The climate in De Haan during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in De Haan and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 19°C (65°F), whilst at night 11°C (52°F) is normal.
|Daytime temperature||18.5°C 65.2°F|
|Nightly temperature||11.4°C 52.4°F|
|Average temperature||14.9°C 58.8°F|
|Daily sunshine||5.4 hrs|
|Avg rainfall||68 mm 2.7 ins|
|Rainy days||15 days|
|Sea temperature||17.6°C 63.7°F|
|Windspeed||17.3kph 11 mph|
On average September is the 4th wettest month of the year in De Haan with around 68mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.4 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 De Haan in September 2021.
|Hottest month:||August||20.7°C 69.3°F|
|Driest month:||February||44mm 1.7ins|
|Coldest month:||January||5.6°C 42.1°F|
|Wettest month:||November||81mm 3.2ins|