September weather forecastKärpänkylä, Finland

September

Weather in September

September, the first month of the autumn in Kärpänkylä, is still a cool month, with an average temperature ranging between min 4.8°C (40.6°F) and max 10.8°C (51.4°F).

Temperature

Kärpänkylä's September weather comes with a decrease in average high-temperatures, moving from a refreshing 16.6°C (61.9°F) in August to a cool 10.8°C (51.4°F). Kärpänkylä records a consistent low-temperature of 4.8°C (40.6°F) during September nights.

Humidity

The average relative humidity in September is 86%.

Rainfall

In September, the rain falls for 15.9 days. Throughout September, 43mm (1.69") of precipitation is accumulated. In Kärpänkylä, during the entire year, the rain falls for 117.6 days and collects up to 490mm (19.29") of precipitation.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.3 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, there are 154.5 snowfall days, and 1613mm (63.5") of snow is accumulated.

Daylight

In Kärpänkylä, the average length of the day in September is 13h and 7min.
On the first day of the month, sunrise is at 05:38 and sunset at 20:22. On the last day of September, sunrise is at 07:09 and sunset at 18:31 EEST.

Sunshine

In September, the average sunshine is 5.2h.

UV index

In September, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 2 during September leads to these advisories:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

An average high-temperature, in September, in Kärpänkylä, is 10.8°C (51.4°F) and the average low-temperature is 4.8°C (40.6°F).

In Kärpänkylä, Finland, the average relative humidity in September is 86%.

In Kärpänkylä, in September, during 15.9 rainfall days, 43mm (1.69") of precipitation is typically accumulated.

September is the first month it typically snows. Throughout September, in the average 1.3 snowfall days, it receives 5mm (0.2") of snow.

In September, the average day length is 13h and 7min.

On the first day of September, sunrise is at 05:38 and sunset at 20:22. On the last day of the month, sunrise is at 07:09 and sunset at 18:31 EEST.

In September, the average sunshine duration is 5.2h.

In September, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kärpänkylä, Finland

  • Average high temperature in September: 10.8°C

The warmest month (with the highest average high temperature) is July (19.2°C).
The month with the lowest average high temperature is January (-8.4°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 (-13.8°C).

Average pressure in September
Kärpänkylä, Finland

  • Average pressure in September: 1011.3mbar

The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1006.1mbar).

Average wind speed in September
Kärpänkylä, 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 (10.5km/h).

Average humidity in September
Kärpänkylä, 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 (70%).

Average rainfall in September
Kärpänkylä, Finland

  • Average rainfall in September: 43mm

The wettest month (with the highest rainfall) is July (57mm).
The driest months (with the least rainfall) are January and April (31mm).

Average rainfall days in September
Kärpänkylä, Finland

  • Average rainfall days in September: 15.9 days

The month with the highest number of rainy days is August (18.4 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in September
Kärpänkylä, Finland

  • Average snowfall in September: 5mm

The month with the highest snowfall is December (283mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in September
Kärpänkylä, Finland

  • Average snowfall days in September: 1.3 days

The month with the highest number of snowfall days is December (24.5 days).
The month with the least snowfall days is July (0 days).

Average daylight in September /
Average sunshine in September
Kärpänkylä, Finland

  • Average daylight in September: 13h and 6min

The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 12min).

  • Average sunshine in September: 5h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).

Average sunshine days in September
Kärpänkylä, Finland

  • Average sunshine days in September: 10.3 days

The month with the most sunshine days is July (11.6 days).
The month with the least sunshine days is April (5.3 days).

Average UV index in September
Kärpänkylä, 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
Kärpänkylä, Finland

  • Average cloud cover in September: 68

The month with the most cloud cover is February (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 51).

Average visibility in September
Kärpänkylä, Finland

  • Average visibility in September: 7km

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).