May weather forecast
Pattaya, Thailand

The Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden
The Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden

Weather in May

May, the last month of the spring in Pattaya, is also a hot month, with an average temperature ranging between min 26.4°C (79.5°F) and max 32.4°C (90.3°F).

Temperature

In May, the average high-temperature is almost the same as in April - a still tropical 32.4°C (90.3°F). In May, in Pattaya, the average low-temperature is 26.4°C (79.5°F).

Heat index

The average heat index in May is computed to be a scorching 44.9°C (112.8°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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', 'felt air temperature', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like wind, clothing, differences in body mass, height, and shape, and activity influence one's weather impression. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In May, the average relative humidity in Pattaya is 78%.

Rainfall

In Pattaya, in May, during 12 rainfall days, 148.3mm (5.84") of precipitation is typically accumulated. Throughout the year, in Pattaya, there are 106 rainfall days, and 1110.7mm (43.73") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 30°C (86°F), May is the month with the warmest seawater.
Note: The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

Daylight

In May, the average length of the day is 12h and 43min.
On the first day of May, sunrise is at 05:55 and sunset at 18:31. On the last day of the month, sunrise is at 05:49 and sunset at 18:39 +07.

Sunshine

In May, the average sunshine is 6h.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index in Pattaya. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 12 in May transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Pattaya?

In May, in Pattaya, Thailand, the average high-temperature is 32.4°C (90.3°F), and the average low-temperature is 26.4°C (79.5°F). In May, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 44.9°C (112.8°F).

What is the average humidity in May in Pattaya?

In May, the average relative humidity is 78%.

How many days does it rain in May in Pattaya?

In May, in Pattaya, Thailand, the rain falls for 12 days. Throughout May, 148.3mm (5.84") of precipitation is accumulated.

What is the month with the warmest sea water in Pattaya?

May is the month with the warmest seawater, with an average sea temperature of 30°C (86°F).

How warm is the water in May in Pattaya?

In Pattaya, in May, the average water temperature is 30°C (86°F). The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

How many hours of daylight does Pattaya have in May?

The average day length in May is 12h and 43min.

What time are sunrise and sunset in May in Pattaya?

On the first day of May in Pattaya, Thailand, sunrise is at 05:55 and sunset at 18:31. On the last day of the month, sunrise is at 05:49 and sunset at 18:39 +07.

How many hours of sunshine does Pattaya have in May?

In May, the average sunshine duration in Pattaya is 6h.

What are the months with the highest UV index in Pattaya?

February through September, with an average maximum UV index of 12, are months with the highest UV index in Pattaya, Thailand.

What is the UV index reading in May in Pattaya?

In Pattaya, the average daily maximum UV index in May is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from unprotected exposure to UV radiation.

Average temperature in May
Pattaya, Thailand

Average temperature in May - Pattaya, Thailand
  • Average high temperature in May: 32.4°C

The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (30°C).

  • Average low temperature in May: 26.4°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is December (22.5°C).

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Average humidity in May
Pattaya, Thailand

Average humidity in May - Pattaya, Thailand
  • Average humidity in May: 78%

The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is December (70%).

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Average rainfall in May
Pattaya, Thailand

Average rainfall in May - Pattaya, Thailand
  • Average rainfall in May: 148.3mm

The wettest month (with the highest rainfall) is October (216.1mm).
The driest month (with the least rainfall) is December (8.3mm).

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Average rainfall days in May
Pattaya, Thailand

Average rainfall days in May - Pattaya, Thailand
  • Average rainfall days in May: 12 days

The month with the highest number of rainy days is October (18 days).
The months with the least rainy days are January and December (1 days).

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Average sea temperature in May
Pattaya, Thailand

Average sea temperature in May - Pattaya, Thailand
  • Average sea temperature in May: 30°C

The best month for swimming (with the highest average sea temperature) is May (30°C).
The coldest month (with the lowest average sea temperature) is January (27.2°C).

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Average daylight in May /
Average sunshine in May
Pattaya, Thailand

Average daylight in May / Average sunshine in May - Pattaya, Thailand
  • Average daylight in May: 12h and 43min

The month with the longest days is June (Average daylight: 12h and 52min).
The month with the shortest days is December (Average daylight: 11h and 23min).

  • Average sunshine in May: 6h

The months with the most sunshine are January, February, March, April and December (Average sunshine: 8h).
The months with the least sunshine are June, July, August and September (Average sunshine: 5).

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Average UV index in May
Pattaya, Thailand

Average UV index in May - Pattaya, Thailand
  • Average UV index in May: 12

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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