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
September
Weather in September
Temperature
The shift to September brings a decrease in the average high-temperature, falling from a warm 23.2°C (73.8°F) in August to a comfortable 18.1°C (64.6°F). During September, Sąpolno's temperature averages to a fresh 10°C (50°F) at night.Humidity
In September, the average relative humidity is 75%.Rainfall
In Sąpolno, Poland, in September, during 9.7 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, there are 129.1 rainfall days, and 321mm (12.64") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 41min.On the first day of the month, sunrise is at 06:00 and sunset at 19:40. On the last day of September, in Sąpolno, Poland, sunrise is at 06:51 and sunset at 18:29 CEST.
Sunshine
In Sąpolno, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September in Sąpolno is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Sąpolno?
What is the average humidity in September in Sąpolno?
How much does it rain in Sąpolno in September?
When it does not snow in Sąpolno?
Does it snow in Sąpolno in September?
What is the average length of the day in September in Sąpolno?
What time are sunrise and sunset in September in Sąpolno?
How many hours of sunshine does Sąpolno have in September?
What is the UV index intensity in September in Sąpolno?
Average temperature in September
Sąpolno, Poland
- Average high temperature in September: 18.1°C
The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in September
Sąpolno, Poland
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is October (1016.9mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Sąpolno, Poland
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in September
Sąpolno, Poland
- Average humidity in September: 75%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (69%).
Average rainfall in September
Sąpolno, Poland
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Sąpolno, Poland
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Sąpolno, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (76mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sąpolno, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sąpolno, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Sąpolno, Poland
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is February (12 days).
Average UV index in September
Sąpolno, Poland
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Sąpolno, Poland
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Sąpolno, Poland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and December (8km).
