January is a popular month to ask about Haad Yuan because conditions can shift week to week along this coast. Expect the water near 27,0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Gulf of Thailand.
Haad Yuan sea temperature in January — averages 27,0°C
The sea at Haad Yuan in Thailand averages 27,0°C during January, based on long-run climatology for the Gulf of Thailand. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · January
27,0°C
tropical · Excellent
Live water now
…
Recommended wetsuit
No wetsuit
At 27.0°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Monthly comparison
Yes — ideal swimming weather · Haad Yuan
Can you swim at Haad Yuan in July? — 29,0°C water29,0°CCan you swim at Haad Yuan in August? — 29,0°C water29,0°CCan you swim at Haad Yuan in September? — 29,0°C water29,0°CCan you swim at Haad Yuan in October? — 29,0°C water29,0°CCan you swim at Haad Yuan in November? — 28,0°C water28,0°CCan you swim at Haad Yuan in December? — 27,0°C water27,0°C
Frequently asked questions
What is the average sea temperature at Haad Yuan in January?
Haad Yuan averages 27,0°C in January, based on long-run climatology for the Gulf of Thailand.
Is the sea warm enough to swim at Haad Yuan in January?
Yes, most swimmers find 27,0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Haad Yuan in January?
No wetsuit needed.