Selfoss in May
The weather in May
In May, Selfoss averages daytime highs of 11° and night-time lows of 4° — cool weather by day. Expect around 109 mm of precipitation spread over about 19 wet days, with average cloud cover near 48%.
Days are 3.5° warmer than in April on average, and June is warmer again by about 2.5°. The sea averages 8°, too cold for most swimmers.
May scores 24/100 — poor conditions for sightseeing — and ranks 5th of the twelve months for Selfoss. For the most comfortable weather, consider June, July and August instead.
Around the middle of the month the sun rises at 04:13 and sets at 22:30 local time, giving 18 h 17 min of daylight. Days lengthen by 186 minutes over the month.
Why 24/100?
How the score for May is builtBeach score this month: 11/100 (adds sea temperature and heat).
Comfort peaks for daytime highs between 18° and 25°C (64–77°F).
Around Selfoss this month
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Iceland's best in May
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Keflavík
Selfoss in May: quick answers
Is May a good time to visit Selfoss?
May scores 24/100 for Selfoss, which we rate as poor. Average highs are 11°C with 19 wet days.
How warm is Selfoss in May?
Daytime highs average 11°C and night-time lows 4°C in May.
Does it rain a lot in Selfoss in May?
Selfoss receives about 109 mm of precipitation in May, falling on around 19 days.
Can you swim in Selfoss in May?
The sea averages 8°C in May, cold for most swimmers.