September weather forecastTemmes, Finland
September
Weather in September
The first month of the autumn, September, is still a mild month in Temmes, Finland, with an average temperature varying between 13°C (55.4°F) and 7.7°C (45.9°F).Temperature
In September, the average high-temperature decreases from an enjoyable 18°C (64.4°F) in August to a still refreshing 13°C (55.4°F). During the month of September, the nighttime temperature falls to an average of 7.7°C (45.9°F).Humidity
In September, the average relative humidity is 82%.Rainfall
April and September are months with the least rain when the rain falls for 12.5 days and typically aggregates up to 25mm (0.98") of rain.Snowfall
January through May, September through December are months with snowfall in Temmes. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, in Temmes, Finland, there are 107.1 snowfall days, and 1131mm (44.53") of snow is accumulated.Daylight
In Temmes, the average length of the day in September is 13h and 3min.On the first day of September, sunrise is at 05:59 and sunset at 20:35. On the last day of the month, sunrise is at 07:25 and sunset at 18:49 EEST.
Sunshine
The average sunshine in September is 6.7h.UV index
The average daily maximum UV index in September in Temmes is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Guard yourself - Avoiding sunburn is suggested. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Temmes, Finland
- Average high temperature in September: 13°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in September: 7.7°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 (-10.6°C).
Average pressure in September
Temmes, Finland
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in September
Temmes, Finland
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is November (13.7km/h).
The calmest month (with the lowest average wind speed) is July (10.6km/h).
Average humidity in September
Temmes, Finland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (69%).
Average rainfall in September
Temmes, Finland
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is July (59mm).
The driest months (with the least rainfall) are April and September (25mm).
Average rainfall days in September
Temmes, Finland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Temmes, Finland
- Average snowfall in September: 2mm
The month with the highest snowfall is March (232mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Temmes, Finland
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Temmes, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 21h and 18min).
The month with the shortest days is December (Average daylight: 4h and 6min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Temmes, Finland
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is June (17 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in September
Temmes, Finland
- 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
Temmes, Finland
- Average cloud cover in September: 55
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Temmes, Finland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (6km).
