May weather forecast and climate
Reykjavík, Iceland

The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea out yonder, and a mountain with a snowy peak in the far distance
The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea out yonder, and a mountain with a snowy peak in the far distance

What is the temperature in May in Reykjavík?

In Reykjavík, Iceland, in May, the average high-temperature is 9.4°C (48.9°F), and the average low-temperature is 3.6°C (38.5°F).

How much does it rain in Reykjavík in May?

In May, in Reykjavík, the rain falls for 9.8 days. Throughout May, 43.8mm (1.7") of precipitation is accumulated.

What is the water temperature in May in Reykjavík?

In Reykjavík, Iceland, in May, the average water temperature is 7.2°C (45°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
Average temperature in May - Reykjavík, Iceland
  • Average high temperature in May: 9.4°C

The warmest month (with the highest average high temperature) is July (13.3°C).
The month with the lowest average high temperature is January (1.9°C).

  • Average low temperature in May: 3.6°C

The month with the highest average low temperature is July (8.3°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average rainfall in May - Reykjavík, Iceland
  • Average rainfall in May: 43.8mm

The wettest month (with the highest rainfall) is October (85.6mm).
The driest month (with the lowest rainfall) is May (43.8mm).

Average rainfall days in May - Reykjavík, Iceland
  • Average rainfall days in May: 9.8 days

The month with the highest number of rainy days is October (14.5 days).
The month with the lowest number of rainy days is May (9.8 days).

Average sea temperature in May - Reykjavík, Iceland
  • Average sea temperature in May: 7.2°C

The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (5.1°C).

Average daylight in May / Average sunshine in May - Reykjavík, Iceland
  • Average daylight in May: 18.5h

The month with the longest days is June (Average daylight: 20.9h).
The month with shortest days is December (Average daylight: 4.4h).

  • Average sunshine in May: 6.2h

The month with most sunshine is May (Average sunshine: 6.2h).
The month with least sunshine is December (Average sunshine: 0.4h).

Average UV index in May - Reykjavík, Iceland
  • Average UV index in May: 3

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 0).

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