September weather forecastTeisko, Finland
September
Weather in September
September, the first month of the autumn in Teisko, is also a moderate month, with an average temperature ranging between max 14.8°C (58.6°F) and min 7.6°C (45.7°F).Temperature
The onset of September is marked by a decrease in temperature, transitioning from an agreeable 20.4°C (68.7°F) in August to a moderate 14.8°C (58.6°F). Nighttime temperatures hover around an average low of 7.6°C (45.7°F) in September.Humidity
The average relative humidity in September is 82%.Rainfall
In Teisko, in September, it is raining for 11.9 days, with typically 21mm (0.83") of accumulated precipitation. In Teisko, during the entire year, the rain falls for 114.9 days and collects up to 260mm (10.24") of precipitation.Snowfall
In Teisko, Finland, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 55min.On the first day of the month, sunrise is at 06:16 and sunset at 20:32. On the last day of September, sunrise is at 07:30 and sunset at 18:58 EEST.
Sunshine
In Teisko, Finland, the average sunshine in September is 6.7h.UV index
In September, the average daily maximum UV index in Teisko, Finland, is 3. A UV Index estimate of 3 to 5 represents a moderate health risk 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:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Teisko, Finland
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-4.3°C).
- Average low temperature in September: 7.6°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is January (-8.4°C).
Average pressure in September
Teisko, Finland
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in September
Teisko, Finland
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in September
Teisko, Finland
- Average humidity in September: 82%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in September
Teisko, Finland
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is July (37mm).
The driest months (with the least rainfall) are March and April (16mm).
Average rainfall days in September
Teisko, Finland
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Teisko, Finland
- Average snowfall in September: 0mm
The months with the highest snowfall are January, February and March (86mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Teisko, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (17.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Teisko, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Teisko, Finland
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in September
Teisko, Finland
- Average UV index in September: 3
The months with the highest UV index are June and 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
Teisko, Finland
- Average cloud cover in September: 55
The month with the most cloud cover is February (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 44).
Average visibility in September
Teisko, Finland
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January, February and March (6km).





