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
September ushers in a slight temperature change, with average high-temperatures reducing from August's comfortable 19.8°C to a mild 13.6°C. Jyväskylä records a steady low-temperature average of 7.1°C during September.Humidity
The average relative humidity in September is 83%.Rainfall
In September, in Jyväskylä, the rain falls for 13.2 days. Throughout September, 34mm of precipitation is accumulated. In Jyväskylä, Finland, during the entire year, the rain falls for 121.2 days and collects up to 403mm of precipitation.Snowfall
January through June, September through December are months with snowfall in Jyväskylä. September is the first month it typically snows in Jyväskylä. Throughout September, in the average 0.3 snowfall days, it receives 2mm of snow. Throughout the year, there are 96 snowfall days, and 932mm of snow is accumulated.Daylight
In Jyväskylä, the average length of the day in September is 12h and 56min.On the first day of the month, sunrise is at 06:05 and sunset at 20:29. On the last day of September, in Jyväskylä, sunrise is at 07:20 and sunset at 18:53 EEST.
Sunshine
In Jyväskylä, Finland, the average sunshine in September is 6.3h.UV index
The average daily maximum UV index in September in Jyväskylä is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 3 during September leads to these advisories:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
FAQ
What is the average September temperature in Jyväskylä?
What is the average humidity in September in Jyväskylä?
How much does it rain in Jyväskylä in September?
When does it start to snow in Jyväskylä?
How many hours of daylight does Jyväskylä have in September?
When is the sunrise / sunset in September in Jyväskylä?
How long on average sun shines in September in Jyväskylä?
What is the UV index intensity in September in Jyväskylä?
Average temperature in September
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 42min).
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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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
Jyväskylä, 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).
Jyväskylä, Finland
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