August weather forecastKeldur, Iceland
August
Weather in August
August, the last month of the summer in Keldur, is also a fresh month, with an average temperature varying between 12.3°C (54.1°F) and 9.7°C (49.5°F).Temperature
July and August are the warmest months, with an average high-temperature of 12.3°C (54.1°F).Humidity
In August, the average relative humidity in Keldur is 80%.Rainfall
In Keldur, during August, the rain falls for 16.8 days and regularly aggregates up to 68mm (2.68") of precipitation. Throughout the year, in Keldur, there are 215.2 rainfall days, and 1116mm (43.94") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 16h and 15min.On the first day of the month, sunrise is at 04:32 and sunset at 22:20. On the last day of August, in Keldur, sunrise is at 06:02 and sunset at 20:37 GMT.
Sunshine
In August, the average sunshine in Keldur is 8.5h.UV index
In Keldur, Iceland, the average daily maximum UV index in August is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 3 in August interprets into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keldur, Iceland
- Average high temperature in August: 12.3°C
The warmest months (with the highest average high temperature) are July and August (12.3°C).
The month with the lowest average high temperature is December (4.5°C).
- Average low temperature in August: 9.7°C
The months with the highest average low temperature are July and August (9.7°C).
The coldest months (with the lowest average low temperature) are March and December (1.9°C).
Average pressure in August
Keldur, Iceland
- Average pressure in August: 1007.5mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.8mbar).
Average wind speed in August
Keldur, Iceland
- Average wind speed in August: 21.1km/h
The windiest month (with the highest average wind speed) is February (34.7km/h).
The calmest month (with the lowest average wind speed) is July (19.5km/h).
Average humidity in August
Keldur, Iceland
- Average humidity in August: 80%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is December (73%).
Average rainfall in August
Keldur, Iceland
- Average rainfall in August: 68mm
The wettest month (with the highest rainfall) is January (130mm).
The driest month (with the least rainfall) is June (48mm).
Average rainfall days in August
Keldur, Iceland
- Average rainfall days in August: 16.8 days
The month with the highest number of rainy days is September (21.5 days).
The month with the least rainy days is June (15 days).
Average snowfall in August
Keldur, Iceland
- Average snowfall in August: 0mm
The month with the highest snowfall is March (115mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Keldur, Iceland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Keldur, Iceland
- Average daylight in August: 16h and 12min
The month with the longest days is June (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 4h and 36min).
- Average sunshine in August: 8h and 30min
The months with the most sunshine are May, June and July (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in August
Keldur, Iceland
- Average sunshine days in August: 11.6 days
The month with the most sunshine days is June (12.8 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in August
Keldur, 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, March, April, October, November and December (UV index 2).
Average cloud cover in August
Keldur, Iceland
- Average cloud cover in August: 55
The month with the most cloud cover is March (Cloud cover 65).
The months with the least cloud cover are May and August (Cloud cover 55).
Average visibility in August
Keldur, Iceland
- Average visibility in August: 9km
The months with the highest visibility are May and June (10km).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (9km).
