September weather forecast
Biała Wielka, Poland

September

Weather in September

September, the first month of the autumn in Biała Wielka, is still a comfortable month, with temperature in the range of an average high of 18.5°C (65.3°F) and an average low of 10.4°C (50.7°F).

Temperature

During the transition into September, Biała Wielka observes a decrease in the average high-temperature, falling from a warm 23.9°C (75°F) in August to a comfortable 18.5°C (65.3°F). An average temperature of 10.4°C (50.7°F) is recorded during the nights in September.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Biała Wielka, during September, the rain falls for 12.1 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, there are 138.8 rainfall days, and 438mm (17.24") of precipitation is accumulated.

Snowfall

In Biała Wielka, Poland, snow does not fall in June through September.

Daylight

The average length of the day in September in Biała Wielka is 12h and 38min.
On the first day of September, sunrise is at 05:56 and sunset at 19:26. On the last day of the month, sunrise is at 06:40 and sunset at 18:21 CEST.

Sunshine

In September, the average sunshine is 7.9h.

UV index

In Biała Wielka, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What are September temperatures?
The high-temperature, in September, in Biała Wielka, records 18.5°C (65.3°F), while the low-temperature is 10.4°C (50.7°F).
What is the average humidity in September?
The average relative humidity in September is 74%.
How much does it rain in September?
In Biała Wielka, in September, during 12.1 rainfall days, 37mm (1.46") of precipitation is typically accumulated.
When it does not snow?
In Biała Wielka, snow does not fall in June through September.
Does it snow in September?
In Biała Wielka, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Biała Wielka have in September?
The average day length in September is 12h and 38min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 05:56 and sunset at 19:26. On the last day of the month, sunrise is at 06:40 and sunset at 18:21 CEST.
How many hours of sunshine does Biała Wielka have in September?
In September, the average sunshine duration is 7.9h.
What is the UV index intensity in September?
In Biała Wielka, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Biała Wielka, Poland
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (-0.7°C).

  • Average low temperature in September: 10.4°C

The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).

Average pressure in September
Biała Wielka, Poland
  • Average pressure in September: 1017.7mbar

The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1014.4mbar).

Average wind speed in September
Biała Wielka, Poland
  • Average wind speed in September: 12.1km/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 (10.8km/h).

Average humidity in September
Biała Wielka, Poland
  • Average humidity in September: 74%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and August (69%).

Average rainfall in September
Biała Wielka, Poland
  • Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is November (18mm).

Average rainfall days in September
Biała Wielka, Poland
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in September
Biała Wielka, Poland
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (116mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Biała Wielka, Poland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Biała Wielka, Poland
  • Average daylight in September: 12h and 4min

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 6min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

Average sunshine days in September
Biała Wielka, Poland
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in September
Biała Wielka, Poland
  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).

Average cloud cover in September
Biała Wielka, Poland
  • Average cloud cover in September: 43

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Biała Wielka, Poland
  • Average visibility in September: 9km

The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (8km).

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