May · Iceland
Best time to visit Heimaey in May Weather, crowds & prices
Weather in Heimaey in May
Average temperature 6°C, 158 mm of rain, about 15 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
5.8/10
Ranked #4 of 12 months
- Avg temp
- 6°C
- Rainfall
- 158 mm
- Humidity
- 88%
- Days with 6h+ sun
- 15
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Heimaey scores 5.8/10 for nature and wildlife travel - an above-average month (#4 of 12). Expect around 6°C, 158 mm of rain, and roughly 15 days with 6+ hours of sunshine this month.
Heimaey is the Vestmannaeyjar’s main island-1973 lava fields, puffin cliffs, and a harbour ringed by volcanic walls. Best window: the short high-summer window when daylight peaks.
May in Heimaey — workable with trade-offs
May averages 6°C (43°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 158 mm this is a genuinely wet month: about 15 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 5.8/10 here, 4th of 12 months, against 7.2/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Heimaey in May?
- In May, Heimaey averages 6°C, 158 mm of rain, and about 15 days with 6+ hours of sunshine. Its climate-comfort score is 5.8/10.
- Is May a good time to visit Heimaey?
- May earns a 5.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Heimaey in May?
- Expect about 158 mm of rain in May. Average humidity is 88% and there are about 15 days with 6+ hours of sunshine.
Curated in Heimaey
Tickets & experiences
Things to do in Heimaey
Heimaey, Iceland. Live activities and tours from GetYourGuide, matched to this destination.