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
In Bytomiec, entering September brings a temperature decrement, reducing from August's warm 25°C (77°F) to a refreshing 19.7°C (67.5°F). Throughout September, the temperature tends to fall to a consistent average low of 11.5°C (52.7°F).Humidity
In September, the average relative humidity in Bytomiec, Poland, is 73%.Rainfall
In Bytomiec, in September, it is raining for 12.1 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 155.1 rainfall days, and 336mm (13.23") of precipitation is accumulated.Snowfall
In Bytomiec, snow does not fall in May through September.Daylight
In Bytomiec, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 06:13 and sunset at 19:47. On the last day of September, in Bytomiec, Poland, sunrise is at 07:00 and sunset at 18:40 CEST.
Sunshine
In Bytomiec, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. 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 September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in Bytomiec in September?
How many hours of daylight does Bytomiec have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Bytomiec, Poland
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-2.1°C).
Average pressure in September
Bytomiec, Poland
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is November (1014.3mbar).
Average wind speed in September
Bytomiec, Poland
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Bytomiec, Poland
- Average humidity in September: 73%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Bytomiec, Poland
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Bytomiec, Poland
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Bytomiec, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (50mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Bytomiec, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bytomiec, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 5min
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
Bytomiec, Poland
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is January (10.9 days).
Average UV index in September
Bytomiec, 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
Bytomiec, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Bytomiec, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
