Reykjavík weather in May (Capital Region, Iceland)

People don't tend to visit Reykjavík in May since it is known as a chilly month. The average maximum daytime temperature in Reykjavík in May lies at 8.9°C (48.02°F). The average minimum temperature goes down to around 2.5°C (36.5°F) (often the minimum temperature is noted at night).

Rainfall during May is moderate with an average of 59mm (2.3 inches). There are generally around 14 rainy days. The sun also shows itself regularly this month with 201 hours of sunshine during the entire month.


Reykjavík, monthly averages in May

Show in Celsius
Min Temperature 36 °F  
Max Temperature 48 °F  
Water Temperature 46 °F *  
Chance of Rain 50%  
Precipitation 2 in  
Rainy days 15 days  
Humidity 76% *  
Sunshine 201 hrs *  
Percentage Sunshine 35% *  

Where to stay in Reykjavík

Where to go in Iceland in May

Find out more about the weather in Iceland in May and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in May? Bring a rain jacket in case it rains during your stay.. Also bring some warm clothes. With a water temperature of around 8.0°C (46.4°F), there is no need to bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Outdoor sports

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Reykjavík.

Our site offers climate and forecast data for every country in the world. Are you going to Iceland? On this website you can find historical weather averages for many cities in Iceland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.