September weather forecastKaerla, Finland
September
Weather in September
The first month of the autumn, September, is also a moderate month in Kaerla, Finland, with an average temperature fluctuating between 10.2°C (50.4°F) and 15.3°C (59.5°F).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a refreshing 19.7°C (67.5°F) to a moderate 15.3°C (59.5°F). In Kaerla, the average temperature during the nights of September drops to a fresh 10.2°C (50.4°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Kaerla, in September, it is raining for 14.3 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, there are 134.6 rainfall days, and 394mm (15.51") of precipitation is accumulated.Snowfall
In Kaerla, snow does not fall in June through September.Daylight
The average length of the day in September in Kaerla is 12h and 53min.On the first day of September in Kaerla, sunrise is at 06:25 and sunset at 20:35. On the last day of the month, sunrise is at 07:35 and sunset at 19:05 EEST.
Sunshine
In September, the average sunshine in Kaerla is 7.6h.UV index
In Kaerla, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kaerla, Finland
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in September: 10.2°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in September
Kaerla, Finland
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Kaerla, Finland
- Average wind speed in September: 15.9km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in September
Kaerla, Finland
- Average humidity in September: 79%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Kaerla, Finland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Kaerla, Finland
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Kaerla, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kaerla, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kaerla, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Kaerla, Finland
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in September
Kaerla, Finland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (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
Kaerla, Finland
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Kaerla, Finland
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
