This report describes the typical weather at the U-Tapao International Airport (Utapao/U-Taphao) (Rayong (near Pattaya), Thailand) weather station over the course of an average March. It is based on the historical records from 2007 to 2012. Earlier records are either unavailable or unreliable.
Rayong (near Pattaya) has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by oceans and seas (54%), croplands (26%), forests (15%), and shrublands (5%).
The month of March is characterized by essentially constant daily high temperatures, with daily highs around 90°F throughout the month, exceeding 92°F or dropping below 87°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 1 with 11:54 hours of daylight; the longest day is March 31 with 12:14 hours of daylight.
The earliest sunrise is at 6:12am on March 31; the latest sunset is at 6:26pm on March 29; the latest sunrise is at 6:31am on March 1; the earliest sunset is at 6:24pm on March 3.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 78% (partly cloudy) to 83% (mostly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 6% from the start to the end of the month.
On March 16, a representative day, the sky is clear or mostly clear 0% of the time, partly cloudy 35% of the time, and mostly cloudy or overcast 61% 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 36% of days. Precipitation is least likely around March 1, occurring in 20% of days.
Throughout March, the most common forms of precipitation are thunderstorms, moderate rain, and light rain.
Thunderstorms are the most severe precipitation observed during 79% of those days with precipitation. They are most likely around March 31, when it is observed during 30% of all days.
Moderate rain is the most severe precipitation observed during 10% of those days with precipitation. It is most likely around March 14, when it is observed during 3% of all days.
Light rain is the most severe precipitation observed during 10% of those days with precipitation. It is most likely around March 12, when it is observed during 4% 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 92% (very humid) over the course of a typical March, rarely dropping below 53% (mildly humid) and reaching as high as 97% (very humid).
The air is driest around March 26, at which time the relative humidity drops below 66% (mildly humid) three days out of four; it is most humid around March 7, rising above 89% (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 68°F (muggy) or above 81°F (very oppressive).
Over the course of March typical wind speeds vary from 1 mph to 12 mph (light air to gentle breeze), rarely exceeding 26 mph (strong breeze).
The highest average wind speed of 6 mph (light breeze) occurs around March 15, at which time the average daily maximum wind speed is 11 mph (gentle breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around March 31, at which time the average daily maximum wind speed is 11 mph (gentle breeze).