Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In Säynätsalo, the average high-temperature in September decreases from an enjoyable 19.8°C (67.6°F) in August to a mild 13.6°C (56.5°F). Throughout September, Säynätsalo records an average temperature of 7.1°C (44.8°F) at night.Humidity
In Säynätsalo, the average relative humidity in September is 83%.Rainfall
In Säynätsalo, Finland, in September, during 13.2 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Säynätsalo, during the entire year, the rain falls for 121.2 days and collects up to 403mm (15.87") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Säynätsalo. Throughout September, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. In Säynätsalo, during the entire year, snow falls for 96 days and aggregates up to 932mm (36.69") of snow.Daylight
In September, the average length of the day in Säynätsalo is 12h and 56min.On the first day of the month, sunrise is at 06:07 and sunset at 20:26. On the last day of September, in Säynätsalo, Finland, sunrise is at 07:22 and sunset at 18:50 EEST.
Sunshine
In Säynätsalo, Finland, the average sunshine in September is 6.3h.UV index
In Säynätsalo, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the temperature in September in Säynätsalo?
What is the average humidity in September in Säynätsalo?
How much does it rain in Säynätsalo in September?
When does it start to snow in Säynätsalo?
How many hours of daylight does Säynätsalo have in September?
When is the sunrise / sunset in September in Säynätsalo?
How long on average sun shines in September in Säynätsalo?
What is the UV index intensity in September in Säynätsalo?
Average temperature in September
Säynätsalo, Finland
- Average high temperature in September: 13.6°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-5.5°C).
- Average low temperature in September: 7.1°C
The month with the highest average low temperature is July (12.2°C).
The coldest month (with the lowest average low temperature) is January (-9.7°C).
Average pressure in September
Säynätsalo, Finland
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Säynätsalo, Finland
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).
Average humidity in September
Säynätsalo, Finland
- Average humidity in September: 83%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Säynätsalo, Finland
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (50mm).
The driest months (with the least rainfall) are February and March (23mm).
Average rainfall days in September
Säynätsalo, Finland
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Säynätsalo, Finland
- Average snowfall in September: 2mm
The month with the highest snowfall is December (185mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Säynätsalo, Finland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Säynätsalo, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in September
Säynätsalo, Finland
- Average sunshine days in September: 14 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in September
Säynätsalo, 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
Säynätsalo, Finland
- Average cloud cover in September: 58
The month with the most cloud cover is January (Cloud cover 83).
The months with the least cloud cover are July and August (Cloud cover 45).
Average visibility in September
Säynätsalo, Finland
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
Säynätsalo, Finland
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