August weather forecastKeminmaa, Finland
August
Weather in August
After the peak of summer in July, August declares the gradual return of cooler weather in Keminmaa. Despite the declining temperature, the prevalence of rainfall persists, even more than July, making August the month with the highest rainfall. Yet, the weather holds onto the last threads of summer with warm days and mild nights. The daylight hours start to decrease relative to July, indicating the impending approach of autumn.Temperature
The onset of August brings with it an average high-temperature of a still enjoyable 16.5°C (61.7°F), showing a negligible variation from the month before. During August, Keminmaa perceives a slight decrease in temperature from daytime highs, settling at an average low of 11.8°C (53.2°F).Humidity
In Keminmaa, the average relative humidity in August is 77%.Rainfall
August is the month with the most rainfall. Rain falls for 15.8 days and accumulates 53mm (2.09") of precipitation.Snowfall
July through September are months without snowfall.Sea temperature
In Keminmaa, the average seawater temperature in August is 16.1°C (61°F).Note: Swimming in 16.1°C (61°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
Daylight
The average length of the day in August is 16h and 43min.On the first day of the month, sunrise is at 04:12 and sunset at 22:43. On the last day of August, in Keminmaa, Finland, sunrise is at 05:56 and sunset at 20:47 EEST.
Sunshine
In August, the average sunshine is 10.2h.UV index
In August, the average daily maximum UV index in Keminmaa is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In August, a daily UV index of 4 turns into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keminmaa, Finland
- Average high temperature in August: 16.5°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in August: 11.8°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).
Average pressure in August
Keminmaa, Finland
- Average pressure in August: 1011.3mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in August
Keminmaa, Finland
- Average wind speed in August: 14.7km/h
The windiest month (with the highest average wind speed) is November (17.7km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).
Average humidity in August
Keminmaa, Finland
- Average humidity in August: 77%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (71%).
Average rainfall in August
Keminmaa, Finland
- Average rainfall in August: 53mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in August
Keminmaa, Finland
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in August
Keminmaa, Finland
- Average snowfall in August: 0mm
The month with the highest snowfall is March (228mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in August
Keminmaa, Finland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average sea temperature in August
Keminmaa, Finland
- Average sea temperature in August: 16.1°C
The best month for swimming (with the highest average sea temperature) is July (16.8°C).
The coldest months (with the lowest average sea temperature) are January and February (-0.7°C).
Average daylight in August /
Average sunshine in August
Keminmaa, Finland
- Average daylight in August: 16h and 42min
The month with the longest days is July (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in August
Keminmaa, Finland
- Average sunshine days in August: 12.9 days
The month with the most sunshine days is October (13.9 days).
The month with the least sunshine days is December (9.9 days).
Average UV index in August
Keminmaa, Finland
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, March, October and December (UV index 1).
Average cloud cover in August
Keminmaa, Finland
- Average cloud cover in August: 41
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in August
Keminmaa, Finland
- Average visibility in August: 10km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).





