September weather forecastKoperniki, Poland

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Koperniki, Poland, with an average temperature fluctuating between 19.2°C (66.6°F) and 10.8°C (51.4°F).

Temperature

The commencement of September indicates a shift in the average high-temperature, receding from August's warm 24.7°C (76.5°F) to a comfortable 19.2°C (66.6°F). An average low-temperature of 10.8°C (51.4°F) is noted during the nights in September.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Koperniki, in September, during 11.1 rainfall days, 35mm (1.38") of precipitation is typically accumulated. Throughout the year, in Koperniki, there are 124 rainfall days, and 320mm (12.6") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Koperniki, the average length of the day in September is 12h and 37min.
On the first day of September in Koperniki, sunrise is at 06:06 and sunset at 19:35. On the last day of the month, sunrise is at 06:50 and sunset at 18:31 CEST.

Sunshine

In Koperniki, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Koperniki is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Guard yourself - Avoiding sunburn is suggested. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Koperniki, is 19.2°C (66.6°F) and the average low-temperature is 10.8°C (51.4°F).

In Koperniki, Poland, the average relative humidity in September is 73%.

In Koperniki, Poland, during September, the rain falls for 11.1 days and regularly aggregates up to 35mm (1.38") of precipitation.

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

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

The average day length in September in Koperniki is 12h and 37min.

On the first day of September, sunrise is at 06:06 and sunset at 19:35. On the last day of the month, sunrise is at 06:50 and sunset at 18:31 CEST.

In Koperniki, the average sunshine duration in September is 8.6h.

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

24.7°C

19.2°C

13.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.4km/h

11.2km/h

12.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

17.8

17.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Koperniki, Poland

Average high temperature in September: 19.2°C

The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (0.8°C).

Average low temperature in September: 10.8°C

The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).

Average pressure in September
Koperniki, Poland

Average pressure in September: 1017.7mbar

The month with the highest atmospheric pressure is October (1018.5mbar).
The month with the lowest atmospheric pressure is July (1014.7mbar).

Average wind speed in September
Koperniki, Poland

Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is December (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).

Average humidity in September
Koperniki, Poland

Average humidity in September: 73%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (67%).

Average rainfall in September
Koperniki, Poland

Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is July (47mm).
The driest months (with the least rainfall) are March and November (15mm).

Average rainfall days in September
Koperniki, Poland

Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in September
Koperniki, Poland

Average snowfall in September: 0mm

The month with the highest snowfall is January (65mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Koperniki, Poland

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September: 12h and 36min

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: 8h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).