September weather forecastCiasna, Poland

September

Weather in September

September, the first month of the autumn in Ciasna, is also an enjoyable month, with an average temperature varying between 11.2°C (52.2°F) and 18.9°C (66°F).

Temperature

September brings a decrease in the average high-temperature, shifting from a warm 24.7°C (76.5°F) in August to an enjoyable 18.9°C (66°F). In Ciasna, in September, the average low-temperature is a cool 11.2°C (52.2°F).

Humidity

In Ciasna, the average relative humidity in September is 72%.

Rainfall

In Ciasna, in September, during 14.1 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, in Ciasna, there are 172.5 rainfall days, and 537mm (21.14") of precipitation is accumulated.

Snowfall

In Ciasna, snow does not fall in June through September.

Daylight

In September, the average length of the day in Ciasna is 12h and 38min.
On the first day of September, sunrise is at 06:00 and sunset at 19:30. On the last day of the month, sunrise is at 06:45 and sunset at 18:25 CEST.

Sunshine

In Ciasna, the average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index in Ciasna is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

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

Frequently asked questions

September temperatures vary between a high-temperature of 18.9°C (66°F) and a low-temperature of 11.2°C (52.2°F).

The average relative humidity in September in Ciasna is 72%.

In Ciasna, Poland, during September, the rain falls for 14.1 days and regularly aggregates up to 45mm (1.77") of precipitation.

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

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

In September, the average day length in Ciasna is 12h and 38min.

In September, on the first day of the month, sunrise is at 06:00 and sunset at 19:30. On the last day of the month, in Ciasna, Poland, sunrise is at 06:45 and sunset at 18:25 CEST.

In Ciasna, the average sunshine duration in September is 8.4h.

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

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

18.9°C

12.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.7km/h

12.4km/h

13.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.5

13.8

15.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Ciasna, Poland

Average high temperature in September: 18.9°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 (-0.2°C).

Average low temperature in September: 11.2°C

The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).

Average pressure in September
Ciasna, 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 (1014.3mbar).

Average wind speed in September
Ciasna, Poland

Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is December (15.6km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).

Average humidity in September
Ciasna, Poland

Average humidity in September: 72%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).

Average rainfall in September
Ciasna, Poland

Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is November (28mm).

Average rainfall days in September
Ciasna, Poland

Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is June (21.1 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Ciasna, Poland

Average snowfall in September: 0mm

The month with the highest snowfall is January (152mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Ciasna, Poland

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Ciasna, 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 0min).

Average sunshine in September: 8h and 24min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).