September weather forecastKäsmu, Estonia
September
Weather in September
The first month of the autumn, September, is also a moderate month in Käsmu, Estonia, with an average temperature ranging between min 10.9°C (51.6°F) and max 15.3°C (59.5°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from an agreeable 20.1°C (68.2°F) in August to a moderate 15.3°C (59.5°F). Käsmu's temperature during September nights registers a minor decrease to an average low of 10.9°C (51.6°F).Humidity
The average relative humidity in September in Käsmu, Estonia, is 79%.Rainfall
In Käsmu, in September, during 13.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Käsmu, during the entire year, the rain falls for 127.9 days and collects up to 301mm (11.85") of precipitation.Snowfall
In Käsmu, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 51min.On the first day of September in Käsmu, sunrise is at 06:13 and sunset at 20:18. On the last day of the month, sunrise is at 07:20 and sunset at 18:51 EEST.
Sunshine
The average sunshine in September is 6.8h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Käsmu, Estonia
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is February (-2.3°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is February (-5.5°C).
Average pressure in September
Käsmu, Estonia
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in September
Käsmu, Estonia
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is December (20.2km/h).
The calmest month (with the lowest average wind speed) is May (12.9km/h).
Average humidity in September
Käsmu, Estonia
- Average humidity in September: 79%
The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (72%).
Average rainfall in September
Käsmu, Estonia
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is August (39mm).
The driest months (with the least rainfall) are February and April (17mm).
Average rainfall days in September
Käsmu, Estonia
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is August (15.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Käsmu, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (77mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Käsmu, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Käsmu, Estonia
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 6h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Käsmu, Estonia
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is May (17.5 days).
The months with the least sunshine days are January and December (10.4 days).
Average UV index in September
Käsmu, 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 and November (UV index 1).
Average cloud cover in September
Käsmu, Estonia
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Käsmu, Estonia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February and March (8km).
