The first month of the spring,
March, is still a tropical month in
Hua Hin,
Thailand, with temperature in the range of an average high of 32.4°C (90.3°F) and an average low of 24.6°C (76.3°F).
The ideal sea water temperature of 29°C (84.2°F) and only 2 rainfall days, with 54mm (2.13") of accumulated rainfall, makes March the best time for swimming and other water activities.
Temperature
In Hua Hin, the average high-temperature in March is almost the same as in
February - a still tropical 32.4°C (90.3°F). In Hua Hin, the average low-temperature is 24.6°C (76.3°F).
Heat index
The average heat index in March is computed to be an extremely hot 43°C (109.4°F).
Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, differences in body mass, height, and shape, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In March, the average relative humidity is 73%.
Rainfall
In March, the rain falls for 2 days. Throughout March, 54mm (2.13") of precipitation is accumulated. Throughout the year, in Hua Hin, there are 118 rainfall days, and 955mm (37.6") of precipitation is accumulated.
Sea temperature
In Hua Hin, Thailand, the average water temperature is 29°C (84.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Daylight
In Hua Hin, the average length of the day in March is 12h and 4min.
On the first day of March, sunrise is at 06:35 and sunset at 18:29. On the last day of the month, sunrise is at 06:17 and sunset at 18:31 +07.
Sunshine
January through March and
December, with an average of 9h of sunshine, are months with the most sunshine in Hua Hin.
UV index
The months with the highest UV index are February through
October, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In March, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.