September weather forecastItäkoski, Finland
September
Weather in September
The first month of the autumn, September, is still a cool month in Itäkoski, Finland, with temperature in the range of an average low of 8.4°C (47.1°F) and an average high of 12.2°C (54°F).Temperature
Itäkoski in September experiences a gentle temperature dip, with average high-temperatures reducing from an enjoyable 16.5°C (61.7°F) in August to a cool 12.2°C (54°F). A modest decline from daytime high temperatures is noticed in September, marking the average low at a frosty 8.4°C (47.1°F).Humidity
In September, the average relative humidity in Itäkoski is 82%.Rainfall
In Itäkoski, in September, during 14.6 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, in Itäkoski, there are 127 rainfall days, and 472mm (18.58") of precipitation is accumulated.Snowfall
In Itäkoski, snow does not fall in July through September.Daylight
In Itäkoski, the average length of the day in September is 13h and 7min.On the first day of September, sunrise is at 05:58 and sunset at 20:43. On the last day of the month, sunrise is at 07:30 and sunset at 18:51 EEST.
Sunshine
The average sunshine in September in Itäkoski, Finland, is 7.1h.UV index
In September, the average daily maximum UV index in Itäkoski is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Itäkoski, Finland
- Average high temperature in September: 12.2°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).
Average pressure in September
Itäkoski, Finland
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in September
Itäkoski, Finland
- Average wind speed in September: 16.5km/h
The windiest month (with the highest average wind speed) is November (17.7km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).
Average humidity in September
Itäkoski, Finland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Itäkoski, Finland
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Itäkoski, Finland
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Itäkoski, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is March (228mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Itäkoski, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Itäkoski, Finland
- Average daylight in September: 13h and 6min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 12min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in September
Itäkoski, Finland
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is October (13.9 days).
The month with the least sunshine days is December (9.9 days).
Average UV index in September
Itäkoski, 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, March, October and December (UV index 1).
Average cloud cover in September
Itäkoski, Finland
- Average cloud cover in September: 52
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Itäkoski, Finland
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).





