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 transition into September is accompanied by a temperature decrease, with the average high-temperature shifting from an enjoyable 18°C (64.4°F) in August to a moderate 13°C (55.4°F). September generally records an average low-temperature of 7.7°C (45.9°F).Humidity
In Ylikiiminki, Finland, the average relative humidity in September is 82%.Rainfall
April and September are months with the least rain in Ylikiiminki when the rain falls for 12.5 days and typically aggregates up to 25mm (0.98") of rain.Snowfall
January through May, September through December are months with snowfall in Ylikiiminki. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 2mm (0.08") of snow. In Ylikiiminki, during the entire year, snow falls for 107.1 days and aggregates up to 1131mm (44.53") of snow.Daylight
In September, the average length of the day in Ylikiiminki is 13h and 4min.On the first day of the month, sunrise is at 05:56 and sunset at 20:34. On the last day of September, sunrise is at 07:23 and sunset at 18:46 EEST.
Sunshine
The average sunshine in September in Ylikiiminki, Finland, is 6.7h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 3 in September translates into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What are the temperatures in Ylikiiminki in September?
What is the average humidity in September in Ylikiiminki?
What is the driest month in Ylikiiminki?
How many days does it rain in September in Ylikiiminki?
When does it start snowing in Ylikiiminki?
What is the average length of the day in September in Ylikiiminki?
When is the sunrise / sunset in September in Ylikiiminki?
How many hours of sunshine does Ylikiiminki have in September?
What is the UV index reading in September in Ylikiiminki?
Average temperature in September
Ylikiiminki, Finland
- Average high temperature in September: 13°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-10.6°C).
Average pressure in September
Ylikiiminki, Finland
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in September
Ylikiiminki, Finland
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is November (13.7km/h).
The calmest month (with the lowest average wind speed) is July (10.6km/h).
Average humidity in September
Ylikiiminki, Finland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (69%).
Average rainfall in September
Ylikiiminki, Finland
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is July (59mm).
The driest months (with the least rainfall) are April and September (25mm).
Average rainfall days in September
Ylikiiminki, Finland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Ylikiiminki, Finland
- Average snowfall in September: 2mm
The month with the highest snowfall is March (232mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Ylikiiminki, Finland
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Ylikiiminki, Finland
- Average daylight in September: 13h and 1min
The month with the longest days is June (Average daylight: 21h and 42min).
The month with the shortest days is December (Average daylight: 3h and 54min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Ylikiiminki, Finland
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is June (17 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in September
Ylikiiminki, 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, February, March, November and December (UV index 1).
Average cloud cover in September
Ylikiiminki, Finland
- Average cloud cover in September: 55
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Ylikiiminki, Finland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (6km).
Ylikiiminki, Finland
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