September weather forecastGnjilan, Serbia
September
Weather in September
September, the first month of the autumn in Gnjilan, is also an agreeable month, with an average temperature ranging between max 21.5°C (70.7°F) and min 9.5°C (49.1°F).Temperature
In September, the average high-temperature decreases from a moderately hot 26.7°C (80.1°F) in August to a pleasant 21.5°C (70.7°F). Gnjilan records a consistent low-temperature average of 9.5°C (49.1°F) during September, indicating a significant difference from the daytime heat.Humidity
The average relative humidity in September is 67%.Rainfall
In Gnjilan, in September, during 11.8 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, there are 155.9 rainfall days, and 557mm (21.93") of precipitation is accumulated.Snowfall
In Gnjilan, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 05:54 and sunset at 19:04. On the last day of September, in Gnjilan, sunrise is at 06:26 and sunset at 18:12 CEST.
Sunshine
In Gnjilan, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Take necessary precautions - Defending against sun damage is advocated. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gnjilan, Serbia
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is August (26.7°C).
The month with the lowest average high temperature is January (1.4°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).
Average pressure in September
Gnjilan, Serbia
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is May (1014mbar).
Average wind speed in September
Gnjilan, Serbia
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is March (9.3km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Gnjilan, Serbia
- Average humidity in September: 67%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Gnjilan, Serbia
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (73mm).
The driest month (with the least rainfall) is August (33mm).
Average rainfall days in September
Gnjilan, Serbia
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Gnjilan, Serbia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (162mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Gnjilan, Serbia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.5 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
Gnjilan, Serbia
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Gnjilan, Serbia
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is August (19.3 days).
The month with the least sunshine days is May (8.2 days).
Average UV index in September
Gnjilan, Serbia
- 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 January, February, November and December (UV index 2).
Average cloud cover in September
Gnjilan, Serbia
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Gnjilan, Serbia
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).





