May weather forecast
Phitsanulok, Thailand

The arrival of May signals the onset of the monsoon season in Phitsanulok. A slight dip in average high temperatures accompanies an increase in rainfall, with this month seeing rainfall up to 171mm (6.73") over 15 days. This enhanced rate of precipitation marks a significant shift in the regional weather patterns. Experiencing a longer daylight duration, Phitsanulok in May is an interesting blend of warm, tropical sunshine punctuated by brief yet intense downpours.

Temperature

May begins with an average high-temperature of a still very hot 35.6°C (96.1°F), reflecting close similarity to the preceding month. An average low-temperature of 25.2°C (77.4°F) is common in Phitsanulok, Thailand, during the nights of May.

Heat index

In May, the average heat index is evaluated at a blazing hot 53°C (127.4°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
In reference to the heat index, it's for places in shade and with a slight wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In May, the average relative humidity is 71%.

Rainfall

In Phitsanulok, during May, the rain falls for 15 days and regularly aggregates up to 171mm (6.73") of precipitation. In Phitsanulok, during the entire year, the rain falls for 121 days and collects up to 1317mm (51.85") of precipitation.

Daylight

The average length of the day in May is 12h and 55min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:38. On the last day of May, sunrise is at 05:44 and sunset at 18:48 +07.