September weather forecastSiedlemin, Poland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Siedlemin, Poland, with an average temperature varying between 19.5°C (67.1°F) and 11.2°C (52.2°F).Temperature
Siedlemin's September weather comes with a decrease in average high-temperatures, moving from a moderately hot 24.9°C (76.8°F) in August to an enjoyable 19.5°C (67.1°F). Siedlemin reports an average nighttime low-temperature of 11.2°C (52.2°F) in September.Humidity
In September, the average relative humidity is 71%.Rainfall
In Siedlemin, during September, the rain falls for 10.6 days and regularly aggregates up to 24mm (0.94") of precipitation. Throughout the year, in Siedlemin, Poland, there are 141 rainfall days, and 311mm (12.24") of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In Siedlemin, Poland, the average length of the day in September is 12h and 39min.On the first day of September in Siedlemin, sunrise is at 06:02 and sunset at 19:37. On the last day of the month, sunrise is at 06:50 and sunset at 18:29 CEST.
Sunshine
The average sunshine in September in Siedlemin is 8.4h.UV index
The average daily maximum UV index in September in Siedlemin, Poland, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Undertake protective steps - Preventing sun damage is advised. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siedlemin, Poland
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Siedlemin, Poland
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1014mbar).
Average wind speed in September
Siedlemin, Poland
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (15.5km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Siedlemin, Poland
- Average humidity in September: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Siedlemin, Poland
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (41mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Siedlemin, Poland
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Siedlemin, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (64mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Siedlemin, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Siedlemin, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Siedlemin, Poland
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Siedlemin, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Siedlemin, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Siedlemin, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).
