May · Iceland
Best time to visit Jökulsárlón in May Weather, crowds & prices
Weather in Jökulsárlón in May
Average temperature 5°C, 150 mm of rain, about 30 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.3/10
Ranked #3 of 12 months
- Avg temp
- 5°C
- Rainfall
- 150 mm
- Humidity
- 87%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Jökulsárlón scores 6.3/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 5°C, 150 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Jökulsárlón is Iceland’s iceberg lagoon-floating blue ice, seals, and Diamond Beach’s ice gems on black sand. Best window: the short high-summer window when daylight peaks.
May in Jökulsárlón — workable with trade-offs
May averages 5°C (40°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Monthly rainfall reaches 150 mm — wet for this destination — but about 30 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 6.3/10 here, 3rd of 12 months, against 7.6/10 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 Jökulsárlón in May?
- In May, Jökulsárlón averages 5°C, 150 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 6.3/10.
- Is May a good time to visit Jökulsárlón?
- May earns a 6.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Jökulsárlón in May?
- Expect about 150 mm of rain in May. Average humidity is 87% and there are about 30 days with 6+ hours of sunshine.
Curated in Jökulsárlón
Tickets & experiences
Things to do in Jökulsárlón
Jökulsárlón, Iceland. Live activities and tours from GetYourGuide, matched to this destination.