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
Arrival of September comes with a reduction in the average high-temperature, falling from an enjoyable 17.4°C (63.3°F) in August to a fresh 11.6°C (52.9°F). During September, the temperature is averaged to a low of 4.8°C (40.6°F) at night.Humidity
The average relative humidity in September is 84%.Rainfall
In Raanujärvi, in September, it is raining for 12.6 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 104.6 rainfall days, and 369mm (14.53") of precipitation is accumulated.Snowfall
Months with snowfall in Raanujärvi are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 4mm (0.16") of snow. In Raanujärvi, during the entire year, snow falls for 114.3 days and aggregates up to 1194mm (47.01") of snow.Daylight
In Raanujärvi, the average length of the day in September is 13h and 9min.On the first day of September in Raanujärvi, sunrise is at 05:55 and sunset at 20:46. On the last day of the month, sunrise is at 07:30 and sunset at 18:50 EEST.
Sunshine
In September, the average sunshine in Raanujärvi is 6.3h.UV index
In Raanujärvi, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during September leads to these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Enhance your sun protection with tightly woven, yet airy clothing. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Raanujärvi in September?
What is the average humidity in September in Raanujärvi?
How many days does it rain in September in Raanujärvi?
When does it start snowing in Raanujärvi?
What is the average length of the day in September in Raanujärvi?
What time are sunrise and sunset in September in Raanujärvi?
How long on average sun shines in September in Raanujärvi?
What is the UV index reading in September in Raanujärvi?
Average temperature in September
Raanujärvi, Finland
- Average high temperature in September: 11.6°C
The warmest month (with the highest average high temperature) is July (19.8°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 (10.7°C).
The coldest month (with the lowest average low temperature) is January (-14.2°C).
Average pressure in September
Raanujärvi, Finland
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in September
Raanujärvi, Finland
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest months (with the lowest average wind speed) are April and October (9.2km/h).
Average humidity in September
Raanujärvi, Finland
- Average humidity in September: 84%
The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Raanujärvi, Finland
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Raanujärvi, Finland
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Raanujärvi, Finland
- Average snowfall in September: 4mm
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
Raanujärvi, Finland
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (20.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Raanujärvi, Finland
- Average daylight in September: 13h and 1min
The month with the longest days is May (Average daylight: 19h and 42min).
The month with the shortest days is December (Average daylight: 2h and 36min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The months with the least sunshine are June and December (Average sunshine: 1h and 6min).
Average sunshine days in September
Raanujärvi, Finland
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is August (15.8 days).
The month with the least sunshine days is April (9.1 days).
Average UV index in September
Raanujärvi, Finland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Raanujärvi, Finland
- Average cloud cover in September: 60
The months with the most cloud cover are January and December (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 48).
Average visibility in September
Raanujärvi, Finland
- Average visibility in September: 8km
The month with the highest visibility is June (10km).
The month with the lowest visibility is January (4km).
