September weather forecastViisli, Estonia
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Viisli, Estonia, with an average temperature varying between 16.1°C (61°F) and 8.5°C (47.3°F).Temperature
The start of September comes with a reduction in the average high-temperature, receding from an agreeable 21.5°C (70.7°F) in August to a refreshing 16.1°C (61°F). During the month of September, an average temperature of 8.5°C (47.3°F) is noted during the nights.Humidity
In Viisli, the average relative humidity in September is 82%.Rainfall
In Viisli, in September, during 16.5 rainfall days, 38mm (1.5") of precipitation is typically accumulated. Throughout the year, in Viisli, there are 170.9 rainfall days, and 525mm (20.67") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 49min.On the first day of the month, sunrise is at 06:11 and sunset at 20:10. On the last day of September, in Viisli, sunrise is at 07:14 and sunset at 18:47 EEST.
Sunshine
In Viisli, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index in Viisli is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Viisli, Estonia
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (-3.5°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is January (-7.6°C).
Average pressure in September
Viisli, Estonia
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is October (1015.5mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in September
Viisli, Estonia
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (14.3km/h).
The calmest months (with the lowest average wind speed) are May and August (11km/h).
Average humidity in September
Viisli, Estonia
- Average humidity in September: 82%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Viisli, Estonia
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is June (59mm).
The driest months (with the least rainfall) are March and April (32mm).
Average rainfall days in September
Viisli, Estonia
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Viisli, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (217mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Viisli, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Viisli, Estonia
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Viisli, Estonia
- Average sunshine days in September: 9 days
The month with the most sunshine days is May (13.3 days).
The month with the least sunshine days is December (3.7 days).
Average UV index in September
Viisli, Estonia
- 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, October, November and December (UV index 1).
Average cloud cover in September
Viisli, Estonia
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 82).
The months with the least cloud cover are May and July (Cloud cover 40).
Average visibility in September
Viisli, Estonia
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (6km).
