Measurements:
°C
°F
Reykjavik
30°F
SW 11 mph
Feels like: 20°F
Precip: 100%
World Resorts Iceland Reykjavik Weather August Weather in Reykjavik

Reykjavik Weather: August

Average Day Temperature: 55.6°F
Average Night Temperature: 48.8°F
Sea Water Temperature: 53.4°F
Number of Sunny Days: 6 days
Sunshine Hours: 14.7 - 17.9 hours
Number of Rainy Days: 6 days
Precipitation Totals: 3.4 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 60°F. The lowest night temperature was 44°F. The average values for day and night temperatures during August were 54.9°F и 51.5°F respectivly.

Reykjavik Water Sea Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Reykjavik was 54.0°F. The maximum and minimum values were 52.2°F and 56.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in August are gloomy but you can also expect sunny days.

Precipitation Totals in August, in

Precipitation total in August for Reykjavik is 3.4 in.

Wind Speed in August, mph

The average wind speed in August is 10.5 mph. It makes August one of the most windless months of the year for Reykjavik.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Reykjavik in August is 6.3 hours.

Best Time to Visit Reykjavik
The most sunny months:
August 6 days
May 6 days
December 6 days
The most warm months:
July 56.2 °F
August 55.6 °F
June 52.3 °F
Warmest sea temperature:
August 53.4 °F
July 52.8 °F
September 50.6 °F
The most cold months:
December 30.9 °F
January 31.5 °F
February 33.7 °F
The most rainy months:
September 9 days
January 9 days
February 8 days
The most windy months:
February 17 mph
January 16 mph
December 15 mph

Reykjavik on the Weather Map

Iceland Resorts:
NAME
Akureyri +16
Kopavogur +30
Reykjavik +30
Tingvellir +26
24 Hours Weather Forecast
Reykjavik
Local time: 06:38
05 dec, friday
0900 32°F
SW
11 mph
1200 34°F
SW
11 mph
1500 32°F
SW
11 mph
1800 32°F
SW
11 mph
2100 30°F
SW
12 mph
06 dec, saturday
0000 30°F
SW
10 mph
0300 32°F
SW
9 mph
0600 34°F
SW
9 mph