September is a popular month to ask about Silver Beach Samui because conditions can shift week to week along this coast. Expect the water near 29,0°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.
Silver Beach Samui sea temperature in September — averages 29,0°C
The sea at Silver Beach Samui in Thailand averages 29,0°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
29,0°C
tropical · Excellent
Live water now
…
Recommended wetsuit
No wetsuit
At 29.0°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Monthly comparison
Yes — ideal swimming weather · Silver Beach Samui
Can you swim at Silver Beach Samui in July? — 29,0°C water29,0°CCan you swim at Silver Beach Samui in August? — 29,0°C water29,0°CCan you swim at Silver Beach Samui in September? — 29,0°C water29,0°CCan you swim at Silver Beach Samui in October? — 29,0°C water29,0°CCan you swim at Silver Beach Samui in November? — 28,0°C water28,0°CCan you swim at Silver Beach Samui in December? — 27,0°C water27,0°C
Frequently asked questions
What is the average sea temperature at Silver Beach Samui in September?
Silver Beach Samui averages 29,0°C in September, based on long-run climatology for the Gulf of Thailand.
Is the sea warm enough to swim at Silver Beach Samui in September?
Yes, most swimmers find 29,0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Silver Beach Samui in September?
No wetsuit needed.