Weather in September at Timisoara
The month of September is characterized by falling daily high temperatures, with daily highs decreasing from 78°F to 70°F over the course of the month, exceeding 88°F or dropping below 60°F only one day in ten. Daily low temperatures range from 49°F to 56°F, falling below 41°F or exceeding 62°F only one day in ten.
Over the course of September, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1:32 hours, implying an average day-over-day decrease of 3.1 minutes. The shortest day of the month is September 30 with 11:44 hours of daylight; the longest day is September 1 with 13:16 hours of daylight. The earliest sunrise is at 6:56am on September 1; the latest sunset is at 8:13pm on September 1; the latest sunrise is at 7:32am on September 30; the earliest sunset is at 7:16pm on September 30.
The median cloud cover ranges from 45% (partly cloudy) to 55% (partly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 9% from the start to the end of the month. On September 15, a representative day, the sky is clear or mostly clear 32% of the time, partly cloudy 16% of the time, and mostly cloudy or overcast 26% of the time.
The average probability that some form of precipitation will be observed in a given day is 35%, with little variation over the course of the month. Throughout September, the most common forms of precipitation are moderate rain, light rain, and thunderstorms.
Moderate rain is the most severe precipitation observed during 40% of those days with precipitation. It is most likely around September 24, when it is observed during 16% of all days.
Light rain is the most severe precipitation observed during 28% of those days with precipitation. It is most likely around September 30, when it is observed during 12% of all days.
Thunderstorms are the most severe precipitation observed during 26% of those days with precipitation. They are most likely around September 1, when it is observed during 13% of all days.
The relative humidity typically ranges from 43% (comfortable) to 99% (very humid) over the course of a typical September, rarely dropping below 28% (dry) and reaching as high as 100% (very humid). The air is driest around September 1, at which time the relative humidity drops below 49% (comfortable) three days out of four; it is most humid around September 27, rising above 100% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical September, the dew point typically varies from 45°F (dry) to 59°F (comfortable) and is rarely below 37°F (dry) or above 65°F (muggy).
The time of the month between September 1 and September 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of September typical wind speeds vary from 0 mph to 10 mph (calm to gentle breeze), rarely exceeding 17 mph (moderate breeze).
The highest average wind speed of 4 mph (light breeze) occurs around September 6, at which time the average daily maximum wind speed is 10 mph (gentle breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around September 19, at which time the average daily maximum wind speed is 9 mph (gentle breeze).
The wind is most often out of the east (14% of the time). The wind is least often out of the north east (4% of the time), south west (4% of the time), and south east (4% of the time).