This report describes the typical weather at the Paya Lebar Air Base (RSAF) (Singapore) weather station over the course of an average March. It is based on the historical records from 1999 to 2012. Earlier records are either unavailable or unreliable.
Singapore has a tropical rainforest climate with no dry season. The area within 25 mi of this station is covered by croplands (45%), oceans and seas (41%), built-up areas (6%), shrublands (3%), and grasslands (3%).
The month of March is characterized by essentially constant daily high temperatures, with daily highs around 90°F throughout the month, exceeding 93°F or dropping below 86°F only one day in ten.
Over the course of March, the length of the day is essentially constant. The shortest day of the month is March 15 with 12:05 hours of daylight; the longest day is March 28 with 12:07 hours of daylight.
The earliest sunrise is at 7:05am on March 31; the latest sunset is at 7:19pm on March 1; the latest sunrise is at 7:14am on March 1; the earliest sunset is at 7:12pm on March 31.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover is 90% (mostly cloudy) and does not vary substantially over the course of the month.
On March 16, a representative day, the sky is clear or mostly clear 0% of the time, partly cloudy 9% of the time, and mostly cloudy or overcast 64% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around March 31, occurring in 74% of days. Precipitation is least likely around March 1, occurring in 58% of days.
Throughout March, the most common forms of precipitation are thunderstorms and light rain.
Thunderstorms are the most severe precipitation observed during 83% of those days with precipitation. They are most likely around March 31, when it is observed during 65% of all days.
Light rain is the most severe precipitation observed during 11% of those days with precipitation. It is most likely around March 2, when it is observed during 9% of all days.
Either snow is exceptionally unlikely to fall at this location in March or this station does not reliably report precipitation types.
The relative humidity typically ranges from 62% (mildly humid) to 95% (very humid) over the course of a typical March, rarely dropping below 52% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around March 2, at which time the relative humidity drops below 65% (mildly humid) three days out of four; it is most humid around March 27, rising above 92% (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 March, the dew point typically varies from 73°F (very muggy) to 79°F (oppressive) and is rarely below 70°F (muggy) or above 80°F (very oppressive).
Over the course of March typical wind speeds vary from 0 mph to 11 mph (calm to gentle breeze), rarely exceeding 16 mph (moderate breeze).
The highest average wind speed of 6 mph (light breeze) occurs around March 1, at which time the average daily maximum wind speed is 11 mph (gentle breeze).
The lowest average wind speed of 3 mph (light air) occurs around March 31, at which time the average daily maximum wind speed is 9 mph (gentle breeze).