Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from an enjoyable 16.7°C (62.1°F) in August to a cool 12.3°C (54.1°F). Keräsjoki records a negligible downturn from daytime temperatures, averaging a low of 7.8°C (46°F) in the month of September.Humidity
The average relative humidity in September in Keräsjoki, Sweden, is 82%.Rainfall
In Keräsjoki, Sweden, during September, the rain falls for 9.6 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, in Keräsjoki, Sweden, there are 94 rainfall days, and 347mm (13.66") of precipitation is accumulated.Snowfall
Months with snowfall in Keräsjoki, Sweden, are January through June, September through December. September is the first month it typically snows in Keräsjoki, Sweden. Throughout September, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. In Keräsjoki, during the entire year, snow falls for 89.7 days and aggregates up to 919mm (36.18") of snow.Daylight
In September, the average length of the day is 13h and 6min.On the first day of September in Keräsjoki, sunrise is at 05:02 and sunset at 19:46. On the last day of the month, sunrise is at 06:33 and sunset at 17:55 CEST.
Sunshine
The average sunshine in September in Keräsjoki, Sweden, is 6.9h.UV index
In Keräsjoki, Sweden, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Keräsjoki in September?
What is the average humidity in September in Keräsjoki?
How many days does it rain in September in Keräsjoki?
When does it start snowing in Keräsjoki?
How many hours of daylight does Keräsjoki have in September?
When is the sunrise / sunset in September in Keräsjoki?
How long on average sun shines in September in Keräsjoki?
How high is the UV index in September in Keräsjoki?
Average temperature in September
Keräsjoki, Sweden
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 7.8°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-10.9°C).
Average pressure in September
Keräsjoki, Sweden
- Average pressure in September: 1010.9mbar
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 September
Keräsjoki, Sweden
- Average wind speed in September: 15.3km/h
The windiest months (with the highest average wind speed) are November and December (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12km/h).
Average humidity in September
Keräsjoki, Sweden
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (70%).
Average rainfall in September
Keräsjoki, Sweden
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Keräsjoki, Sweden
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in September
Keräsjoki, Sweden
- Average snowfall in September: 1mm
The month with the highest snowfall is March (203mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Keräsjoki, Sweden
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Keräsjoki, Sweden
- Average daylight in September: 13h and 1min
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 18min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in September
Keräsjoki, Sweden
- Average sunshine days in September: 19 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in September
Keräsjoki, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Keräsjoki, Sweden
- Average cloud cover in September: 51
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Keräsjoki, Sweden
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (6km).
Keräsjoki, Sweden
Weather forecast for your location
2. Allow the app to use your location
