September weather forecast
Kosny, Poland

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Weather in September

The first month of the autumn, September, is also an enjoyable month in Kosny, Poland, with an average temperature varying between 10.8°C (51.4°F) and 19.2°C (66.6°F).

Temperature

September comes with a decrease in the average high-temperature, falling from a warm 25.5°C (77.9°F) in August to an enjoyable 19.2°C (66.6°F). Kosny's nights in September cool down to an average low-temperature of 10.8°C (51.4°F).

Humidity

In September, the average relative humidity is 72%.

Rainfall

In Kosny, in September, during 12 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Kosny, Poland, during the entire year, the rain falls for 144.9 days and collects up to 428mm (16.85") of precipitation.

Snowfall

May through September are months without snowfall in Kosny.

Daylight

In Kosny, the average length of the day in September is 12h and 38min.
On the first day of September in Kosny, sunrise is at 05:48 and sunset at 19:21. On the last day of the month, sunrise is at 06:35 and sunset at 18:14 CEST.

Sunshine

The average sunshine in September is 7.8h.

UV index

The average daily maximum UV index in September in Kosny is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the temperature in September in Kosny?

During September, Kosny experiences an average high-temperature of 19.2°C (66.6°F) and a low-temperature of 10.8°C (51.4°F).

What is the average humidity in September in Kosny?

The average relative humidity in September is 72%.

How much does it rain in Kosny in September?

In Kosny, Poland, in September, during 12 rainfall days, 34mm (1.34") of precipitation is typically accumulated.

When it does not snow in Kosny?

May through September are months without snowfall.

Does it snow in Kosny in September?

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

What is the average length of the day in September in Kosny?

In September, the average day length is 12h and 38min.

When are sunrise and sunset in September in Kosny?

On the first day of September in Kosny, sunrise is at 05:48 and sunset at 19:21. On the last day of the month, sunrise is at 06:35 and sunset at 18:14 CEST.

How long on average sun shines in September in Kosny?

In Kosny, Poland, the average sunshine duration in September is 7.8h.

What is the UV index intensity in September in Kosny?

In September, the average daily maximum UV index in Kosny, Poland, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
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
Kosny, Poland

Average temperature in September - Kosny, Poland
  • Average high temperature in September: 19.2°C

The warmest month (with the highest average high temperature) is August (25.5°C).
The month with the lowest average high temperature is January (-0.4°C).

  • Average low temperature in September: 10.8°C

The months with the highest average low temperature are July and August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

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Average pressure in September
Kosny, Poland

Average pressure in September - Kosny, Poland
  • Average pressure in September: 1017.4mbar

The month with the highest atmospheric pressure is October (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).

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Average wind speed in September
Kosny, Poland

Average wind speed in September - Kosny, Poland
  • Average wind speed in September: 10.8km/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 (9.7km/h).

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Average humidity in September
Kosny, Poland

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

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).

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Average rainfall in September
Kosny, Poland

Average rainfall in September - Kosny, Poland
  • Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is November (23mm).

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Average rainfall days in September
Kosny, Poland

Average rainfall days in September - Kosny, Poland
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (7.2 days).

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Average snowfall in September
Kosny, Poland

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

The month with the highest snowfall is January (125mm).
The months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in September
Kosny, Poland

Average snowfall days in September - Kosny, Poland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

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

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in September
Kosny, Poland

Average sunshine days in September - Kosny, Poland
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is July (10.5 days).

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Average UV index in September
Kosny, Poland

Average UV index in September - Kosny, Poland
  • Average UV index in September: 4

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

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Average cloud cover in September
Kosny, Poland

Average cloud cover in September - Kosny, Poland
  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in September
Kosny, Poland

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

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

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Kosny, Poland

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