April weather forecast and climate
Hörnefors, Sweden SE

• Average sea temperature in April: 1.4°C

The best month for swimming (with the highest average sea temperature) is August (16.8°C).
The coldest month (with the lowest average sea temperature) is March (-0.1°C).

• Average daylight in April: 15.1h

The month with the longest days is June (Average daylight: 20.5h).
The month with shortest days is December (Average daylight: 4.6h).