September weather forecastInwałd, Poland

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Inwałd, Poland, with an average temperature ranging between min 10.6°C (51.1°F) and max 19.4°C (66.9°F).

Temperature

The beginning of September marks a decrease in the average high-temperature, transitioning from a moderately hot 25.1°C (77.2°F) in August to a comfortable 19.4°C (66.9°F). During the month of September, the temperature in Inwałd generally drops to a low average of 10.6°C (51.1°F).

Humidity

In September, the average relative humidity in Inwałd is 73%.

Rainfall

In Inwałd, in September, during 12.4 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Inwałd, during the entire year, the rain falls for 158.1 days and collects up to 492mm (19.37") of precipitation.

Snowfall

In Inwałd, Poland, snow does not fall in June through September.

Daylight

In Inwałd, Poland, the average length of the day in September is 12h and 37min.
On the first day of the month, sunrise is at 05:58 and sunset at 19:26. On the last day of September, in Inwałd, sunrise is at 06:41 and sunset at 18:22 CEST.

Sunshine

In Inwałd, the average sunshine in September is 8.4h.

UV index

In Inwałd, Poland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during September leads to these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

The average high-temperature and low-temperature during September are 19.4°C (66.9°F) and 10.6°C (51.1°F) respectively.

In September, the average relative humidity is 73%.

In Inwałd, in September, it is raining for 12.4 days, with typically 41mm (1.61") of accumulated precipitation.

In Inwałd, Poland, snow does not fall in June through September.

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

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

On the first day of September in Inwałd, Poland, sunrise is at 05:58 and sunset at 19:26. On the last day of the month, sunrise is at 06:41 and sunset at 18:22 CEST.

In Inwałd, the average sunshine duration in September is 8.4h.

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Inwałd, Poland

  • Average high temperature in September: 19.4°C

The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (0.5°C).

  • Average low temperature in September: 10.6°C

The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in September
Inwałd, Poland

  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).

Average wind speed in September
Inwałd, Poland

  • Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (9.2km/h).

Average humidity in September
Inwałd, Poland

  • Average humidity in September: 73%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (67%).

Average rainfall in September
Inwałd, Poland

  • Average rainfall in September: 41mm

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

Average rainfall days in September
Inwałd, Poland

  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (9.7 days).

Average snowfall in September
Inwałd, Poland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (160mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Inwałd, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Inwałd, 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 24min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).

Average sunshine days in September
Inwałd, Poland

  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in September
Inwałd, Poland

  • Average UV index in September: 4

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

Average cloud cover in September
Inwałd, Poland

  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Inwałd, Poland

  • Average visibility in September: 9km

The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (8km).