The climate in Millbrook during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Millbrook 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 | 18.4°C 65°F |
|---|---|
| Nightly temperature | 9.1°C 48.3°F |
| Average temperature | 13.7°C 56.7°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 50 mm 2 ins |
| Rainy days | 12 days |
| Sea temperature | 15.5°C 59.9°F |
| Humidity | 84% |
| Windspeed | 14kph 9 mph |
On average September is the 5th driest month of the year in Millbrook with around 50mm 2 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 Millbrook in September 2025.
Best places to visit in September
| Hottest month: | July | 21.1°C 70°F |
|---|---|---|
| Driest month: | February | 38mm 1.5ins |
| Sunniest month: | June | 6.9hrs |
| Coldest month: | January | 6.1°C 43°F |
| Wettest month: | August | 56mm 2.2ins |