May weather forecastRoi Et, Thailand
May weather for Roi Et, Thailand: Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent.
May
Weather in May
May, the last month of the spring in Roi Et, is another tropical month, with an average temperature ranging between min 25°C (77°F) and max 34.2°C (93.6°F).Temperature
The arrival of May is marked by an average high-temperature of a hot 34.2°C (93.6°F), bearing a close resemblance to April. May brings an average low-temperature of 25°C (77°F) to Roi Et.Heat index
May's mean heat index is appraised at a burning hot 49°C (120.2°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
The average relative humidity in May is 73%.Rainfall
In Roi Et, in May, it is raining for 15 days, with typically 186mm (7.32") of accumulated precipitation. Throughout the year, there are 108 rainfall days, and 1342mm (52.83") of precipitation is accumulated.Daylight
The average length of the day in May is 12h and 53min.On the first day of May, sunrise is at 05:40 and sunset at 18:24. On the last day of the month, sunrise is at 05:32 and sunset at 18:33 +07.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Roi Et, Thailand
- Average high temperature in May: 34.2°C
The warmest month (with the highest average high temperature) is April (35.7°C).
The month with the lowest average high temperature is December (29.3°C).
- Average low temperature in May: 25°C
The month with the highest average low temperature is June (25.2°C).
The coldest month (with the lowest average low temperature) is January (17.2°C).
Average humidity in May
Roi Et, Thailand
- Average humidity in May: 73%
The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is March (61%).
Average rainfall in May
Roi Et, Thailand
- Average rainfall in May: 186.1mm
The wettest month (with the highest rainfall) is August (252.2mm).
The driest month (with the least rainfall) is December (2.1mm).
Average rainfall days in May
Roi Et, Thailand
- Average rainfall days in May: 15 days
The months with the highest number of rainy days are August and September (18 days).
The months with the least rainy days are January and December (1 days).
Average daylight in May
Roi Et, Thailand
- Average daylight in May: 12h and 54min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).





