May marks the beginning of the rainy season in
Lampang,
Thailand, with tropical storms being the norm during this time. This can be attributed to increased evaporation rates resulting from the preceding hot season. The high rainfall also leads to significant cloud cover, which might somewhat temper the sweltering temperatures of
April. Despite the rainfall, May experiences slightly longer daylight hours than April, offering longer sunlight exposure despite the frequent precipitation.
Temperature
Lampang's transition from April to May introduces an average high-temperature of a still fiery hot 35.5°C (95.9°F), marking an insignificant variation from the 38.3°C (100.9°F). May's average low-temperature reading settles at a warm 24.2°C (75.6°F).
Heat index
May's average heat index is calculated to be a blazing hot 53°C (127.4°F).
Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Lampang, the average relative humidity in May is 72%.
Rainfall
In May, in Lampang, Thailand, the rain falls for 14 days. Throughout May, 160mm (6.3") of precipitation is accumulated. Throughout the year, in Lampang, there are 113 rainfall days, and 1046mm (41.18") of precipitation is accumulated.
Daylight
In Lampang, the average length of the day in May is 12h and 59min.
On the first day of May in Lampang, sunrise is at 05:54 and sunset at 18:43. On the last day of the month, sunrise is at 05:45 and sunset at 18:54 +07.