August weather forecastAkranes, Iceland
August
Weather in August
As Akranes enters August, there is a slight decrease in temperature from July, signalling the onset of autumn. The daylight hours start to decrease, yet there is ample sunshine to enjoy the outdoors. The comfortable, mild weather makes it a perfect month to explore the town, with a blend of summer warmth and autumn's early chill. The decrease in daylight hours gives a glimpse of the coming autumn nights. Despite the impending colder months, August weather remains pleasantly warm and is a fantastic time to visit Akranes, Iceland.Temperature
The introduction of August sees an average high-temperature of a fresh 12.8°C (55°F), hardly deviating from July. An average low-temperature of 8.4°C (47.1°F) is witnessed throughout the month of August, a mere drop from the daytime peak.Humidity
In Akranes, the average relative humidity in August is 79%.Rainfall
In Akranes, in August, during 14.8 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Akranes, there are 166.2 rainfall days, and 416mm (16.38") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Sea temperature
July and August, with an average sea temperature of 11.3°C (52.3°F), are months with the warmest seawater in Akranes.Note: Swimming in 11.3°C (52.3°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
In August, the average length of the day in Akranes is 16h and 21min.On the first day of August in Akranes, sunrise is at 04:35 and sunset at 22:33. On the last day of the month, sunrise is at 06:09 and sunset at 20:47 GMT.
Sunshine
The month with the most sunshine in Akranes is August, with an average of 7.4h of sunshine.UV index
In Akranes, the average daily maximum UV index in August is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 during August translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Akranes, Iceland
- Average high temperature in August: 12.8°C
The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is December (1.3°C).
- Average low temperature in August: 8.4°C
The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is December (-2.4°C).
Average pressure in August
Akranes, Iceland
- Average pressure in August: 1007.7mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).
Average wind speed in August
Akranes, Iceland
- Average wind speed in August: 16km/h
The windiest month (with the highest average wind speed) is February (24.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).
Average humidity in August
Akranes, Iceland
- Average humidity in August: 79%
The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).
Average rainfall in August
Akranes, Iceland
- Average rainfall in August: 37mm
The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).
Average rainfall days in August
Akranes, Iceland
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is December (9.7 days).
Average snowfall in August
Akranes, Iceland
- Average snowfall in August: 0mm
The month with the highest snowfall is March (100mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Akranes, Iceland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Akranes, Iceland
- Average sea temperature in August: 11.3°C
The best months for swimming (with the highest average sea temperature) are July and August (11.3°C).
The coldest month (with the lowest average sea temperature) is March (4.3°C).
Average daylight in August /
Average sunshine in August
Akranes, Iceland
- Average daylight in August: 16h and 24min
The month with the longest days is June (Average daylight: 21h and 0min).
The month with the shortest days is December (Average daylight: 4h and 18min).
- Average sunshine in August: 7h and 24min
The month with the most sunshine is August (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in August
Akranes, Iceland
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is December (14.1 days).
The month with the least sunshine days is September (8.8 days).
Average UV index in August
Akranes, Iceland
- Average UV index in August: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in August
Akranes, Iceland
- Average cloud cover in August: 60
The months with the most cloud cover are March and April (Cloud cover 68).
The months with the least cloud cover are August and December (Cloud cover 60).
Average visibility in August
Akranes, Iceland
- Average visibility in August: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).





