September weather forecastTyräjärvi, Finland
September
Weather in September
The first month of the autumn, September, is still a cool month in Tyräjärvi, Finland, with an average temperature varying between 4.8°C (40.6°F) and 10.9°C (51.6°F).Temperature
The average high-temperature decreases in September, shifting from a refreshing 16.7°C (62.1°F) in August to a fresh 10.9°C (51.6°F). September in Tyräjärvi sees the temperature falling to a mean low of 4.8°C (40.6°F).Humidity
In Tyräjärvi, the average relative humidity in September is 86%.Rainfall
In September, in Tyräjärvi, the rain falls for 15.8 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Tyräjärvi, during the entire year, the rain falls for 117.7 days and collects up to 499mm (19.65") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Tyräjärvi, Finland. Throughout September, in the average 1.2 snowfall days, it receives 6mm (0.24") of snow. In Tyräjärvi, during the entire year, snow falls for 152.2 days and aggregates up to 1684mm (66.3") of snow.Daylight
In Tyräjärvi, the average length of the day in September is 13h and 5min.On the first day of the month, sunrise is at 05:44 and sunset at 20:25. On the last day of September, in Tyräjärvi, sunrise is at 07:13 and sunset at 18:36 EEST.
Sunshine
The average sunshine in September in Tyräjärvi, Finland, is 5.4h.UV index
In September, the average daily maximum UV index in Tyräjärvi is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 2 in September, converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tyräjärvi, Finland
- Average high temperature in September: 10.9°C
The warmest month (with the highest average high temperature) is July (19.3°C).
The month with the lowest average high temperature is January (-8.3°C).
- Average low temperature in September: 4.8°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-13.6°C).
Average pressure in September
Tyräjärvi, Finland
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1006.2mbar).
Average wind speed in September
Tyräjärvi, Finland
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is November (12.9km/h).
The calmest month (with the lowest average wind speed) is July (10.4km/h).
Average humidity in September
Tyräjärvi, Finland
- Average humidity in September: 86%
The month with the highest relative humidity is January (97%).
The month with the lowest relative humidity is June (69%).
Average rainfall in September
Tyräjärvi, Finland
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in September
Tyräjärvi, Finland
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Tyräjärvi, Finland
- Average snowfall in September: 6mm
The month with the highest snowfall is December (297mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Tyräjärvi, Finland
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is December (24.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Tyräjärvi, Finland
- Average daylight in September: 13h and 6min
The month with the longest days is June (Average daylight: 22h and 18min).
The month with the shortest days is December (Average daylight: 3h and 36min).
- Average sunshine in September: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).
Average sunshine days in September
Tyräjärvi, Finland
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is October (11.9 days).
The month with the least sunshine days is December (6 days).
Average UV index in September
Tyräjärvi, Finland
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in September
Tyräjärvi, Finland
- Average cloud cover in September: 67
The months with the most cloud cover are January, February and December (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 50).
Average visibility in September
Tyräjärvi, Finland
- Average visibility in September: 8km
The months with the highest visibility are June and July (9km).
The months with the lowest visibility are January, February, March, April and December (5km).





