September weather forecastNerwiki, Poland

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Nerwiki, Poland, with an average temperature fluctuating between 18.3°C (64.9°F) and 9.8°C (49.6°F).

Temperature

During the transition into September, Nerwiki observes a decrease in the average high-temperature, falling from a warm 23.7°C (74.7°F) in August to a comfortable 18.3°C (64.9°F). Throughout September, Nerwiki experiences a low-temperature average of 9.8°C (49.6°F).

Humidity

The average relative humidity in September in Nerwiki is 75%.

Rainfall

In September, in Nerwiki, the rain falls for 13.5 days. Throughout September, 29mm (1.14") of precipitation is accumulated. Throughout the year, there are 155.1 rainfall days, and 414mm (16.3") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 42min.
On the first day of September in Nerwiki, sunrise is at 05:46 and sunset at 19:28. On the last day of the month, sunrise is at 06:39 and sunset at 18:16 CEST.

Sunshine

In September, the average sunshine is 7.7h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 3 in September transforms into this advice:
Take precautions - Protection against sunburn is recommended. To guard against the harmful effects of the Sun, minimize exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

The high-temperature, in September, in Nerwiki, records 18.3°C (64.9°F), while the low-temperature is 9.8°C (49.6°F).

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

In Nerwiki, Poland, during September, the rain falls for 13.5 days and regularly aggregates up to 29mm (1.14") of precipitation.

June through September are months without snowfall.

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

The average day length in September in Nerwiki, Poland, is 12h and 42min.

On the first day of September in Nerwiki, Poland, sunrise is at 05:46 and sunset at 19:28. On the last day of the month, sunrise is at 06:39 and sunset at 18:16 CEST.

In Nerwiki, Poland, the average sunshine duration in September is 7.7h.

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

Average temperature in September
Nerwiki, Poland

  • Average high temperature in September: 18.3°C

The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-1.1°C).

  • Average low temperature in September: 9.8°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-4.7°C).

Average pressure in September
Nerwiki, Poland

  • Average pressure in September: 1016.6mbar

The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).

Average wind speed in September
Nerwiki, Poland

  • Average wind speed in September: 11.3km/h

The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in September
Nerwiki, Poland

  • Average humidity in September: 75%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (70%).

Average rainfall in September
Nerwiki, Poland

  • Average rainfall in September: 29mm

The wettest month (with the highest rainfall) is July (53mm).
The driest months (with the least rainfall) are March and April (22mm).

Average rainfall days in September
Nerwiki, Poland

  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is February (8.1 days).

Average snowfall in September
Nerwiki, Poland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (132mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Nerwiki, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Nerwiki, 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 24min).

  • Average sunshine in September: 7h and 42min

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
Nerwiki, Poland

  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (9 days).

Average UV index in September
Nerwiki, Poland

  • Average UV index in September: 3

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, February, November and December (UV index 1).

Average cloud cover in September
Nerwiki, Poland

  • Average cloud cover in September: 44

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in September
Nerwiki, 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).