September weather forecastPuolanka, Finland
September
Weather in September
The first month of the autumn, September, is still a cool month in Puolanka, Finland, with an average temperature varying between 5.5°C (41.9°F) and 12.4°C (54.3°F).Temperature
A shift in Puolanka's weather is observed as August turns into September, with the average high temperature reducing from a comfortable 17.9°C (64.2°F) to a fresh 12.4°C (54.3°F). Puolanka throughout September, experiences an average nighttime temperature of 5.5°C (41.9°F).Humidity
In September, the average relative humidity in Puolanka is 86%.Rainfall
In September, the rain falls for 15.1 days. Throughout September, 35mm (1.38") of precipitation is accumulated. In Puolanka, during the entire year, the rain falls for 133.6 days and collects up to 517mm (20.35") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows in Puolanka. Throughout September, in the average 0.7 snowfall days, it receives 9mm (0.35") of snow. Throughout the year, in Puolanka, Finland, there are 133.6 snowfall days, and 1514mm (59.61") of snow is accumulated.Daylight
In Puolanka, Finland, the average length of the day in September is 13h and 4min.On the first day of the month, sunrise is at 05:50 and sunset at 20:27. On the last day of September, sunrise is at 07:17 and sunset at 18:40 EEST.
Sunshine
The average sunshine in September is 5.8h.UV index
The average daily maximum UV index in September in Puolanka is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 2 suggests these recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Puolanka, Finland
- Average high temperature in September: 12.4°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-7.7°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is July (11°C).
The coldest month (with the lowest average low temperature) is January (-12.7°C).
Average pressure in September
Puolanka, Finland
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1005.7mbar).
Average wind speed in September
Puolanka, Finland
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is February (11.7km/h).
The calmest month (with the lowest average wind speed) is July (9.5km/h).
Average humidity in September
Puolanka, Finland
- Average humidity in September: 86%
The months with the highest relative humidity are January, February and December (96%).
The month with the lowest relative humidity is June (69%).
Average rainfall in September
Puolanka, Finland
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Puolanka, Finland
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Puolanka, Finland
- Average snowfall in September: 9mm
The month with the highest snowfall is March (284mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Puolanka, Finland
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is December (23.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Puolanka, Finland
- Average daylight in September: 13h and 6min
The month with the longest days is June (Average daylight: 21h and 30min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in September: 5h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in September
Puolanka, Finland
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is October (12 days).
The month with the least sunshine days is April (6.8 days).
Average UV index in September
Puolanka, Finland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Puolanka, Finland
- Average cloud cover in September: 64
The months with the most cloud cover are January and December (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 47).
Average visibility in September
Puolanka, Finland
- Average visibility in September: 7km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February, March, April and December (5km).
