September weather forecast and climate
Sulejewo, Poland

The first month of the autumn, September, is still a comfortable month in Sulejewo, Poland, with temperature in the range of an average high of 19.8°C (67.6°F) and an average low of 11.2°C (52.2°F).

Temperature

In Sulejewo, the average high-temperature decreases, from a moderately hot 25.7°C (78.3°F) in August, to a comfortable 19.8°C (67.6°F). In Sulejewo, the average low-temperature is 11.2°C (52.2°F).

Humidity

The average relative humidity in Sulejewo, Poland, is 71%.

Rainfall

In Sulejewo, in September, it is raining for 13.5 days, with typically 37mm (1.46") of accumulated precipitation. In Sulejewo, Poland, during the entire year, the rain falls for 166.7 days and collects up to 444mm (17.48") of precipitation.

Snowfall

June through September are months without snowfall in Sulejewo.

Daylight

In September, the average length of the day is 12.6h.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Sulejewo?

In September, in Sulejewo, Poland, the average high-temperature is 19.8°C (67.6°F), and the average low-temperature is 11.2°C (52.2°F).

What is the average humidity in September in Sulejewo?

In September, the average relative humidity in Sulejewo is 71%.

How much does it rain in Sulejewo in September?

In Sulejewo, Poland, during September, the rain falls for 13.5 days and regularly aggregates up to 37mm (1.46") of precipitation.

Does it snow in Sulejewo in September?

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

When it does not snow in Sulejewo?

June through September are months without snowfall.

What is the average length of the day in September in Sulejewo?

In September, the average length of the day in Sulejewo, Poland, is 12.6h.

How long on average sun shines in September in Sulejewo?

The average sunshine in September in Sulejewo, Poland, is 8.6h.

What is the UV index intensity in September in Sulejewo?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Sulejewo, Poland
  • Average high temperature in September: 19.8°C

The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (1.3°C).

  • Average low temperature in September: 11.2°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).

Average humidity in September - Sulejewo, Poland
  • Average humidity in September: 71%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (65%).

Average rainfall in September - Sulejewo, Poland
  • Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is November (18mm).

Average rainfall days in September - Sulejewo, Poland
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (9.7 days).

Average snowfall in September - Sulejewo, Poland
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (118mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September - Sulejewo, Poland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.5 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Sulejewo, Poland
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.7h).
The month with the shortest days is December (Average daylight: 7.8h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is January (Average sunshine: 3.4h).

Average UV index in September - Sulejewo, Poland
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).