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
September implies a soft temperature shift, with average high-temperatures reducing from August's enjoyable 16.5°C (61.7°F) to a cool 12.2°C (54°F). Nighttime temperatures in Lautiosaari hover around an average low of 8.4°C (47.1°F) in September, a slight descent from daytime highs.Humidity
In Lautiosaari, the average relative humidity in September is 82%.Rainfall
In Lautiosaari, in September, during 14.6 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, in Lautiosaari, there are 127 rainfall days, and 472mm (18.58") of precipitation is accumulated.Snowfall
July through September are months without snowfall in Lautiosaari.Daylight
The average length of the day in September is 13h and 6min.On the first day of the month, sunrise is at 05:59 and sunset at 20:43. On the last day of September, in Lautiosaari, sunrise is at 07:30 and sunset at 18:52 EEST.
Sunshine
The average sunshine in September is 7.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average September temperature in Lautiosaari?
What is the average humidity in September in Lautiosaari?
How many days does it rain in September in Lautiosaari?
When it does not snow in Lautiosaari?
Does it snow in Lautiosaari in September?
How many hours of daylight does Lautiosaari have in September?
When are sunrise and sunset in September in Lautiosaari?
How long on average sun shines in September in Lautiosaari?
What is the UV index reading in September in Lautiosaari?
Average temperature in September
Lautiosaari, Finland
- Average high temperature in September: 12.2°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).
Average pressure in September
Lautiosaari, Finland
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in September
Lautiosaari, Finland
- Average wind speed in September: 16.5km/h
The windiest month (with the highest average wind speed) is November (17.7km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).
Average humidity in September
Lautiosaari, Finland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Lautiosaari, Finland
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Lautiosaari, Finland
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Lautiosaari, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is March (228mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Lautiosaari, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lautiosaari, Finland
- Average daylight in September: 13h and 1min
The month with the longest days is July (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in September
Lautiosaari, Finland
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is October (13.9 days).
The month with the least sunshine days is December (9.9 days).
Average UV index in September
Lautiosaari, 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, March, October and December (UV index 1).
Average cloud cover in September
Lautiosaari, Finland
- Average cloud cover in September: 52
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Lautiosaari, Finland
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).
Lautiosaari, Finland
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