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
The shift from August to September corresponds with a decrease in the average high-temperature, down to a comfortable 18.5°C (65.3°F) from a warm 24.8°C (76.6°F). During September, Dereczanka's temperature averages to a chilly 9.9°C (49.8°F) at night.Humidity
In Dereczanka, the average relative humidity in September is 74%.Rainfall
In Dereczanka, in September, during 11.4 rainfall days, 30mm (1.18") of precipitation is typically accumulated. Throughout the year, in Dereczanka, there are 143.7 rainfall days, and 388mm (15.28") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 05:38 and sunset at 19:13. On the last day of the month, sunrise is at 06:26 and sunset at 18:05 CEST.
Sunshine
The average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Dereczanka?
What is the average humidity in September in Dereczanka?
How many days does it rain in September in Dereczanka?
When it does not snow in Dereczanka?
Does it snow in Dereczanka in September?
What is the average length of the day in September in Dereczanka?
When are sunrise and sunset in September in Dereczanka?
How long on average sun shines in September in Dereczanka?
How high is the UV index in September in Dereczanka?
Average temperature in September
Dereczanka, Poland
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in September
Dereczanka, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in September
Dereczanka, Poland
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in September
Dereczanka, Poland
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Dereczanka, Poland
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is May (59mm).
The driest months (with the least rainfall) are February and November (21mm).
Average rainfall days in September
Dereczanka, Poland
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Dereczanka, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (114mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Dereczanka, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dereczanka, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Dereczanka, Poland
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Dereczanka, Poland
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Dereczanka, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Dereczanka, 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).
