Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
As September begins, there is a decrease in the average high-temperature, falling from a moderately hot 25.3°C (77.5°F) in August to a comfortable 19.2°C (66.6°F). Throughout the month of September, Knaj witnesses an average temperature of 10.7°C (51.3°F).Humidity
In September, the average relative humidity is 72%.Rainfall
In Knaj, during September, the rain falls for 13.6 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, there are 168.5 rainfall days, and 562mm (22.13") of precipitation is accumulated.Snowfall
In Knaj, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 37min.On the first day of September in Knaj, 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.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Knaj, Poland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Knaj?
What is the average humidity in September in Knaj?
How many days does it rain in September in Knaj?
When it does not snow in Knaj?
Does it snow in Knaj in September?
How many hours of daylight does Knaj have in September?
When are sunrise and sunset in September in Knaj?
How long on average sun shines in September in Knaj?
What is the UV index intensity in September in Knaj?
Average temperature in September
Knaj, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (0.5°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Knaj, Poland
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).
Average wind speed in September
Knaj, Poland
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in September
Knaj, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Knaj, Poland
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is May (76mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in September
Knaj, Poland
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in September
Knaj, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (201mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Knaj, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Knaj, Poland
- Average daylight in September: 12h and 4min
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 2min
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 36min).
Average sunshine days in September
Knaj, Poland
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in September
Knaj, Poland
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Knaj, Poland
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Knaj, 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).
