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
The arrival of September indicates a decrease in the average high-temperature, moving from an enjoyable 16.4°C (61.5°F) in August to a cool 10.8°C (51.4°F). Luiro records an average low-temperature of 4.3°C (39.7°F) throughout the month of September.Humidity
The average relative humidity in September in Luiro is 86%.Rainfall
In Luiro, during September, the rain falls for 16 days and regularly aggregates up to 43mm (1.69") of precipitation. In Luiro, during the entire year, the rain falls for 124.9 days and collects up to 470mm (18.5") 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 7mm (0.28") of snow. In Luiro, Finland, during the entire year, snow falls for 143.9 days and aggregates up to 1536mm (60.47") of snow.Daylight
In September, the average length of the day in Luiro, Finland, is 13h and 11min.On the first day of the month, sunrise is at 05:41 and sunset at 20:37. On the last day of September, in Luiro, sunrise is at 07:20 and sunset at 18:39 EEST.
Sunshine
In September, the average sunshine is 5.4h.UV index
In Luiro, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in September interprets into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for Luiro in September?
What is the average humidity in September in Luiro?
How many days does it rain in September in Luiro?
When does it start snowing in Luiro?
What is the average length of the day in September in Luiro?
What time are sunrise and sunset in September in Luiro?
How many hours of sunshine does Luiro have in September?
What is the UV index reading in September in Luiro?
Average temperature in September
Luiro, Finland
- Average high temperature in September: 10.8°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (-8.8°C).
- Average low temperature in September: 4.3°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 (-14.6°C).
Average pressure in September
Luiro, Finland
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.2mbar).
Average wind speed in September
Luiro, Finland
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is March (11.5km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in September
Luiro, Finland
- Average humidity in September: 86%
The months with the highest relative humidity are January, February, April and December (96%).
The month with the lowest relative humidity is June (69%).
Average rainfall in September
Luiro, Finland
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is July (61mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days in September
Luiro, Finland
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (2 days).
Average snowfall in September
Luiro, Finland
- Average snowfall in September: 7mm
The month with the highest snowfall is December (261mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Luiro, Finland
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is December (22.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Luiro, Finland
- Average daylight in September: 13h and 1min
The month with the longest days is May (Average daylight: 19h and 24min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 30min).
The months with the least sunshine are June and December (Average sunshine: 0h and 36min).
Average sunshine days in September
Luiro, Finland
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is October (12.8 days).
The month with the least sunshine days is April (6.1 days).
Average UV index in September
Luiro, Finland
- Average UV index in September: 2
The months with the highest UV index are June and July (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
Luiro, Finland
- Average cloud cover in September: 66
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 52).
Average visibility in September
Luiro, Finland
- Average visibility in September: 7km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April, November and December (5km).
Luiro, Finland
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