Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Śliwnik's transition into September involves a shift in temperature, receding from a warm 25.3°C (77.5°F) in August to a refreshing 19.7°C (67.5°F). During September, Śliwnik observes a consistent average nighttime temperature of 11.4°C (52.5°F).Humidity
In Śliwnik, Poland, the average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 7.8 days and accumulates 14mm (0.55") of precipitation.Snowfall
In Śliwnik, Poland, snow does not fall in June through September.Daylight
In Śliwnik, the average length of the day in September is 12h and 38min.On the first day of September in Śliwnik, sunrise is at 06:11 and sunset at 19:44. 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 8.8h.UV index
In Śliwnik, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Śliwnik in September?
What is the average humidity in September in Śliwnik?
What is the driest month in Śliwnik?
How much does it rain in Śliwnik in September?
When it does not snow in Śliwnik?
Does it snow in Śliwnik in September?
How many hours of daylight does Śliwnik have in September?
When are sunrise and sunset in September in Śliwnik?
How many hours of sunshine does Śliwnik have in September?
What is the UV index reading in September in Śliwnik?
Average temperature in September
Śliwnik, Poland
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (1.7°C).
- Average low temperature in September: 11.4°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 (-2°C).
Average pressure in September
Śliwnik, Poland
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).
Average wind speed in September
Śliwnik, Poland
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Śliwnik, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Śliwnik, Poland
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Śliwnik, Poland
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Śliwnik, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (120mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Śliwnik, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Śliwnik, Poland
- Average daylight in September: 12h and 4min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Śliwnik, Poland
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is September (21.2 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in September
Śliwnik, 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 November (UV index 1).
Average cloud cover in September
Śliwnik, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Śliwnik, Poland
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (7km).
Śliwnik, Poland
Weather forecast for your location
2. Allow the app to use your location