May weather forecast
Hua Hin, Thailand

In May, weather conditions in Hua Hin begin to shift significantly. The most glaring change is the near doubling of rainfall from April to a high of 109mm (4.29"). The high temperature remains constant while the relative humidity sees a minimal increase. May provides ample daylight, allowing residents and tourists to maximize their day despite the frequent showers. The end of the month starts to hint at the peak of the rainy season, signaled by increased rainfall.

Temperature

April and May, when the average high-temperature reaches 33.6°C (92.5°F), are the warmest months.

Heat index

For May, the heat index is computed to be a life-threatening hot 47°C (116.6°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Note that heat index values are valued for light wind and location in the shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. 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 especially vital to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Hua Hin, the average relative humidity in May is 74%.

Rainfall

In Hua Hin, in May, it is raining for 13 days, with typically 109mm (4.29") of accumulated precipitation. Throughout the year, in Hua Hin, there are 118 rainfall days, and 955mm (37.6") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater are April through June, with an average sea temperature of 30°C (86°F).
Note: Seeking a refreshing experience in waters over 30°C (86°F) can be challenging.

Daylight

The average length of the day in May in Hua Hin is 12h and 43min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:34. On the last day of May, in Hua Hin, sunrise is at 05:53 and sunset at 18:42 +07.

Sunshine

In May, the average sunshine in Hua Hin, Thailand, is 7h.

UV index

The months with the highest UV index in Hua Hin are February through October, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 12 during May leads to these instructions:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Apply and frequently reapply a minimum SPF 30 sunscreen even on cloudy days, especially after swimming or an outdoor workout. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.