September weather forecastPolena, Bulgaria
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Polena, Bulgaria, with temperature in the range of an average low of 9.4°C (48.9°F) and an average high of 22.3°C (72.1°F).Temperature
The start of September signals a decrease in the average high-temperature, transitioning from a moderately hot 27.7°C (81.9°F) in August to a pleasant 22.3°C (72.1°F). Polena demonstrates a significant disparity from daytime highs throughout the month of September, with an average nighttime temperature of 9.4°C (48.9°F).Humidity
In Polena, the average relative humidity in September is 63%.Rainfall
In Polena, in September, during 9.8 rainfall days, 29mm (1.14") of precipitation is typically accumulated. In Polena, during the entire year, the rain falls for 142.3 days and collects up to 418mm (16.46") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Polena, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 06:53 and sunset at 20:01. On the last day of the month, sunrise is at 07:23 and sunset at 19:10 EEST.
Sunshine
In September, the average sunshine in Polena is 9.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Polena, Bulgaria
- Average high temperature in September: 22.3°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-4.4°C).
Average pressure in September
Polena, Bulgaria
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The months with the lowest atmospheric pressure are May, June and July (1013.9mbar).
Average wind speed in September
Polena, Bulgaria
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Polena, Bulgaria
- Average humidity in September: 63%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (58%).
Average rainfall in September
Polena, Bulgaria
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days in September
Polena, Bulgaria
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Polena, Bulgaria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (67mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Polena, Bulgaria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Polena, 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: 9h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).
Average sunshine days in September
Polena, Bulgaria
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in September
Polena, Bulgaria
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Polena, Bulgaria
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Polena, Bulgaria
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is January (8km).
