September weather forecastSzumki, Poland

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Szumki, Poland, with an average temperature ranging between max 18.4°C (65.1°F) and min 9.7°C (49.5°F).

Temperature

September's arrival corresponds with a decrease in average high-temperatures, from August's warm 24.1°C (75.4°F) to an enjoyable 18.4°C (65.1°F). Szumki experiences a consistent average temperature of 9.7°C (49.5°F) throughout the nights in September.

Humidity

The average relative humidity in September in Szumki, Poland, is 75%.

Rainfall

In Szumki, in September, during 12.6 rainfall days, 38mm (1.5") of precipitation is typically accumulated. Throughout the year, in Szumki, Poland, there are 163.9 rainfall days, and 512mm (20.16") of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Szumki.

Daylight

The average length of the day in September in Szumki is 12h and 40min.
On the first day of the month, sunrise is at 05:39 and sunset at 19:16. On the last day of September, sunrise is at 06:28 and sunset at 18:07 CEST.

Sunshine

In September, the average sunshine is 7.6h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

The average high-temperature, in September, in Szumki, is 18.4°C (65.1°F), while the average low-temperature is 9.7°C (49.5°F).

In September, the average relative humidity in Szumki is 75%.

In Szumki, Poland, in September, during 12.6 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

May through September are months without snowfall in Szumki, Poland.

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

The average day length in September in Szumki is 12h and 40min.

On the first day of September, sunrise is at 05:39 and sunset at 19:16. On the last day of the month, sunrise is at 06:28 and sunset at 18:07 CEST.

In Szumki, the average sunshine duration in September is 7.6h.

In Szumki, Poland, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health risk 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Szumki, Poland

  • Average high temperature in September: 18.4°C

The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (-1.4°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).

Average pressure in September
Szumki, Poland

  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is October (1018.3mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).

Average wind speed in September
Szumki, Poland

  • Average wind speed in September: 11.8km/h

The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).

Average humidity in September
Szumki, Poland

  • Average humidity in September: 75%

The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (70%).

Average rainfall in September
Szumki, Poland

  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is April (27mm).

Average rainfall days in September
Szumki, Poland

  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Szumki, Poland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (187mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Szumki, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).

  • Average sunshine in September: 7h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).

Average sunshine days in September
Szumki, Poland

  • Average sunshine days in September: 14 days

The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is January (6.4 days).

Average UV index in September
Szumki, Poland

  • Average UV index in September: 3

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

Average cloud cover in September
Szumki, Poland

  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Szumki, Poland

  • Average visibility in September: 9km

The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).