The climate in Brackley during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Brackley and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 9°C (48°F) is normal.
| Daytime temperature | 18.1°C 64.6°F |
|---|---|
| Nightly temperature | 8.7°C 47.7°F |
| Average temperature | 13.4°C 56.1°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 53 mm 2.1 ins |
| Rainy days | 12 days |
| Sea temperature | 15.6°C 60.1°F |
| Humidity | 85% |
| Windspeed | 13.7kph 9 mph |
On average September is the 3rd driest month of the year in Brackley with around 53mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 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 Brackley in September 2025.
Best places to visit in September
| Hottest month: | July | 20.9°C 69.6°F |
|---|---|---|
| Driest month: | February | 43mm 1.7ins |
| Sunniest month: | August | 6hrs |
| Coldest month: | January | 5.9°C 42.6°F |
| Wettest month: | December | 66mm 2.6ins |