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
The arrival of September indicates a decrease in the average high-temperature, moving from 28.3°C (82.9°F) in August to a still moderately hot 23.2°C (73.8°F). An average low-temperature of 11.9°C (53.4°F) is expected during September.Humidity
The average relative humidity in September in Roman, Bulgaria, is 60%.Rainfall
September is the month with the least rainfall in Roman. Rain falls for 9.1 days and accumulates 28mm (1.1") of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 06:49 and sunset at 19:59. On the last day of the month, sunrise is at 07:21 and sunset at 19:07 EEST.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Roman, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Roman have in September?
How high is the UV index in September?
Average temperature in September
Roman, Bulgaria
- Average high temperature in September: 23.2°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in September
Roman, Bulgaria
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The months with the lowest atmospheric pressure are May, June and July (1013.8mbar).
Average wind speed in September
Roman, Bulgaria
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is March (9.5km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in September
Roman, Bulgaria
- Average humidity in September: 60%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Roman, Bulgaria
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is June (90mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Roman, Bulgaria
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Roman, Bulgaria
- Average snowfall in September: 0mm
The month with the highest snowfall is January (196mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Roman, Bulgaria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 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
Roman, Bulgaria
- Average daylight in September: 12h and 3min
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: 9h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Roman, Bulgaria
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Roman, Bulgaria
- 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
Roman, Bulgaria
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Roman, 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).
