This report describes the typical weather at the Tan Son Nhat International Airport (Ho Chi Minh City, Vietnam) weather station over the course of an average April. It is based on the historical records from 1983 to 2012. Earlier records are either unavailable or unreliable.
Ho Chi Minh City has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by croplands (88%), grasslands (4%), and lakes and rivers (3%).
The month of April is characterized by essentially constant daily high temperatures, with daily highs around 94°F throughout the month, exceeding 97°F or dropping below 91°F only one day in ten.
Over the course of April, the length of the day is essentially constant. The shortest day of the month is April 2 with 12:14 hours of daylight; the longest day is April 30 with 12:30 hours of daylight.
The earliest sunrise is at 5:36am on April 30; the latest sunset is at 6:06pm on April 30; the latest sunrise is at 5:50am on April 1; the earliest sunset is at 6:04pm on April 2.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 43% (partly cloudy) to 54% (partly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 11% from the start to the end of the month.
On April 1, the clearest day of the month, the sky is clear, mostly clear, or partly cloudy 81% of the time, and overcast or mostly cloudy 10% of the time.
On April 30, the cloudiest day of the month, the sky is overcast, mostly cloudy, or partly cloudy 67% of the time, and clear or mostly clear 24% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around April 30, occurring in 57% of days. Precipitation is least likely around April 1, occurring in 29% of days.
Throughout April, the most common forms of precipitation are thunderstorms.
Thunderstorms are the most severe precipitation observed during 84% of those days with precipitation. They are most likely around April 30, when it is observed during 48% of all days.
Either snow is exceptionally unlikely to fall at this location in April or this station does not reliably report precipitation types.
The relative humidity typically ranges from 49% (comfortable) to 91% (very humid) over the course of a typical April, rarely dropping below 40% (comfortable) and reaching as high as 100% (very humid).
The air is driest around April 1, at which time the relative humidity drops below 53% (mildly humid) three days out of four; it is most humid around April 29, rising above 86% (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 April, the dew point typically varies from 70°F (muggy) to 78°F (oppressive) and is rarely below 66°F (muggy) or above 80°F (very oppressive).
Over the course of April typical wind speeds vary from 2 mph to 13 mph (light air to moderate breeze), rarely exceeding 19 mph (fresh breeze).
The highest average wind speed of 8 mph (light breeze) occurs around April 1, at which time the average daily maximum wind speed is 13 mph (moderate breeze).
The lowest average wind speed of 7 mph (light breeze) occurs around April 30, at which time the average daily maximum wind speed is 13 mph (moderate breeze).