May weather forecast and climate
Pattaya, Thailand

The towering wooden building of the Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden
The towering wooden building of the Sanctuary of Truth Temple in Pattaya, Thailand, in the middle of a lovely natural park garden
May begins the rainy season in Pattaya with the arrival of the southwest monsoon in the city. Although the rainfall is moderate, it still manages to register 147.3mm (5.8"), thanks to occasional heavy downpours.
The rain lowers the heat a little as the average temperatures reside in the 26.1°C (79°F) to 32.2°C (90°F) range. The growing season is in full swing as the landscape turns a shade of green.
At least 12 days in May witness cloud cover as the daily sunshine reduces to 6 hours during the 13 hours of daylight. Expect heavy showers of short duration with lightning and thunderstorms.

What is the temperature in May in Pattaya?

In Pattaya, in May, the average high-temperature is 32.4°C (90.3°F), and the average low-temperature is 26.4°C (79.5°F).

How much does it rain in Pattaya in May?

In Pattaya, Thailand, in May, it is raining for 12 days, with typically 148.3mm (5.8") of accumulated precipitation.
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).

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%).

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 lowest rainfall) is December (8.3mm).

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).
Months with the lowest number of rainy days are January and December (1 days).

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).

Average daylight in May / Average sunshine in May - Pattaya, Thailand
  • Average daylight in May: 12.7h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in May: 6h

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

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

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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