September weather forecastRastnik, Bulgaria
September
Weather in September
September, the first month of the autumn in Rastnik, is also a moderately hot month, with an average temperature varying between 24.9°C (76.8°F) and 12.9°C (55.2°F).Temperature
The average high-temperature slightly decreases in September, shifting from a warm 29.8°C (85.6°F) in August to a still moderately hot 24.9°C (76.8°F). Nightly temperatures drop to an average low of 12.9°C (55.2°F) in September.Humidity
In Rastnik, the average relative humidity in September is 59%.Rainfall
In Rastnik, during September, the rain falls for 9.8 days and regularly aggregates up to 27mm (1.06") of precipitation. In Rastnik, during the entire year, the rain falls for 133.4 days and collects up to 458mm (18.03") of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 06:45 and sunset at 19:51. On the last day of the month, sunrise is at 07:15 and sunset at 19:02 EEST.
Sunshine
In September, the average sunshine is 10h.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 unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake protective steps - Preventing sun damage is advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rastnik, Bulgaria
- Average high temperature in September: 24.9°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is August (16.4°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in September
Rastnik, Bulgaria
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is July (1012.5mbar).
Average wind speed in September
Rastnik, Bulgaria
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is October (7.6km/h).
Average humidity in September
Rastnik, Bulgaria
- Average humidity in September: 59%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Rastnik, Bulgaria
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is June (71mm).
The driest month (with the least rainfall) is August (18mm).
Average rainfall days in September
Rastnik, Bulgaria
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Rastnik, Bulgaria
- Average snowfall in September: 0mm
The month with the highest snowfall is December (81mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Rastnik, Bulgaria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.4 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
Rastnik, Bulgaria
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Rastnik, Bulgaria
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is August (20.6 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in September
Rastnik, Bulgaria
- Average UV index in September: 4
The months with the highest UV index are June, 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
Rastnik, Bulgaria
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Rastnik, Bulgaria
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
