September weather forecastMätäsvaara, Finland
September
Weather in September
September, the first month of the autumn in Mätäsvaara, is still a cool month, with an average temperature varying between 6.5°C (43.7°F) and 12.1°C (53.8°F).Temperature
September's arrival coincides with a drop in the average high-temperature, decreasing from August's refreshing 18.1°C (64.6°F) to a cool 12.1°C (53.8°F). Mätäsvaara experiences an average low-temperature of 6.5°C (43.7°F) in the month of September.Humidity
In Mätäsvaara, the average relative humidity in September is 85%.Rainfall
In Mätäsvaara, during September, the rain falls for 15.5 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, there are 118.2 rainfall days, and 444mm (17.48") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 5mm (0.2") of snow. In Mätäsvaara, during the entire year, snow falls for 136.9 days and aggregates up to 1269mm (49.96") of snow.Daylight
In Mätäsvaara, the average length of the day in September is 12h and 59min.On the first day of the month, sunrise is at 05:48 and sunset at 20:15. On the last day of September, sunrise is at 07:08 and sunset at 18:34 EEST.
Sunshine
The average sunshine in September is 5.1h.UV index
In Mätäsvaara, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mätäsvaara, Finland
- Average high temperature in September: 12.1°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-7.6°C).
- Average low temperature in September: 6.5°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-12.2°C).
Average pressure in September
Mätäsvaara, Finland
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Mätäsvaara, Finland
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is November (14.3km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in September
Mätäsvaara, Finland
- Average humidity in September: 85%
The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is June (68%).
Average rainfall in September
Mätäsvaara, Finland
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Mätäsvaara, Finland
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (1.3 days).
Average snowfall in September
Mätäsvaara, Finland
- Average snowfall in September: 5mm
The month with the highest snowfall is December (226mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Mätäsvaara, Finland
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is December (24.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Mätäsvaara, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 24min).
The month with the shortest days is December (Average daylight: 4h and 42min).
- Average sunshine in September: 5h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Mätäsvaara, Finland
- Average sunshine days in September: 10.6 days
The months with the most sunshine days are May and August (13.1 days).
The month with the least sunshine days is April (7.3 days).
Average UV index in September
Mätäsvaara, Finland
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Mätäsvaara, Finland
- Average cloud cover in September: 63
The month with the most cloud cover is December (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 45).
Average visibility in September
Mätäsvaara, Finland
- Average visibility in September: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (5km).
