September weather forecastSepänkylä, Finland
September
Weather in September
September, the first month of the autumn in Sepänkylä, is still a mild month, with an average temperature varying between 10.7°C (51.3°F) and 15°C (59°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a refreshing 19.7°C (67.5°F) in August to a moderate 15°C (59°F). Night temperatures in September exhibit a subtle decrease, settling at an average of 10.7°C (51.3°F).Humidity
In September, the average relative humidity in Sepänkylä is 80%.Rainfall
In Sepänkylä, in September, during 15.4 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, there are 154.7 rainfall days, and 499mm (19.65") of precipitation is accumulated.Snowfall
In Sepänkylä, snow does not fall in June through September.Daylight
In Sepänkylä, the average length of the day in September is 12h and 52min.On the first day of September, sunrise is at 06:16 and sunset at 20:25. On the last day of the month, sunrise is at 07:25 and sunset at 18:56 EEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sepänkylä, Finland
- Average high temperature in September: 15°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 (-2.1°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in September
Sepänkylä, Finland
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in September
Sepänkylä, Finland
- Average wind speed in September: 16.1km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in September
Sepänkylä, Finland
- Average humidity in September: 80%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Sepänkylä, Finland
- Average rainfall in September: 42mm
The wettest months (with the highest rainfall) are July and October (52mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Sepänkylä, Finland
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Sepänkylä, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (157mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sepänkylä, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sepänkylä, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Sepänkylä, Finland
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is May (16.5 days).
The month with the least sunshine days is December (5.6 days).
Average UV index in September
Sepänkylä, 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 and December (UV index 1).
Average cloud cover in September
Sepänkylä, Finland
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Sepänkylä, Finland
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).





