September weather forecastUstarbowo, Poland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Ustarbowo, Poland, with an average temperature ranging between min 11.9°C (53.4°F) and max 17.4°C (63.3°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to an enjoyable 17.4°C (63.3°F) from a pleasant 21.8°C (71.2°F). Ustarbowo, during the month of September, experiences an average low-temperature of 11.9°C (53.4°F).Humidity
In Ustarbowo, the average relative humidity in September is 76%.Rainfall
In September, in Ustarbowo, the rain falls for 16 days. Throughout September, 43mm (1.69") of precipitation is accumulated. In Ustarbowo, during the entire year, the rain falls for 171.4 days and collects up to 487mm (19.17") of precipitation.Snowfall
In Ustarbowo, snow does not fall in June through October.Daylight
In September, the average length of the day in Ustarbowo, Poland, is 12h and 43min.On the first day of the month, sunrise is at 05:55 and sunset at 19:38. On the last day of September, in Ustarbowo, sunrise is at 06:48 and sunset at 18:25 CEST.
Sunshine
The average sunshine in September in Ustarbowo is 8h.UV index
In September, the average daily maximum UV index in Ustarbowo, Poland, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 during September leads to these advisories:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ustarbowo, Poland
- Average high temperature in September: 17.4°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in September
Ustarbowo, Poland
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is October (1016.4mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in September
Ustarbowo, Poland
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is December (19.3km/h).
The calmest months (with the lowest average wind speed) are June and August (13.7km/h).
Average humidity in September
Ustarbowo, Poland
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Ustarbowo, Poland
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is July (70mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Ustarbowo, Poland
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Ustarbowo, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Ustarbowo, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Ustarbowo, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Ustarbowo, Poland
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (8.7 days).
Average UV index in September
Ustarbowo, Poland
- Average UV index in September: 4
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
Ustarbowo, Poland
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Ustarbowo, Poland
- Average visibility in September: 10km
The months with the highest visibility are April, June, August and September (10km).
The months with the lowest visibility are January, February, March, May, July, October, November and December (9km).





