September is a popular month to ask about Sairee Beach because conditions can shift week to week along this coast. Expect the water near 24.0°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.
Sairee Beach sea temperature in September — averages 24.0°C
The sea at Sairee Beach in Thailand averages 24.0°C during September, 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 · September
24.0°C
hot · Excellent
Live water now
…
Recommended wetsuit
No wetsuit
At 24.0°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Monthly comparison
Yes — ideal swimming weather · Sairee Beach
Can you swim at Sairee Beach in June? — 22.0°C water22.0°CCan you swim at Sairee Beach in July? — 25.0°C water25.0°CCan you swim at Sairee Beach in August? — 26.0°C water26.0°CCan you swim at Sairee Beach in September? — 24.0°C water24.0°CCan you swim at Sairee Beach in October? — 21.0°C water21.0°CCan you swim at Sairee Beach in November? — 18.0°C water18.0°C
Frequently asked questions
What is the average sea temperature at Sairee Beach in September?
Sairee Beach averages 24.0°C in September, based on long-run climatology for the Gulf of Thailand.
Is the sea warm enough to swim at Sairee Beach in September?
Yes, most swimmers find 24.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Sairee Beach in September?
No wetsuit needed.