September weather forecastSuininki, Finland
September
Weather in September
The first month of the autumn, September, is also a fresh month in Suininki, Finland, with temperature in the range of an average low of 4.8°C (40.6°F) and an average high of 10.8°C (51.4°F).Temperature
In Suininki, the average high-temperature in September decreases from a refreshing 16.6°C (61.9°F) in August to a cool 10.8°C (51.4°F). September is noted for a mean low-temperature of 4.8°C (40.6°F).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. Throughout the year, in Suininki, there are 117.6 rainfall days, and 490mm (19.29") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Suininki. Throughout September, in the average 1.3 snowfall days, it receives 5mm (0.2") of snow. In Suininki, during the entire year, snow falls for 154.5 days and aggregates up to 1613mm (63.5") of snow.Daylight
The average length of the day in September is 13h and 7min.On the first day of September, sunrise is at 05:38 and sunset at 20:24. On the last day of the month, sunrise is at 07:10 and sunset at 18:32 EEST.
Sunshine
In September, the average sunshine in Suininki is 5.2h.UV index
In September, the average daily maximum UV index in Suininki is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 2 translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, Finland
- Average daylight in September: 13h and 6min
The month with the longest days is July (Average daylight: 20h and 12min).
The month with the shortest days is December (Average daylight: 3h and 6min).
- 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
Suininki, 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
Suininki, 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
Suininki, 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
Suininki, 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).
