May · Iceland
Best time to visit Mývatn in May Weather, crowds & prices
Weather in Mývatn in May
Average temperature 2°C, 70 mm of rain, about 25 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.8/10
Ranked #2 of 12 months
- Avg temp
- 2°C
- Rainfall
- 70 mm
- Humidity
- 88%
- Days with 6h+ sun
- 25
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Mývatn scores 6.8/10 for nature and wildlife travel - one of the top 12-month picks (#2). Expect around 2°C, 70 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
Lake Mývatn is North Iceland’s volcanic wonderland-pseudocraters, lava labyrinths, and steaming geothermal baths. Best window: the short high-summer window when daylight peaks.
May in Mývatn — middling scores, decent value
At 2°C (35°F) this is proper winter weather in May: layer up and split the day between outdoor highlights and indoor stops.
Budget for roughly 70 mm of rain this month — a flexible day or two helps — with about 25 days with 6+ hours of sunshine and 18.5 hours of daylight to work around it.
That is 6.8/10 on the same scale — 2nd of 12 months, versus 7.1/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
Expect mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Mývatn in May?
- In May, Mývatn averages 2°C, 70 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 6.8/10.
- Is May a good time to visit Mývatn?
- May earns a 6.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Mývatn in May?
- Expect about 70 mm of rain in May. Average humidity is 88% and there are about 25 days with 6+ hours of sunshine.
Curated in Mývatn
Tickets & experiences
Things to do in Mývatn
Mývatn, Iceland. Live activities and tours from GetYourGuide, matched to this destination.