Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Hjelmeland, Norway

Sea temperature

In Hjelmeland, Norway, in Mayo, the average water temperature is 9.4°C (48.9°F).
Note: Swimming in 9.4°C (48.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.


The average length of the day in Mayo is 17h.

What is the water temperature in Mayo in Hjelmeland?

In Hjelmeland, the average seawater temperature in Mayo is 9.4°C (48.9°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Hjelmeland have in Mayo?

In Hjelmeland, Norway, the average length of the day in Mayo is 17h.
Average sea temperature in May - Hjelmeland, Norway
  • Average sea temperature in May: 9.4°C

The best month for swimming (with the highest average sea temperature) is August (16.6°C).
The coldest month (with the lowest average sea temperature) is March (4.6°C).

Average daylight in May - Hjelmeland, Norway
  • Average daylight in May: 17h

The month with the longest days is June (Average daylight: 18.5h).
The month with shortest days is December (Average daylight: 6.3h).