The temperatures in Wassenaar in September are usually low and can range between 14°C and 18°C.
You can expect about 3 to 8 days of rain in Wassenaar during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Wassenaar in September 2026.
If you’re planning to visit Wassenaar in the near future, we highly recommend that you review the 14 day weather forecast for Wassenaar before you arrive.
Temperatures
18° / 14°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
87
mm
Sun Hours
5.5
Hrs
