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 transition into September involves a decrease in the average high-temperature, falling from a pleasant 21.3°C (70.3°F) in August to a refreshing 16.2°C (61.2°F). Stare Bystre usually reports an average low-temperature of 6.8°C (44.2°F) during the month of September.Humidity
In Stare Bystre, the average relative humidity in September is 80%.Rainfall
In Stare Bystre, in September, during 14.9 rainfall days, 50mm (1.97") of precipitation is typically accumulated. In Stare Bystre, during the entire year, the rain falls for 151.1 days and collects up to 724mm (28.5") of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 1mm (0.04") of snow. In Stare Bystre, during the entire year, snow falls for 68.3 days and aggregates up to 1350mm (53.15") of snow.Daylight
The average length of the day in September is 12h and 36min.On the first day of the month, sunrise is at 05:57 and sunset at 19:23. On the last day of September, in Stare Bystre, Poland, sunrise is at 06:39 and sunset at 18:21 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Stare Bystre, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Stare Bystre?
What is the average humidity in September in Stare Bystre?
How much does it rain in Stare Bystre in September?
When does it start snowing in Stare Bystre?
What is the average length of the day in September in Stare Bystre?
When are sunrise and sunset in September in Stare Bystre?
How many hours of sunshine does Stare Bystre have in September?
What is the UV index intensity in September in Stare Bystre?
Average temperature in September
Stare Bystre, Poland
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in September: 6.8°C
The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is January (-7.4°C).
Average pressure in September
Stare Bystre, Poland
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The months with the lowest atmospheric pressure are June and July (1014.4mbar).
Average wind speed in September
Stare Bystre, Poland
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is December (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.6km/h).
Average humidity in September
Stare Bystre, Poland
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Stare Bystre, Poland
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is May (120mm).
The driest month (with the least rainfall) is January (32mm).
Average rainfall days in September
Stare Bystre, Poland
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is June (23.6 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Stare Bystre, Poland
- Average snowfall in September: 1mm
The month with the highest snowfall is December (350mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Stare Bystre, Poland
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (14 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Stare Bystre, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Stare Bystre, Poland
- Average sunshine days in September: 13.7 days
The months with the most sunshine days are October and November (17.5 days).
The month with the least sunshine days is June (4.9 days).
Average UV index in September
Stare Bystre, Poland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Stare Bystre, Poland
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Stare Bystre, Poland
- Average visibility in September: 8km
The months with the highest visibility are July and August (9km).
The months with the lowest visibility are January and February (6km).
