The temperatures in Grindavik in May are quite cold with temperatures between 5°C and 8°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Grindavik. 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.
Please note that Grindavik can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Grindavik in May 2025.
If you’re planning to visit Grindavik in the near future, we highly recommend that you review the 14 day weather forecast for Grindavik before you arrive.
Temperatures
8° / 5°
Rainy Days
11
Snowy Days
1
Dry Days
19
Rainfall
125
mm
Sun Hours
6.7
Hrs
