Reykjavík weather

Our guide to the weather in Reykjavík during May

9

Average high

2

UV Index

88mm

Monthly rainfall

7

Sea temperature

We've looked at the most up-to-date weather data for Reykjavík, 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 Reykjavík weather in May.

What's the temperature like in Reykjavík 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 Reykjavík 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 Reykjavík 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 Reykjavík 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.

Is it too cold to swim in the sea in Reykjavík during May?

The water around Reykjavík is a bracing 7℃ during May and is too cold for for swimming. Those who frequently swim in cold open water might want to take a very quick dip, but prolonged exposure could cause hypothermia. A winter wetsuit will allow longer exposure to the water.

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Weather in Reykjavík

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

1.6

Reykjavík weather in

January
1.8

Reykjavík weather in

February
2.7

Reykjavík weather in

March
5.3

Reykjavík weather in

April
8.5

Reykjavík weather in

May
11.8

Reykjavík weather in

June
13.7

Reykjavík weather in

July
13.1

Reykjavík weather in

August
10.2

Reykjavík weather in

September
6.4

Reykjavík weather in

October
3.4

Reykjavík weather in

November
0.9

Reykjavík weather in

December