August weather forecast and climate
Reykjavík, Iceland

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

What is the temperature in August in Reykjavík?

In August, in Reykjavík, the average high-temperature is 13°C (55.4°F), and the average low-temperature is 7.9°C (46.2°F).

How many days does it rain in August in Reykjavík?

In August, in Reykjavík, Iceland, the rain falls for 11.7 days. Throughout August, 61.8mm (2.4") of precipitation is accumulated.

What is the water temperature in August in Reykjavík?

In August, the average sea temperature in Reykjavík is 11.3°C (52.3°F). Swimming in 11.3°C (52.3°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average UV index in August in Reykjavík?

In August, the average UV index in Reykjavík is 3.
Average temperature in August - Reykjavík, Iceland
  • Average high temperature in August: 13°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 August: 7.9°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 August - Reykjavík, Iceland
  • Average rainfall in August: 61.8mm

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 August - Reykjavík, Iceland
  • Average rainfall days in August: 11.7 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 August - Reykjavík, Iceland
  • Average sea temperature in August: 11.3°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 August / Average sunshine in August - Reykjavík, Iceland
  • Average daylight in August: 16.3h

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 August: 5h

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 August - Reykjavík, Iceland
  • Average UV index in August: 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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