Weather in May
In
May,
Seltjarnarnes witnesses a significant advance into the spring season. Residents start to enjoy noticeably longer daylight hours and warmer temperatures, keeping the winter memories in the rear-view mirror. Progress in sea temperature is evident as it climbs to an average of 6.9°C (44.4°F). May holds the promise of almost summer-like weather, subtly nudging away from
April's conditions. The arrival of
June further emphasizes this transition, bringing along with it the vibrant summer months.
Sea temperature
In May, the average sea temperature is 6.9°C (44.4°F).
Note: Swimming in 6.9°C (44.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in May is 18h and 30min.
On the first day of May in Seltjarnarnes, sunrise is at 04:57 and sunset at 21:52. On the last day of the month, sunrise is at 03:23 and sunset at 23:28 GMT.