September weather forecastHossa, Finland
September
Weather in September
The first month of the autumn, September, is also a fresh month in Hossa, Finland, with an average temperature fluctuating between 4.8°C (40.6°F) and 10.9°C (51.6°F).Temperature
September's onset corresponds with a shift in the average high-temperature, moving from an enjoyable 16.7°C (62.1°F) in August to a cool 10.9°C (51.6°F). The nighttime temperature, during September, averages of 4.8°C (40.6°F).Humidity
In Hossa, Finland, the average relative humidity in September is 86%.Rainfall
In September, the rain falls for 15.8 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Hossa, during the entire year, the rain falls for 117.7 days and collects up to 499mm (19.65") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 6mm (0.24") of snow. In Hossa, during the entire year, snow falls for 152.2 days and aggregates up to 1684mm (66.3") of snow.Daylight
In September, the average length of the day is 13h and 5min.On the first day of September, sunrise is at 05:41 and sunset at 20:22. On the last day of the month, sunrise is at 07:10 and sunset at 18:32 EEST.
Sunshine
The average sunshine in September is 5.4h.UV index
In Hossa, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in September suggests the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, Finland
- Average daylight in September: 13h and 6min
The month with the longest days is June (Average daylight: 22h and 12min).
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
Hossa, 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
Hossa, 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
Hossa, 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
Hossa, 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).
