September weather forecastNiwnice, Poland
September weather for Niwnice, Poland: The first month of the autumn, September, is still a comfortable month in Niwnice, Poland, with temperature in the range of an average low of 10.8°C (51.4°F) and an average high of 18.8°C (65.8°F). In Niwnice, in September, during 12 rainfall days, 30mm (1.18") of precipitation is typically accumulated.
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Niwnice, Poland, with temperature in the range of an average low of 10.8°C (51.4°F) and an average high of 18.8°C (65.8°F).Temperature
September's onset brings a slight change in high-temperatures, falling from a warm 24.2°C (75.6°F) in August to an enjoyable 18.8°C (65.8°F). Niwnice experiences an average low-temperature reading of 10.8°C (51.4°F) throughout September.Humidity
In September, the average relative humidity in Niwnice is 74%.Rainfall
In Niwnice, in September, during 12 rainfall days, 30mm (1.18") of precipitation is typically accumulated. Throughout the year, in Niwnice, there are 170.7 rainfall days, and 502mm (19.76") of precipitation is accumulated.Snowfall
In Niwnice, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September, sunrise is at 06:12 and sunset at 19:43. On the last day of the month, sunrise is at 06:57 and sunset at 18:37 CEST.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Niwnice, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Niwnice, Poland
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Niwnice, Poland
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is October (1018mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).
Average wind speed in September
Niwnice, Poland
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Niwnice, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Niwnice, Poland
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is May (65mm).
The driest months (with the least rainfall) are April and November (27mm).
Average rainfall days in September
Niwnice, Poland
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in September
Niwnice, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (169mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Niwnice, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Niwnice, Poland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 42min
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 24min).
Average sunshine days in September
Niwnice, Poland
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is January (8 days).
Average UV index in September
Niwnice, Poland
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Niwnice, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Niwnice, Poland
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
