Weather and Tide Forecast for the Gulf of Thailand (Samui/Phangan/Tao/Surat Thani)

Gulf of Thailand Weather Forecast (Samui/Phangan/Tao/Surat Thani) 29 September to 4 October, 2025.

29 Sep (Monday)
Temp: 32°C / 25°C
Weather: Heavy rain, thunderstorms (60% area)
Wind: 19 km/h
Sailing: Caution advised, waves 1–2 m
Tide: Moderate tides

30 Sep (Tuesday)
Temp: 32°C / 25°C
Weather: Heavy rain (60% area)
Wind: 19 km/h
Sailing: Risky for small boats, waves up to 2 m
Tide: Normal patterns

01 Oct (Wednesday)
Temp: 34°C / 25°C
Weather: Heavy rain (40% area)
Wind: 17 km/h
Sailing: Slightly calmer, waves 1–1.5 m
Tide: Regular tides

02 Oct (Thursday)
Temp: 34°C / 25°C
Weather: Heavy rain (40% area)
Wind: 15 km/h
Sailing: Conditions improving, waves around 1 m
Tide: Normal

03 Oct (Friday)
Temp: 35°C / 26°C
Weather: Heavy rain (40% area)
Wind: 13 km/h
Sailing: Relatively better, waves 1 m or less
Tide: Standard tides

04 Oct (Saturday)
Temp: 35°C / 26°C
Weather: Heavy rain (40% area)
Wind: 13 km/h
Sailing: Manageable but monitor local alerts, waves 1 m
Tide: Normal fluctuations