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
Derc's transition into September involves a shift in temperature, receding from a warm 23.7°C (74.7°F) in August to a comfortable 18.3°C (64.9°F). During the month of September, an average low-temperature of 9.8°C (49.6°F) is recorded.Humidity
In Derc, the average relative humidity in September is 75%.Rainfall
In Derc, Poland, during September, the rain falls for 13.5 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, in Derc, there are 155.1 rainfall days, and 414mm (16.3") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Derc, Poland.Daylight
In September, the average length of the day is 12h and 42min.On the first day of the month, sunrise is at 05:46 and sunset at 19:27. On the last day of September, in Derc, sunrise is at 06:38 and sunset at 18:16 CEST.
Sunshine
In September, the average sunshine in Derc is 7.7h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Derc?
What is the average humidity in September in Derc?
How many days does it rain in September in Derc?
When it does not snow in Derc?
Does it snow in Derc in September?
How many hours of daylight does Derc have in September?
When are sunrise and sunset in September in Derc?
How many hours of sunshine does Derc have in September?
What is the UV index intensity in September in Derc?
Average temperature in September
Derc, Poland
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-4.7°C).
Average pressure in September
Derc, Poland
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in September
Derc, Poland
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Derc, Poland
- Average humidity in September: 75%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Derc, Poland
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is July (53mm).
The driest months (with the least rainfall) are March and April (22mm).
Average rainfall days in September
Derc, Poland
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in September
Derc, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (132mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Derc, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Derc, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Derc, Poland
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Derc, Poland
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Derc, Poland
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Derc, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
