Iceland weather

Our guide to the weather in Iceland during May

9

Average high

2

UV Index

88mm

Monthly rainfall

74%

Humidity

May is a great month to visit Iceland. The temperature is rising, the daylight is increasing and millions of cute puffins return to the island. We've looked at the most up-to-date weather data for Iceland, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Iceland weather in May.

What's the temperature like in Iceland during May?

The temperature reaches around 9℃ during the daytime in May, falling away to 4℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.

Does it snow in Iceland during May?

Possibly. There's a chance of snow during May but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.

Does it rain in Iceland during May?

On average, there will be 9 rainy days during the month, amounting to 87.9mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. You're not likely to see a thunderstorm during your trip.

Is it windy in Iceland during May?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With cool air temperatures, any breeze will feel cold.

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Weather in Iceland

Our month-by-month guide to the weather and climate in Iceland

1.6

Iceland weather in

January
1.8

Iceland weather in

February
2.7

Iceland weather in

March
5.3

Iceland weather in

April
8.5

Iceland weather in

May
11.8

Iceland weather in

June
13.7

Iceland weather in

July
13.1

Iceland weather in

August
10.2

Iceland weather in

September
6.4

Iceland weather in

October
3.4

Iceland weather in

November
0.9

Iceland weather in

December