September weather forecastSiemnocha, Poland
September
Weather in September
September, the first month of the autumn in Siemnocha, is still a refreshing month, with temperature in the range of an average high of 18.7°C (65.7°F) and an average low of 9.9°C (49.8°F).Temperature
September comes with a decrease in the average high-temperature, falling from a moderately hot 24.3°C (75.7°F) in August to a comfortable 18.7°C (65.7°F). Throughout September, Siemnocha encounters an average temperature drop to a frosty 9.9°C (49.8°F).Humidity
In September, the average relative humidity is 74%.Rainfall
In September, in Siemnocha, Poland, the rain falls for 13.8 days. Throughout September, 36mm (1.42") of precipitation is accumulated. Throughout the year, in Siemnocha, there are 148.8 rainfall days, and 426mm (16.77") of precipitation is accumulated.Snowfall
In Siemnocha, snow does not fall in June through September.Daylight
In Siemnocha, the average length of the day in September is 12h and 41min.On the first day of September in Siemnocha, sunrise is at 05:44 and sunset at 19:22. On the last day of the month, sunrise is at 06:34 and sunset at 18:12 CEST.
Sunshine
In Siemnocha, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Siemnocha is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siemnocha, Poland
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in September
Siemnocha, Poland
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in September
Siemnocha, Poland
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Siemnocha, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and August (69%).
Average rainfall in September
Siemnocha, Poland
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in September
Siemnocha, Poland
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Siemnocha, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Siemnocha, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Siemnocha, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).
Average sunshine days in September
Siemnocha, Poland
- Average sunshine days in September: 13.8 days
The months with the most sunshine days are March and October (16.3 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in September
Siemnocha, Poland
- 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, November and December (UV index 1).
Average cloud cover in September
Siemnocha, Poland
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Siemnocha, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
