September weather forecastNurmes, Finland
September
Weather in September
The first month of the autumn, September, is also a fresh month in Nurmes, Finland, with an average temperature fluctuating between 12.1°C (53.8°F) and 6.5°C (43.7°F).Temperature
As August transitions into September, Nurmes sees a drop in the average high-temperature, transitioning from an enjoyable 18.1°C (64.6°F) to a cool 12.1°C (53.8°F). Nighttime temperatures hover around an average low of 6.5°C (43.7°F) in September.Humidity
In Nurmes, the average relative humidity in September is 85%.Rainfall
In September, the rain falls for 15.5 days. Throughout September, 37mm (1.46") of precipitation is accumulated. In Nurmes, during the entire year, the rain falls for 118.2 days and collects up to 444mm (17.48") 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 0.8 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, there are 136.9 snowfall days, and 1269mm (49.96") of snow is accumulated.Daylight
The average length of the day in September is 13h and 0min.On the first day of September, sunrise is at 05:49 and sunset at 20:17. On the last day of the month, sunrise is at 07:10 and sunset at 18:36 EEST.
Sunshine
The average sunshine in September is 5.1h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 2 in September leads to these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nurmes, Finland
- Average high temperature in September: 12.1°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-7.6°C).
- Average low temperature in September: 6.5°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-12.2°C).
Average pressure in September
Nurmes, Finland
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Nurmes, Finland
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is November (14.3km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in September
Nurmes, 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 (68%).
Average rainfall in September
Nurmes, Finland
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Nurmes, Finland
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (1.3 days).
Average snowfall in September
Nurmes, Finland
- Average snowfall in September: 5mm
The month with the highest snowfall is December (226mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Nurmes, Finland
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is December (24.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Nurmes, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 24min).
The month with the shortest days is December (Average daylight: 4h and 42min).
- Average sunshine in September: 5h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Nurmes, Finland
- Average sunshine days in September: 10.6 days
The months with the most sunshine days are May and August (13.1 days).
The month with the least sunshine days is April (7.3 days).
Average UV index in September
Nurmes, 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, October, November and December (UV index 1).
Average cloud cover in September
Nurmes, Finland
- Average cloud cover in September: 63
The month with the most cloud cover is December (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 45).
Average visibility in September
Nurmes, Finland
- Average visibility in September: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (5km).
