September weather forecastSiemnice, Poland
September
Weather in September
September, the first month of the autumn in Siemnice, is still a refreshing month, with an average temperature fluctuating between 10°C (50°F) and 19.2°C (66.6°F).Temperature
As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a warm 25.2°C (77.4°F) to a comfortable 19.2°C (66.6°F). Siemnice's nighttime temperature in September drops to an average of 10°C (50°F).Humidity
In September, the average relative humidity in Siemnice is 73%.Rainfall
In September, in Siemnice, the rain falls for 10.3 days. Throughout September, 19mm (0.75") of precipitation is accumulated. Throughout the year, there are 135.9 rainfall days, and 341mm (13.43") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Siemnice.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 05:40 and sunset at 19:10. On the last day of September, in Siemnice, sunrise is at 06:24 and sunset at 18:05 CEST.
Sunshine
The average sunshine in September in Siemnice is 7.8h.UV index
In September, the average daily maximum UV index in Siemnice is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 during September leads to these advisories:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To protect against the Sun's most potent rays, avoid direct exposure around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siemnice, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in September
Siemnice, Poland
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is October (1019.1mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in September
Siemnice, Poland
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).
Average humidity in September
Siemnice, Poland
- Average humidity in September: 73%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Siemnice, Poland
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is May (52mm).
The driest month (with the least rainfall) is November (15mm).
Average rainfall days in September
Siemnice, Poland
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Siemnice, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (97mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Siemnice, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Siemnice, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Siemnice, 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 February (10.3 days).
Average UV index in September
Siemnice, Poland
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Siemnice, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Siemnice, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
