The weather in Iceland in May is very cold with temperatures between 4°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Iceland. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
You can expect a few days of snow in Iceland during May. It’s important to get out your snow boots and warm mittens to stay warm while you explore Iceland.
Our weather forecast can give you a great sense of what weather to expect in Iceland in May 2025.
If you’re planning to visit Iceland in the near future, we highly recommend that you review the 14 day weather forecast for Iceland before you arrive.
Temperatures
9° / 4°
Rainy Days
9
Snowy Days
3
Dry Days
20
Rainfall
88
mm
Sun Hours
6.6
Hrs
