September weather forecastPolusmäki, Finland
September weather for Polusmäki, Finland: September, the first month of the autumn in Polusmäki, is also a moderate month, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 15.3°C (59.5°F). On the first day of September in Polusmäki, Finland, sunrise is at 06:26 and sunset at 20:35.
September
Weather in September
September, the first month of the autumn in Polusmäki, is also a moderate month, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 15.3°C (59.5°F).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a comfortable 19.7°C (67.5°F) in August to a mild 15.3°C (59.5°F). In September, Polusmäki encounters an average low-temperature of 10.2°C (50.4°F) during the night.Humidity
In September, the average relative humidity in Polusmäki is 79%.Rainfall
In September, in Polusmäki, the rain falls for 14.3 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, in Polusmäki, there are 134.6 rainfall days, and 394mm (15.51") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Polusmäki.Daylight
The average length of the day in September in Polusmäki is 12h and 53min.On the first day of September in Polusmäki, Finland, sunrise is at 06:26 and sunset at 20:35. On the last day of the month, sunrise is at 07:35 and sunset at 19:06 EEST.
Sunshine
In Polusmäki, the average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Polusmäki is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Polusmäki, Finland
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in September: 10.2°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in September
Polusmäki, Finland
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Polusmäki, Finland
- Average wind speed in September: 15.9km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in September
Polusmäki, Finland
- Average humidity in September: 79%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Polusmäki, Finland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Polusmäki, Finland
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Polusmäki, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Polusmäki, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Polusmäki, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Polusmäki, Finland
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in September
Polusmäki, Finland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (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
Polusmäki, Finland
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Polusmäki, Finland
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
