September weather forecast
Grzmięca, Poland

September

Weather in September

September, the first month of the autumn in Grzmięca, is still a comfortable month, with an average temperature fluctuating between 18.7°C (65.7°F) and 10.7°C (51.3°F).

Temperature

Arrival of September comes with a reduction in the average high-temperature, falling from a warm 24.3°C (75.7°F) in August to a comfortable 18.7°C (65.7°F). During the month of September, an average low-temperature of 10.7°C (51.3°F) is recorded.

Humidity

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

Rainfall

In Grzmięca, during September, the rain falls for 9.5 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, there are 141.7 rainfall days, and 351mm (13.82") of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In Grzmięca, the average length of the day in September is 12h and 41min.
On the first day of September, sunrise is at 05:52 and sunset at 19:31. On the last day of the month, sunrise is at 06:43 and sunset at 18:21 CEST.

Sunshine

In September, the average sunshine in Grzmięca is 8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 4 transforms into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What is the average September temperature in Grzmięca?
The average high-temperature, in September, in Grzmięca, is 18.7°C (65.7°F), while the average low-temperature is 10.7°C (51.3°F).
What is the average humidity in September in Grzmięca?
The average relative humidity in September is 72%.
How much does it rain in Grzmięca in September?
In Grzmięca, Poland, in September, it is raining for 9.5 days, with typically 22mm (0.87") of accumulated precipitation.
When it does not snow in Grzmięca?
In Grzmięca, Poland, snow does not fall in June through October.
How many hours of daylight does Grzmięca have in September?
The average day length in September is 12h and 41min.
When are sunrise and sunset in September in Grzmięca?
On the first day of September in Grzmięca, sunrise is at 05:52 and sunset at 19:31. On the last day of the month, sunrise is at 06:43 and sunset at 18:21 CEST.
How long on average sun shines in September in Grzmięca?
In September, the average sunshine duration in Grzmięca, Poland, is 8h.
How high is the UV index in September in Grzmięca?
In Grzmięca, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Grzmięca, Poland
Average temperature in September
Grzmięca, Poland
  • Average high temperature in September: 18.7°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (-0.1°C).

  • Average low temperature in September: 10.7°C

The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).

Average pressure in September - Grzmięca, Poland
Average pressure in September
Grzmięca, Poland
  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is October (1017.2mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).

Average wind speed in September - Grzmięca, Poland
Average wind speed in September
Grzmięca, Poland
  • Average wind speed in September: 12.1km/h

The windiest month (with the highest average wind speed) is December (14.4km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).

Average humidity in September - Grzmięca, Poland
Average humidity in September
Grzmięca, Poland
  • Average humidity in September: 72%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and August (68%).

Average rainfall in September - Grzmięca, Poland
Average rainfall in September
Grzmięca, Poland
  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days in September - Grzmięca, Poland
Average rainfall days in September
Grzmięca, Poland
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (9.3 days).

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

The month with the highest snowfall is January (87mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in September - Grzmięca, Poland
Average snowfall days in September
Grzmięca, 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 - Grzmięca, Poland
Average daylight in September /
Average sunshine in September
Grzmięca, Poland
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in September - Grzmięca, Poland
Average sunshine days in September
Grzmięca, Poland
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is February (10.4 days).

Average UV index in September - Grzmięca, Poland
Average UV index in September
Grzmięca, 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 - Grzmięca, Poland
Average cloud cover in September
Grzmięca, Poland
  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September - Grzmięca, Poland
Average visibility in September
Grzmięca, Poland
  • Average visibility in September: 9km

The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).

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