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
Vieremä's September weather shows a moderate shift in high-temperatures, falling from August's refreshing 18.2°C (64.8°F) to a cool 12.6°C (54.7°F). During September, Vieremä's temperature falls to a steady low-temperature average of 6.4°C (43.5°F).Humidity
In Vieremä, the average relative humidity in September is 85%.Rainfall
In Vieremä, in September, it is raining for 16 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, in Vieremä, there are 124.6 rainfall days, and 374mm (14.72") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.6 snowfall days, it receives 8mm (0.31") of snow. In Vieremä, during the entire year, snow falls for 126.3 days and aggregates up to 903mm (35.55") of snow.Daylight
The average length of the day in September in Vieremä is 13h and 1min.On the first day of September in Vieremä, sunrise is at 05:57 and sunset at 20:26. On the last day of the month, sunrise is at 07:19 and sunset at 18:44 EEST.
Sunshine
The average sunshine in September in Vieremä is 5.8h.UV index
In September, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during September leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the usual temperature for Vieremä in September?
What is the average humidity in September in Vieremä?
How many days does it rain in September in Vieremä?
When does it start snowing in Vieremä?
How many hours of daylight does Vieremä have in September?
When is the sunrise / sunset in September in Vieremä?
How many hours of sunshine does Vieremä have in September?
What is the UV index reading in September in Vieremä?
Average temperature in September
Vieremä, Finland
- Average high temperature in September: 12.6°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (-7.3°C).
- Average low temperature in September: 6.4°C
The month with the highest average low temperature is July (11.6°C).
The coldest month (with the lowest average low temperature) is January (-11.6°C).
Average pressure in September
Vieremä, Finland
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1006.7mbar).
Average wind speed in September
Vieremä, Finland
- Average wind speed in September: 12.2km/h
The windiest months (with the highest average wind speed) are November and December (13.1km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in September
Vieremä, Finland
- Average humidity in September: 85%
The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is June (69%).
Average rainfall in September
Vieremä, Finland
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is July (48mm).
The driest months (with the least rainfall) are February and April (21mm).
Average rainfall days in September
Vieremä, Finland
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Vieremä, Finland
- Average snowfall in September: 8mm
The month with the highest snowfall is March (160mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Vieremä, Finland
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is December (23.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Vieremä, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 4h and 36min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).
Average sunshine days in September
Vieremä, Finland
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is May (13 days).
The month with the least sunshine days is April (7.6 days).
Average UV index in September
Vieremä, Finland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Vieremä, Finland
- Average cloud cover in September: 63
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 46).
Average visibility in September
Vieremä, 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).
Vieremä, Finland
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