.7°C 45.9°F |
| Average temperature | 11.5°C 52.7°F |
| Daily sunshine | 3.7 hrs |
| Avg rainfall | 120 mm 4.7 ins |
| Rainy days | 21 days |
| Sea temperature | 14.1°C 57.4°F |
| Humidity | 91% |
| Windspeed | 18kph 11 mph |
On average September is the 5th wettest month of the year in Enniskillen with around 120mm 4.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.7 hours of sunshine per day.
September temperatures in Enniskillen
September rainfall
September hourly sunshine
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 Enniskillen in September 2025.
Other monthly averages
Best places to visit in September
Enniskillen weather stats
| Hottest month: | July | 17.7°C 63.9°F |
|---|---|---|
| Driest month: | April | 76mm 3ins |
| Sunniest month: | April | 5hrs |
| Coldest month: | January | 6°C 42.8°F |
| Wettest month: | December | 143mm 5.6ins |
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