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
A shift in Cisna's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 24.2°C (75.6°F) to a refreshing 18.6°C (65.5°F). During September, Cisna records an average temperature of 8.3°C (46.9°F) at night.Humidity
In September, the average relative humidity in Cisna is 77%.Rainfall
The month with the least rainfall in Cisna is September, when the rain falls for 10.5 days and typically collects 27mm (1.06") of precipitation.Snowfall
June through September are months without snowfall in Cisna, Poland.Daylight
The average length of the day in September in Cisna is 12h and 36min.On the first day of September, sunrise is at 05:47 and sunset at 19:13. On the last day of the month, sunrise is at 06:29 and sunset at 18:11 CEST.
Sunshine
In September, the average sunshine in Cisna is 7.9h.UV index
In Cisna, the average daily maximum UV index in September is 3. 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: The daily maximum UV index of 3 in September interprets into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Cisna?
What is the average humidity in September in Cisna?
What is the driest month in Cisna?
How many days does it rain in September in Cisna?
When it does not snow in Cisna?
Does it snow in Cisna in September?
How many hours of daylight does Cisna have in September?
When is the sunrise / sunset in September in Cisna?
How long on average sun shines in September in Cisna?
What is the UV index reading in September in Cisna?
Average temperature in September
Cisna, Poland
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is July (11.9°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in September
Cisna, Poland
- Average pressure in September: 1017.7mbar
The months with the highest atmospheric pressure are October and December (1019.2mbar).
The month with the lowest atmospheric pressure is June (1014.3mbar).
Average wind speed in September
Cisna, Poland
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is December (13.6km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in September
Cisna, Poland
- Average humidity in September: 77%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Cisna, Poland
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is May (76mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in September
Cisna, Poland
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Cisna, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (220mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Cisna, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cisna, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- 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 February (Average sunshine: 3h and 0min).
Average sunshine days in September
Cisna, Poland
- Average sunshine days in September: 17 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in September
Cisna, Poland
- Average UV index in September: 3
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
Cisna, Poland
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Cisna, Poland
- Average visibility in September: 8km
The months with the highest visibility are April and August (9km).
The months with the lowest visibility are January, February and December (7km).
