May, the last month of the spring in
Chumphon, is also a hot month, with an average temperature varying between 33.3°C (91.9°F) and 24.7°C (76.5°F).
Temperature
In Chumphon, the average high-temperature in May is almost the same as in
April - a still tropical 33.3°C (91.9°F). The average low-temperature, in Chumphon,
Thailand, is 24.7°C (76.5°F).
Heat index
In May, the average heat index is evaluated at a burning hot 50°C (122°F).
Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. 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 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, metabolic differences). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. 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
The average relative humidity in May in Chumphon is 82%.
Rainfall
In Chumphon, during 18 rainfall days, 191mm (7.52") of precipitation is typically accumulated. In Chumphon, during the entire year, the rain falls for 172 days and collects up to 1873mm (73.74") of precipitation.
Daylight
In May, the average length of the day is 12h and 37min.
On the first day of May in Chumphon, sunrise is at 06:05 and sunset at 18:35. On the last day of the month, sunrise is at 06:00 and sunset at 18:41 +07.