The temperatures in Schiermonnikoog in September are usually low and can range between 13°C and 18°C.
You can expect about 3 to 8 days of rain in Schiermonnikoog 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 Schiermonnikoog in September 2026.
If you’re planning to visit Schiermonnikoog in the near future, we highly recommend that you review the 14 day weather forecast for Schiermonnikoog before you arrive.
Temperatures
18° / 13°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
94
mm
Sun Hours
9.3
Hrs
