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
In Kaarina, the average high-temperature in September gently drops from a refreshing 19.7°C (67.5°F) in August to a mild 15.3°C (59.5°F). The nighttime temperature in Kaarina, Finland, during September, averages of 10.2°C (50.4°F).Humidity
In Kaarina, the average relative humidity in September is 79%.Rainfall
In Kaarina, during September, the rain falls for 14.3 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 134.6 rainfall days, and 394mm (15.51") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Kaarina.Daylight
The average length of the day in September in Kaarina is 12h and 53min.On the first day of September in Kaarina, sunrise is at 06:25 and sunset at 20:34. On the last day of the month, sunrise is at 07:35 and sunset at 19:05 EEST.
Sunshine
The average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Kaarina, Finland, 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: In September, a daily maximum UV index of 3 leads to the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What is the temperature in September in Kaarina?
What is the average humidity in September in Kaarina?
How much does it rain in Kaarina in September?
When it does not snow in Kaarina?
Does it snow in Kaarina in September?
What is the average length of the day in September in Kaarina?
When are sunrise and sunset in September in Kaarina?
How long on average sun shines in September in Kaarina?
What is the UV index reading in September in Kaarina?
Average temperature in September
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, Finland
- Average daylight in September: 12h and 5min
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 4min
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
Kaarina, 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
Kaarina, 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
Kaarina, 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
Kaarina, 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).
Kaarina, Finland
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