Monthly weather forecast and climate
Arendal, Norway

Average sea temperature - Arendal, Norway

The best month for swimming (with the highest average sea temperature) is August (18.2°C).
The coldest month (with the lowest average sea temperature) is March (3.4°C).

Average daylight - Arendal, Norway

The month with the longest days is June (Average daylight: 18.2h).
The month with shortest days is December (Average daylight: 6.5h).