September weather forecast
Koscierzyna, Poland

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Koscierzyna, Poland, with an average temperature varying between 10.4°C (50.7°F) and 18.5°C (65.3°F).

Temperature

September's arrival correlates with a reduction in the average high-temperature, down from a warm 23.8°C (74.8°F) in August to a comfortable 18.5°C (65.3°F). Throughout September, Koscierzyna experiences a low-temperature average of 10.4°C (50.7°F).

Humidity

In September, the average relative humidity in Koscierzyna is 74%.

Rainfall

In Koscierzyna, in September, it is raining for 12.7 days, with typically 30mm (1.18") of accumulated precipitation. In Koscierzyna, during the entire year, the rain falls for 152.8 days and collects up to 397mm (15.63") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 42min.
On the first day of September, sunrise is at 05:57 and sunset at 19:38. On the last day of the month, sunrise is at 06:49 and sunset at 18:26 CEST.

Sunshine

The average sunshine in September is 8h.

UV index

In Koscierzyna, 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 ordinary person.
Note: An average maximum UV index of 3 in September leads to these recommendations:
Guard yourself - Avoiding sunburn is suggested. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What is the average September temperature in Koscierzyna?
During September, Koscierzyna experiences an average high-temperature of 18.5°C (65.3°F) and a low-temperature of 10.4°C (50.7°F).
What is the average humidity in September in Koscierzyna?
The average relative humidity in September in Koscierzyna is 74%.
How much does it rain in Koscierzyna in September?
In Koscierzyna, during September, the rain falls for 12.7 days and regularly aggregates up to 30mm (1.18") of precipitation.
When it does not snow in Koscierzyna?
In Koscierzyna, snow does not fall in June through September.
Does it snow in Koscierzyna in September?
In Koscierzyna, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Koscierzyna?
In September, the average day length is 12h and 42min.
When are sunrise and sunset in September in Koscierzyna?
On the first day of September in Koscierzyna, sunrise is at 05:57 and sunset at 19:38. On the last day of the month, sunrise is at 06:49 and sunset at 18:26 CEST.
How long on average sun shines in September in Koscierzyna?
In September, the average sunshine duration in Koscierzyna is 8h.
What is the UV index intensity in September in Koscierzyna?
In September, the average daily maximum UV index in Koscierzyna is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Koscierzyna, Poland
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (0°C).

  • Average low temperature in September: 10.4°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
Koscierzyna, Poland
  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is October (1016.9mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).

Average wind speed in September
Koscierzyna, Poland
  • Average wind speed in September: 12.1km/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 (11km/h).

Average humidity in September
Koscierzyna, Poland
  • Average humidity in September: 74%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (69%).

Average rainfall in September
Koscierzyna, Poland
  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (16mm).

Average rainfall days in September
Koscierzyna, Poland
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.8 days).

Average snowfall in September
Koscierzyna, Poland
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (87mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Koscierzyna, Poland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in September
Koscierzyna, Poland
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in September
Koscierzyna, Poland
  • Average UV index in September: 3

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, November and December (UV index 1).

Average cloud cover in September
Koscierzyna, Poland
  • Average cloud cover in September: 42

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Koscierzyna, Poland
  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).

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