Transit Desk

Climate

Weather in Iceland in May

Weather in Iceland, May
In May, Iceland sees average highs of 9.1°C (48°F) and lows of 4.3°C (40°F), with around 133 mm of rain.

Iceland — May

Iceland May
Daytime high
9.1°C (48°F)
Overnight low
4.3°C (40°F)
Rainfall
133 mm
Best-time rank
Off-peak

How May compares

Iceland, May vs. the annual average (2025)
This month9.1°C (48°F) / 4.3°C (40°F) · 133 mm
Yearly average6.9°C (44°F) / 2.4°C (36°F) · 132 mm

May in Iceland runs 2.2°C (4°F) warmer than the yearly average, and is close to the yearly average rainfall. Pack winter clothing — it will be cold, and something waterproof — this is a wetter month.

Common questions

What is the weather like in Iceland in May?

Average highs of 9.1°C (48°F) and lows of 4.3°C (40°F), with around 133 mm of rain.

Is May a good time to visit Iceland?

It is an off-peak month for comfort in Iceland; June, July, August tend to be more pleasant.

Updated climate normals, 2025