September weather forecastGumna, Poland

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Gumna, Poland, with an average temperature ranging between min 9.3°C (48.7°F) and max 18.3°C (64.9°F).

Temperature

The transition into September involves a decrease in the average high-temperature, falling from a warm 24°C (75.2°F) in August to a comfortable 18.3°C (64.9°F). In Gumna, September nights cool down to an average of 9.3°C (48.7°F).

Humidity

The average relative humidity in September in Gumna is 76%.

Rainfall

In September, in Gumna, the rain falls for 10.8 days. Throughout September, 34mm (1.34") of precipitation is accumulated. In Gumna, during the entire year, the rain falls for 143.9 days and collects up to 479mm (18.86") of precipitation.

Snowfall

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

Daylight

In Gumna, the average length of the day in September is 12h and 37min.
On the first day of the month, sunrise is at 06:01 and sunset at 19:28. On the last day of September, sunrise is at 06:44 and sunset at 18:25 CEST.

Sunshine

In Gumna, the average sunshine in September is 8.3h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, an average UV index of 3 transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

The average high-temperature and low-temperature in Gumna, Poland, during September are 18.3°C (64.9°F) and 9.3°C (48.7°F) respectively.

The average relative humidity in September in Gumna is 76%.

In Gumna, in September, it is raining for 10.8 days, with typically 34mm (1.34") of accumulated precipitation.

June through September are months without snowfall in Gumna.

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

In Gumna, the average day length in September is 12h and 37min.

On the first day of September, sunrise is at 06:01 and sunset at 19:28. On the last day of the month, sunrise is at 06:44 and sunset at 18:25 CEST.

In Gumna, the average sunshine duration in September is 8.3h.

The average daily maximum UV index in September in Gumna, Poland, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Gumna, Poland

  • Average high temperature in September: 18.3°C

The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (-0.3°C).

  • Average low temperature in September: 9.3°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).

Average pressure in September
Gumna, Poland

  • Average pressure in September: 1017.8mbar

The months with the highest atmospheric pressure are October and December (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).

Average wind speed in September
Gumna, Poland

  • Average wind speed in September: 9.1km/h

The windiest month (with the highest average wind speed) is December (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).

Average humidity in September
Gumna, Poland

  • Average humidity in September: 76%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Gumna, Poland

  • Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is November (25mm).

Average rainfall days in September
Gumna, Poland

  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in September
Gumna, Poland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (193mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Gumna, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

Average sunshine days in September
Gumna, Poland

  • Average sunshine days in September: 18.1 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is February (9.5 days).

Average UV index in September
Gumna, Poland

  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).

Average cloud cover in September
Gumna, Poland

  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Gumna, Poland

  • Average visibility in September: 9km

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