September weather forecastBiser, Bulgaria
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Biser, Bulgaria, with temperature in the range of an average low of 14.8°C (58.6°F) and an average high of 26.4°C (79.5°F).Temperature
Biser experiences a temperature shift at the start of September, with average high-temperatures adjusting from a hot 31.8°C (89.2°F) in August to a moderately hot 26.4°C (79.5°F). During September, Biser consistently records a temperature low averaging a mild 14.8°C (58.6°F).Humidity
The average relative humidity in September is 57%.Rainfall
In Biser, Bulgaria, in September, it is raining for 7.8 days, with typically 28mm (1.1") of accumulated precipitation. In Biser, during the entire year, the rain falls for 111.8 days and collects up to 370mm (14.57") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Biser is 12h and 29min.On the first day of September, sunrise is at 06:42 and sunset at 19:49. On the last day of the month, sunrise is at 07:12 and sunset at 18:59 EEST.
Sunshine
In September, the average sunshine in Biser is 10.1h.UV index
The average daily maximum UV index in September in Biser is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Ensure safety - Sun damage prevention is strongly urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Biser, Bulgaria
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 14.8°C
The month with the highest average low temperature is August (18°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure in September
Biser, Bulgaria
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is July (1012.3mbar).
Average wind speed in September
Biser, Bulgaria
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).
Average humidity in September
Biser, Bulgaria
- Average humidity in September: 57%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Biser, Bulgaria
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is June (47mm).
The driest month (with the least rainfall) is August (17mm).
Average rainfall days in September
Biser, Bulgaria
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in September
Biser, Bulgaria
- Average snowfall in September: 0mm
The month with the highest snowfall is January (55mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Biser, Bulgaria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Biser, Bulgaria
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Biser, Bulgaria
- Average sunshine days in September: 21.3 days
The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is June (15.9 days).
Average UV index in September
Biser, Bulgaria
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Biser, Bulgaria
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Biser, Bulgaria
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
