September weather forecastDeva, Romania
September
Weather in September
September ushers in autumn with a noticeable decrease in temperature, with highs falling to 22°C (71.6°F), while lows remaining at 9.3°C (48.7°F). From hot summer days, the weather shifts to cooler, more comfortable conditions. The length of daylight begins to shorten as summer transitions into autumn. The overall weather pattern changes drastically as regular rainfall and the return of the cloud cover from previous months are observed. The city embarks in a mesmerising transformation as leaves begin to change colour, indicating the onset of fall.Temperature
With September's onset, the weather shows a temperature decrease, transitioning from a moderately hot 28.1°C (82.6°F) in August to a pleasant 22°C (71.6°F). September nights see a notable contrast from daytime highs, with the nighttime temperature averaging at a chilly 9.3°C (48.7°F).Humidity
In Deva, the average relative humidity in September is 67%.Rainfall
September is the month with the least rainfall. Rain falls for 8.2 days and accumulates 18mm (0.71") of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:49 and sunset at 20:06. On the last day of the month, sunrise is at 07:26 and sunset at 19:10 EEST.
Sunshine
The average sunshine in September is 9.6h.UV index
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 rays for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Heed the precautions - It is counselled to guard against solar damage. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deva, Romania
- Average high temperature in September: 22°C
The warmest month (with the highest average high temperature) is August (28.1°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).
Average pressure in September
Deva, Romania
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).
Average wind speed in September
Deva, Romania
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is March (6.9km/h).
The calmest month (with the lowest average wind speed) is August (4.9km/h).
Average humidity in September
Deva, Romania
- Average humidity in September: 67%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Deva, Romania
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is June (57mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in September
Deva, Romania
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is September (8.2 days).
Average snowfall in September
Deva, Romania
- Average snowfall in September: 0mm
The month with the highest snowfall is December (64mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Deva, Romania
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 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
Deva, Romania
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Deva, Romania
- Average sunshine days in September: 19 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Deva, Romania
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Deva, Romania
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Deva, Romania
- 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).
