September weather forecastSienno Dolne, Poland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Sienno Dolne, Poland, with an average temperature varying between 18.7°C (65.7°F) and 11.1°C (52°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a moderately hot 23.4°C (74.1°F) in August to a refreshing 18.7°C (65.7°F). Throughout September, the temperature falls to an average low of 11.1°C (52°F).Humidity
In Sienno Dolne, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 25mm (0.98") of precipitation is accumulated. In Sienno Dolne, during the entire year, the rain falls for 161.6 days and collects up to 423mm (16.65") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Sienno Dolne is 12h and 41min.On the first day of September, sunrise is at 06:08 and sunset at 19:48. On the last day of the month, sunrise is at 06:59 and sunset at 18:37 CEST.
Sunshine
The average sunshine in September in Sienno Dolne, Poland, is 8.6h.UV index
In September, the average daily maximum UV index in Sienno Dolne is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. To protect against the Sun's most potent rays, avoid direct exposure around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sienno Dolne, Poland
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-2.2°C).
Average pressure in September
Sienno Dolne, Poland
- Average pressure in September: 1016.5mbar
The months with the highest atmospheric pressure are September and October (1016.5mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Sienno Dolne, Poland
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (12.2km/h).
Average humidity in September
Sienno Dolne, Poland
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Sienno Dolne, Poland
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is January (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Sienno Dolne, Poland
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Sienno Dolne, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (88mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sienno Dolne, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sienno Dolne, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Sienno Dolne, Poland
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is December (8.3 days).
Average UV index in September
Sienno Dolne, Poland
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Sienno Dolne, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Sienno Dolne, Poland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).
