September weather forecastNiwnik, Poland
September weather for Niwnik, Poland: The first month of the autumn, September, is still a refreshing month in Niwnik, Poland, with an average temperature ranging between max 19.9°C (67.8°F) and min 11.3°C (52.3°F). In September, in Niwnik, Poland, the rain falls for 11.8 days.
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Niwnik, Poland, with an average temperature ranging between max 19.9°C (67.8°F) and min 11.3°C (52.3°F).Temperature
With the beginning of September, the average high-temperature shows a decrease, transitioning from a moderately hot 25.7°C (78.3°F) in August to an enjoyable 19.9°C (67.8°F). Niwnik registers a consistent average low-temperature of 11.3°C (52.3°F) during September.Humidity
The average relative humidity in September is 71%.Rainfall
In September, in Niwnik, Poland, the rain falls for 11.8 days. Throughout September, 40mm (1.57") of precipitation is accumulated. In Niwnik, Poland, during the entire year, the rain falls for 143.3 days and collects up to 346mm (13.62") of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Niwnik, Poland, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:05 and sunset at 19:36. On the last day of September, sunrise is at 06:50 and sunset at 18:31 CEST.
Sunshine
In Niwnik, Poland, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Niwnik is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Niwnik, Poland
- Average high temperature in September: 19.9°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-3.2°C).
Average pressure in September
Niwnik, Poland
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is October (1018.3mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).
Average wind speed in September
Niwnik, Poland
- Average wind speed in September: 11.2km/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 (10.3km/h).
Average humidity in September
Niwnik, Poland
- Average humidity in September: 71%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Niwnik, Poland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is May (45mm).
The driest months (with the least rainfall) are February and November (18mm).
Average rainfall days in September
Niwnik, Poland
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Niwnik, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (77mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Niwnik, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Niwnik, 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 0min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Niwnik, Poland
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Niwnik, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Niwnik, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Niwnik, Poland
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January and February (8km).
