The highest day temperature in May 2025 was 96°F. The lowest night temperature was 76°F. The average values for day and night temperatures during May were 90.5°F и 78.9°F respectivly.

The average sea surface temperature in May 2025 for Hat Yai was 91.5°F. The maximum and minimum values were 90.4°F and 93.6°F respectively.

Most of the days in May are cloudy but you can also expect sunny or gloomy days.

Precipitation total in May for Hat Yai is 7.1 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 3.8 mph. It makes May the most windless month of the year for Hat Yai.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Hat Yai in May is 7.1 hours.