September weather forecastPenu, Estonia
September
Weather in September
September ushers in the autumn season in Penu, with the weather cooling down and daylight hours receding gradually. The change in seasons is evident, with the city's vegetation morphing into warm, autumn colors. However, the pleasing weather allows for outdoor activities such as sightseeing, without the constraints of oppressive weather. Although temperature and sunshine duration reduce, they remain genteel, offering a welcome contrast to the fading echoes of summer's sizzle.Temperature
September signifies a minor drop in average high-temperature, transitioning from a comfortable 19.9°C (67.8°F) in August to a moderate 15.8°C (60.4°F). Penu records a mild decrease in temperature during the nights of September, averaging a cool 12°C (53.6°F).Humidity
In September, the average relative humidity in Penu, Estonia, is 78%.Rainfall
In Penu, during September, the rain falls for 14.3 days and regularly aggregates up to 33mm (1.3") of precipitation. In Penu, during the entire year, the rain falls for 149.6 days and collects up to 388mm (15.28") of precipitation.Snowfall
May through September are months without snowfall in Penu.Daylight
In Penu, Estonia, the average length of the day in September is 12h and 48min.On the first day of the month, sunrise is at 06:23 and sunset at 20:20. On the last day of September, sunrise is at 07:25 and sunset at 18:58 EEST.
Sunshine
The average sunshine in September in Penu is 7.8h.UV index
In Penu, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Guard yourself - Avoiding sunburn is suggested. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Penu, Estonia
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is February (-1.3°C).
- Average low temperature in September: 12°C
The months with the highest average low temperature are July and August (15.2°C).
The coldest months (with the lowest average low temperature) are January and February (-4.3°C).
Average pressure in September
Penu, Estonia
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is October (1015.5mbar).
The month with the lowest atmospheric pressure is December (1010.4mbar).
Average wind speed in September
Penu, Estonia
- Average wind speed in September: 19.8km/h
The windiest month (with the highest average wind speed) is December (25.1km/h).
The calmest month (with the lowest average wind speed) is May (14.9km/h).
Average humidity in September
Penu, Estonia
- Average humidity in September: 78%
The month with the highest relative humidity is February (91%).
The months with the lowest relative humidity are May, June and July (75%).
Average rainfall in September
Penu, Estonia
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is August (56mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Penu, Estonia
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Penu, Estonia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Penu, Estonia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Penu, 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 48min
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 42min).
Average sunshine days in September
Penu, Estonia
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (7.9 days).
Average UV index in September
Penu, Estonia
- 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 and December (UV index 1).
Average cloud cover in September
Penu, Estonia
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Penu, Estonia
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The month with the lowest visibility is February (8km).





