August weather forecastGrenivík, Iceland
August
Weather in August
August, the last month of the summer in Grenivík, is also a fresh month, with an average temperature ranging between min 4.8°C (40.6°F) and max 10°C (50°F).Temperature
Grenivík starts August with an average high-temperature of a still fresh 10°C (50°F), a minor shift from July's 11.1°C (52°F). In the month of August, the nighttime temperature dips to a steady average of 4.8°C (40.6°F).Humidity
The average relative humidity in August in Grenivík is 82%.Rainfall
In Grenivík, in August, it is raining for 22.3 days, with typically 77mm (3.03") of accumulated precipitation. Throughout the year, there are 178 rainfall days, and 899mm (35.39") of precipitation is accumulated.Snowfall
In Grenivík, Iceland, snow does not fall in July and August.Daylight
In August, the average length of the day in Grenivík, Iceland, is 16h and 45min.On the first day of August in Grenivík, sunrise is at 04:02 and sunset at 22:35. On the last day of the month, sunrise is at 05:47 and sunset at 20:38 GMT.
Sunshine
In Grenivík, the average sunshine in August is 6.4h.UV index
The months with the highest UV index in Grenivík are April through September, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in August interprets into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grenivík, Iceland
- Average high temperature in August: 10°C
The warmest month (with the highest average high temperature) is July (11.1°C).
The month with the lowest average high temperature is December (-3.8°C).
- Average low temperature in August: 4.8°C
The month with the highest average low temperature is July (5.6°C).
The coldest month (with the lowest average low temperature) is December (-9.1°C).
Average pressure in August
Grenivík, Iceland
- Average pressure in August: 1008.5mbar
The month with the highest atmospheric pressure is June (1014.3mbar).
The month with the lowest atmospheric pressure is January (998.5mbar).
Average wind speed in August
Grenivík, Iceland
- Average wind speed in August: 10.3km/h
The windiest month (with the highest average wind speed) is December (16.3km/h).
The calmest month (with the lowest average wind speed) is July (9.9km/h).
Average humidity in August
Grenivík, Iceland
- Average humidity in August: 82%
The months with the highest relative humidity are January, February, March and December (91%).
The month with the lowest relative humidity is June (77%).
Average rainfall in August
Grenivík, Iceland
- Average rainfall in August: 77mm
The wettest month (with the highest rainfall) is December (115mm).
The driest month (with the least rainfall) is June (40mm).
Average rainfall days in August
Grenivík, Iceland
- Average rainfall days in August: 22.3 days
The months with the highest number of rainy days are July and August (22.3 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in August
Grenivík, Iceland
- Average snowfall in August: 0mm
The month with the highest snowfall is December (511mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in August
Grenivík, Iceland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (20.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Grenivík, Iceland
- Average daylight in August: 16h and 42min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 12min).
- Average sunshine in August: 6h and 24min
The month with the most sunshine is May (Average sunshine: 6h and 42min).
The month with the least sunshine is June (Average sunshine: 1h and 6min).
Average sunshine days in August
Grenivík, Iceland
- Average sunshine days in August: 6.8 days
The month with the most sunshine days is May (8.9 days).
The month with the least sunshine days is September (5.3 days).
Average UV index in August
Grenivík, Iceland
- Average UV index in August: 2
The months with the highest UV index are April, May, June, July, August and September (UV index 2).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in August
Grenivík, Iceland
- Average cloud cover in August: 67
The month with the most cloud cover is March (Cloud cover 72).
The month with the least cloud cover is June (Cloud cover 62).
Average visibility in August
Grenivík, Iceland
- Average visibility in August: 8km
The month with the highest visibility is June (9km).
The months with the lowest visibility are January, February, March, April, November and December (7km).





