September weather forecastKasnäs, Finland
September
Weather in September
September, the first month of the autumn in Kasnäs, is also a moderate month, with an average temperature varying between 14.9°C (58.8°F) and 12.5°C (54.5°F).Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from an enjoyable 18.3°C (64.9°F) in August to a mild 14.9°C (58.8°F). Recording a slight drop from the daily maximum, Kasnäs notes an average low temperature of 12.5°C (54.5°F) in the month of September.Humidity
In Kasnäs, the average relative humidity in September is 78%.Rainfall
In Kasnäs, in September, during 15.6 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Kasnäs, during the entire year, the rain falls for 146.1 days and collects up to 353mm (13.9") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Kasnäs, the average length of the day in September is 12h and 52min.On the first day of the month, sunrise is at 06:26 and sunset at 20:33. On the last day of September, sunrise is at 07:34 and sunset at 19:05 EEST.
Sunshine
In September, the average sunshine is 7.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take precautions - Protection against sun damage is advised. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kasnäs, Finland
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is August (18.3°C).
The month with the lowest average high temperature is February (-0.4°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (-3.2°C).
Average pressure in September
Kasnäs, Finland
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1008.2mbar).
Average wind speed in September
Kasnäs, Finland
- Average wind speed in September: 24.4km/h
The windiest month (with the highest average wind speed) is December (31.4km/h).
The calmest month (with the lowest average wind speed) is May (18.8km/h).
Average humidity in September
Kasnäs, Finland
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Kasnäs, Finland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (46mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Kasnäs, Finland
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is August (16.7 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Kasnäs, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (48mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kasnäs, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kasnäs, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Kasnäs, Finland
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is May (18.1 days).
The month with the least sunshine days is December (7.2 days).
Average UV index in September
Kasnäs, Finland
- Average UV index in September: 4
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 and December (UV index 1).
Average cloud cover in September
Kasnäs, Finland
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Kasnäs, Finland
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
