August weather forecastGrimstad, Norway
August
Weather in August
The last month of the summer, August, is another refreshing month in Grimstad, Norway, with temperature in the range of an average low of 13.2°C (55.8°F) and an average high of 18.3°C (64.9°F).Temperature
August is marked by an average high-temperature of a still enjoyable 18.3°C (64.9°F), almost identical to the preceding month. Grimstad reports a consistent average low-temperature of 13.2°C (55.8°F) throughout August nights.Humidity
The average relative humidity in August is 77%.Rainfall
In August, in Grimstad, Norway, the rain falls for 14.4 days. Throughout August, 50mm (1.97") of precipitation is accumulated. Throughout the year, in Grimstad, Norway, there are 152.2 rainfall days, and 592mm (23.31") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Grimstad.Sea temperature
The month with the warmest seawater is August, with an average sea temperature of 18.2°C (64.8°F).Note: For most, swimming in 18.2°C (64.8°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in August in Grimstad, Norway, is 15h and 19min.On the first day of August in Grimstad, sunrise is at 05:18 and sunset at 21:45. On the last day of the month, sunrise is at 06:23 and sunset at 20:27 CEST.
Sunshine
In Grimstad, the average sunshine in August is 9.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during August translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grimstad, Norway
- Average high temperature in August: 18.3°C
The warmest month (with the highest average high temperature) is July (19.1°C).
The month with the lowest average high temperature is February (1.6°C).
- Average low temperature in August: 13.2°C
The months with the highest average low temperature are July and August (13.2°C).
The coldest month (with the lowest average low temperature) is February (-1.6°C).
Average pressure in August
Grimstad, Norway
- Average pressure in August: 1011.7mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in August
Grimstad, Norway
- Average wind speed in August: 16.3km/h
The windiest month (with the highest average wind speed) is November (21.5km/h).
The calmest month (with the lowest average wind speed) is June (16.1km/h).
Average humidity in August
Grimstad, Norway
- Average humidity in August: 77%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and June (71%).
Average rainfall in August
Grimstad, Norway
- Average rainfall in August: 50mm
The wettest months (with the highest rainfall) are October and November (65mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in August
Grimstad, Norway
- Average rainfall days in August: 14.4 days
The month with the highest number of rainy days is November (16.8 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in August
Grimstad, Norway
- Average snowfall in August: 0mm
The month with the highest snowfall is January (106mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Grimstad, Norway
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Grimstad, Norway
- Average sea temperature in August: 18.2°C
The best month for swimming (with the highest average sea temperature) is August (18.2°C).
The coldest month (with the lowest average sea temperature) is March (3.4°C).
Average daylight in August /
Average sunshine in August
Grimstad, Norway
- Average daylight in August: 15h and 18min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in August: 9h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in August
Grimstad, Norway
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is May (18.5 days).
The month with the least sunshine days is November (7.7 days).
Average UV index in August
Grimstad, Norway
- Average UV index in August: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Grimstad, Norway
- Average cloud cover in August: 38
The month with the most cloud cover is November (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in August
Grimstad, Norway
- Average visibility in August: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
