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
During Nilsiä's transition into September, the average high-temperature lessens, moving from a comfortable 19.3°C (66.7°F) in August to a still refreshing 13.6°C (56.5°F). An average nighttime temperature of 7.9°C (46.2°F) is recorded during September.Humidity
In Nilsiä, the average relative humidity in September is 82%.Rainfall
In Nilsiä, Finland, during September, the rain falls for 12.5 days and regularly aggregates up to 25mm (0.98") of precipitation. In Nilsiä, during the entire year, the rain falls for 106.5 days and collects up to 384mm (15.12") of precipitation.Snowfall
January through June, September through December are months with snowfall in Nilsiä. September is the first month it typically snows in Nilsiä. Throughout September, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, in Nilsiä, Finland, there are 110.8 snowfall days, and 1074mm (42.28") of snow is accumulated.Daylight
In Nilsiä, the average length of the day in September is 12h and 59min.On the first day of September, sunrise is at 05:54 and sunset at 20:20. On the last day of the month, sunrise is at 07:14 and sunset at 18:40 EEST.
Sunshine
In September, the average sunshine in Nilsiä is 6.4h.UV index
In Nilsiä, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. To protect against the Sun's most potent rays, avoid direct exposure around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the average September temperature in Nilsiä?
What is the average humidity in September in Nilsiä?
How much does it rain in Nilsiä in September?
When does it start to snow in Nilsiä?
How many hours of daylight does Nilsiä have in September?
When is the sunrise / sunset in September in Nilsiä?
How many hours of sunshine does Nilsiä have in September?
What is the UV index intensity in September in Nilsiä?
Average temperature in September
Nilsiä, Finland
- Average high temperature in September: 13.6°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in September: 7.9°C
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (-9.9°C).
Average pressure in September
Nilsiä, Finland
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Nilsiä, Finland
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is November (15km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in September
Nilsiä, Finland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (68%).
Average rainfall in September
Nilsiä, Finland
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Nilsiä, Finland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in September
Nilsiä, Finland
- Average snowfall in September: 2mm
The month with the highest snowfall is January (230mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Nilsiä, Finland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Nilsiä, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 12min).
The month with the shortest days is December (Average daylight: 4h and 48min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in September
Nilsiä, Finland
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in September
Nilsiä, 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
Nilsiä, Finland
- Average cloud cover in September: 58
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in September
Nilsiä, Finland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (5km).
Nilsiä, Finland
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