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
September
Weather in September
Temperature
Lieksa's weather changes with the onset of September, slightly falling from a refreshing 18.1°C (64.6°F) in August to a cool 12.1°C (53.8°F). During September, Lieksa's temperature averages to a chilly 6.5°C (43.7°F) at night.Humidity
In September, the average relative humidity in Lieksa is 85%.Rainfall
In Lieksa, in September, during 15.5 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Lieksa, there are 118.2 rainfall days, and 444mm (17.48") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Lieksa, Finland. September is the first month it typically snows in Lieksa. Throughout September, in the average 0.8 snowfall days, it receives 5mm (0.2") of snow. In Lieksa, Finland, during the entire year, snow falls for 136.9 days and aggregates up to 1269mm (49.96") of snow.Daylight
The average length of the day in September in Lieksa, Finland, is 12h and 59min.On the first day of the month, sunrise is at 05:46 and sunset at 20:12. On the last day of September, in Lieksa, sunrise is at 07:06 and sunset at 18:32 EEST.
Sunshine
The average sunshine in September in Lieksa is 5.1h.UV index
In Lieksa, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in September interprets into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Lieksa?
What is the average humidity in September in Lieksa?
How many days does it rain in September in Lieksa?
When does it start snowing in Lieksa?
How many hours of daylight does Lieksa have in September?
When is the sunrise / sunset in September in Lieksa?
How many hours of sunshine does Lieksa have in September?
How high is the UV index in September in Lieksa?
Average temperature in September
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, Finland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 18min).
The month with the shortest days is December (Average daylight: 4h and 48min).
- Average sunshine in September: 5h and 1min
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
Lieksa, 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
Lieksa, 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
Lieksa, 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
Lieksa, 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).
