September weather forecastKoszyce, Poland

September

Weather in September

September, the first month of the autumn in Koszyce, is still a comfortable month, with an average temperature ranging between max 19.6°C (67.3°F) and min 10.1°C (50.2°F).

Temperature

The onset of September comes with a shift in the average high-temperature, falling from a moderately hot 25.2°C (77.4°F) in August to a comfortable 19.6°C (67.3°F). The nighttime temperature dips to a cool 10.1°C (50.2°F) on average during September.

Humidity

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

Rainfall

In Koszyce, during September, the rain falls for 10.5 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 131.2 rainfall days, and 389mm (15.31") of precipitation is accumulated.

Snowfall

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

Daylight

In Koszyce, the average length of the day in September is 12h and 37min.
On the first day of September in Koszyce, Poland, sunrise is at 05:53 and sunset at 19:21. On the last day of the month, sunrise is at 06:37 and sunset at 18:18 CEST.

Sunshine

In September, the average sunshine is 8.1h.

UV index

In Koszyce, Poland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

The high-temperature in Koszyce during September is 19.6°C (67.3°F) and the low-temperature is 10.1°C (50.2°F).

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

In September, the rain falls for 10.5 days. Throughout September, 28mm (1.1") of precipitation is accumulated.

June through September are months without snowfall in Koszyce, Poland.

In Koszyce, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length in Koszyce, Poland, is 12h and 37min.

On the first day of September in Koszyce, Poland, sunrise is at 05:53 and sunset at 19:21. On the last day of the month, sunrise is at 06:37 and sunset at 18:18 CEST.

The average sunshine duration in September in Koszyce is 8.1h.

In Koszyce, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Koszyce, Poland

  • Average high temperature in September: 19.6°C

The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (0.3°C).

  • Average low temperature in September: 10.1°C

The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in September
Koszyce, Poland

  • Average pressure in September: 1017.7mbar

The month with the highest atmospheric pressure is October (1019mbar).
The month with the lowest atmospheric pressure is July (1014.4mbar).

Average wind speed in September
Koszyce, Poland

  • Average wind speed in September: 9.8km/h

The windiest month (with the highest average wind speed) is March (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in September
Koszyce, Poland

  • Average humidity in September: 74%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Koszyce, Poland

  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is May (61mm).
The driest month (with the least rainfall) is March (18mm).

Average rainfall days in September
Koszyce, Poland

  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in September
Koszyce, 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
Koszyce, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Koszyce, Poland

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in September: 8h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

Average sunshine days in September
Koszyce, Poland

  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (17.9 days).
The months with the least sunshine days are February and June (11.6 days).

Average UV index in September
Koszyce, Poland

  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are November and December (UV index 1).

Average cloud cover in September
Koszyce, Poland

  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Koszyce, Poland

  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and February (8km).