September weather forecastKullaa, Finland
September
Weather in September
The first month of the autumn, September, is still a mild month in Kullaa, Finland, with temperature in the range of an average high of 14.9°C (58.8°F) and an average low of 9.7°C (49.5°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from an enjoyable 19.8°C (67.6°F) in August to a still refreshing 14.9°C (58.8°F). In September, the recorded average low-temperature in Kullaa is a chilly 9.7°C (49.5°F).Humidity
In Kullaa, the average relative humidity in September is 79%.Rainfall
In Kullaa, in September, during 15.9 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, there are 154.3 rainfall days, and 508mm (20") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Kullaa.Daylight
In Kullaa, the average length of the day in September is 12h and 55min.On the first day of September in Kullaa, sunrise is at 06:23 and sunset at 20:38. On the last day of the month, sunrise is at 07:36 and sunset at 19:05 EEST.
Sunshine
In Kullaa, the average sunshine in September is 7.4h.UV index
The average daily maximum UV index in September in Kullaa is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kullaa, Finland
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is July (13.4°C).
The coldest month (with the lowest average low temperature) is January (-6°C).
Average pressure in September
Kullaa, Finland
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in September
Kullaa, Finland
- Average wind speed in September: 14.2km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in September
Kullaa, Finland
- Average humidity in September: 79%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Kullaa, Finland
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is July (63mm).
The driest months (with the least rainfall) are March and April (31mm).
Average rainfall days in September
Kullaa, Finland
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Kullaa, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (163mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kullaa, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kullaa, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in September
Kullaa, Finland
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Kullaa, Finland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
Kullaa, Finland
- Average cloud cover in September: 47
The months with the most cloud cover are January, February and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Kullaa, Finland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (7km).
