This report describes the typical weather at the Chennai International Airport (Chennai/Madras, India) weather station over the course of an average November. It is based on the historical records from 1996 to 2012. Earlier records are either unavailable or unreliable.
Chennai/Madras has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by croplands (60%), oceans and seas (33%), built-up areas (3%), and lakes and rivers (3%).
The month of November is characterized by gradually falling daily high temperatures, with daily highs around 85°F throughout the month, exceeding 90°F or dropping below 81°F only one day in ten.
Over the course of November, the length of the day is essentially constant. The shortest day of the month is November 30 with 11:25 hours of daylight; the longest day is November 1 with 11:40 hours of daylight.
The earliest sunrise is at 6:03am on November 1; the latest sunset is at 5:43pm on November 1; the latest sunrise is at 6:15am on November 30; the earliest sunset is at 5:39pm on November 19.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 59% (partly cloudy) to 65% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 6% from the start to the end of the month.
On November 15, a representative day, the sky is clear or mostly clear 19% of the time, partly cloudy 42% of the time, and mostly cloudy or overcast 37% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around November 1, occurring in 53% of days. Precipitation is least likely around November 30, occurring in 43% of days.
Throughout November, the most common forms of precipitation are thunderstorms, moderate rain, drizzle, and light rain.
Thunderstorms are the most severe precipitation observed during 31% of those days with precipitation. They are most likely around November 1, when it is observed during 20% of all days.
Moderate rain is the most severe precipitation observed during 27% of those days with precipitation. It is most likely around November 21, when it is observed during 15% of all days.
Drizzle is the most severe precipitation observed during 22% of those days with precipitation. It is most likely around November 1, when it is observed during 11% of all days.
Light rain is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around November 18, when it is observed during 9% of all days.
Either snow is exceptionally unlikely to fall at this location in November or this station does not reliably report precipitation types.
The relative humidity typically ranges from 64% (mildly humid) to 95% (very humid) over the course of a typical November, rarely dropping below 48% (comfortable) and reaching as high as 100% (very humid).
The air is driest around November 21, at which time the relative humidity drops below 72% (humid) three days out of four; it is most humid around November 1, rising above 94% (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 November, the dew point typically varies from 68°F (muggy) to 77°F (oppressive) and is rarely below 63°F (mildy humid) or above 79°F (oppressive).
Over the course of November typical wind speeds vary from 0 mph to 12 mph (calm to gentle breeze), rarely exceeding 16 mph (moderate breeze).
The highest average wind speed of 4 mph (light breeze) occurs around November 30, at which time the average daily maximum wind speed is 12 mph (gentle breeze).
The lowest average wind speed of 3 mph (light breeze) occurs around November 4, at which time the average daily maximum wind speed is 10 mph (gentle breeze).