September weather forecastKłączno, Poland

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Kłączno, Poland, with an average temperature fluctuating between 18.1°C (64.6°F) and 10°C (50°F).

Temperature

September brings a drop in Kłączno's average high-temperature, falling from a moderately hot 23.2°C (73.8°F) in August to a comfortable 18.1°C (64.6°F). In September, the temperature drops to an average of 10°C (50°F) at night.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In September, the rain falls for 9.7 days. Throughout September, 22mm (0.87") of precipitation is accumulated. Throughout the year, in Kłączno, Poland, there are 129.1 rainfall days, and 321mm (12.64") of precipitation is accumulated.

Snowfall

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

Daylight

In Kłączno, the average length of the day in September is 12h and 42min.
On the first day of September in Kłączno, sunrise is at 05:58 and sunset at 19:40. On the last day of the month, sunrise is at 06:50 and sunset at 18:28 CEST.

Sunshine

The average sunshine in September in Kłączno is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

The high-temperature in Kłączno, Poland, during September is 18.1°C (64.6°F) and the low-temperature is 10°C (50°F).

In September, the average relative humidity is 75%.

In Kłączno, Poland, in September, it is raining for 9.7 days, with typically 22mm (0.87") of accumulated precipitation.

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

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

The average day length in September in Kłączno is 12h and 42min.

In September, on the first day of the month, sunrise is at 05:58 and sunset at 19:40. On the last day of the month, sunrise is at 06:50 and sunset at 18:28 CEST.

In Kłączno, Poland, the average sunshine duration in September is 8.2h.

In Kłączno, Poland, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kłączno, Poland

  • Average high temperature in September: 18.1°C

The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (-0.2°C).

  • Average low temperature in September: 10°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
Kłączno, Poland

  • Average pressure in September: 1016.6mbar

The month with the highest atmospheric pressure is October (1016.9mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).

Average wind speed in September
Kłączno, Poland

  • Average wind speed in September: 13.3km/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 (11.8km/h).

Average humidity in September
Kłączno, Poland

  • Average humidity in September: 75%

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

Average rainfall in September
Kłączno, Poland

  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in September
Kłączno, Poland

  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
Kłączno, Poland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (76mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Kłączno, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 42min

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 12min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in September
Kłączno, Poland

  • Average sunshine days in September: 19.2 days

The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is February (12 days).

Average UV index in September
Kłączno, Poland

  • Average UV index in September: 4

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 and November (UV index 1).

Average cloud cover in September
Kłączno, Poland

  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Kłączno, Poland

  • Average visibility in September: 9km

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