Haad Yao Temperature by Month
The average annual maximum temperature in Haad Yao, Surat Thani Province, Thailand is 30°C (86°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Haad Yao compares to cities worldwide.
Haad Yao Monthly Temperatures
With minimal seasonal shifts, Haad Yao experiences a constant climate year-round. Maximum daytime temperatures range from a very warm 31°C (88°F) in May to a comfortable 29°C (84°F) in January. At night, temperatures range from 28°C (82°F) in May to 26°C (79°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Haad Yao by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. May, the city's warmest month, gets 195 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Haad Yao vs Thailand
The map below shows the annual temperature across Thailand. You can also select individual months if you want to compare a specific time of year.
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Haad Yao vs World: Temperature Compared
Haad Yao's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Haad Yao?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Haad Yao, January is the coolest month, with average highs of 29°C (84°F) and humidity around 83% — considered very high. In May, the warmest month, temperatures average 31°C (88°F) with 80% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Haad Yao this rarely lasts long on the ground.
For more on Haad Yao's weather — including monthly rainfall, sunshine hours, and humidity — visit our Haad Yao climate page.
