The climate in 's-Gravenzande during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in 's-Gravenzande and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 11°C (51°F) is normal.
Daytime temperature | 18.2°C 64.7°F |
---|---|
Nightly temperature | 10.7°C 51.3°F |
Average temperature | 14.4°C 58°F |
Daily sunshine | 5 hrs |
Avg rainfall | 79 mm 3.1 ins |
Rainy days | 15 days |
Sea temperature | 17.4°C 63.3°F |
Humidity | 82% |
Windspeed | 16.9kph 11 mph |
On average September is the 4th wettest month of the year in 's-Gravenzande with around 79mm 3.1 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 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 's-Gravenzande in September 2025.
Best places to visit in September
Hottest month: | August | 20.8°C 69.4°F |
---|---|---|
Driest month: | February | 46mm 1.8ins |
Sunniest month: | May | 7.4hrs |
Coldest month: | January | 5.2°C 41.4°F |
Wettest month: | November | 89mm 3.5ins |