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

Gulf of Thailand Weather Forecast (Samui/Phangan/Tao/Surat Thani) July 15 to 20 July, 2025.

Tuesday, July 15

Temperature: Highs around 31°C, lows near 24°C
Weather: Mostly sunny with scattered clouds
Sailing Conditions: Good conditions, light swells
Tide: High at 2:06 AM (2.28 m), Low at 10:34 AM (0.94 m)

Wednesday, July 16

Temperature: Highs around 31°C, lows near 24°C
Weather: Partly sunny, no significant rain
Sailing Conditions: Very good, light breezes
Tide: High at 2:31 AM (2.06 m), Low at 9:57 AM (1.02 m)

Thursday, July 17

Temperature: Highs around 32°C, lows near 25°C
Weather: Mostly clear, hot afternoon
Sailing Conditions: Excellent; calm seas
Tide: High at 2:48 AM (1.79 m), Low at 9:40 AM (1.04 m)

Friday, July 18

Temperature: Highs around 32°C, lows near 25°C
Weather: Sunny with light evening clouds
Sailing Conditions: Ideal for all marine activities
Tide: High at 2:24 AM (1.53 m), Low at 9:32 AM (1.00 m)

Saturday, July 19

Temperature: Highs around 32°C, lows near 25°C
Weather: Mostly sunny with slight chance of evening rain
Sailing Conditions: Favorable; minor late-day swells
Tide: High at 2:16 AM (1.32 m), Low at 9:30 AM (0.96 m)

Sunday, July 20

Temperature: High ~32 °C, Low ~25 °C (typical July pattern)
Weather: Likely partly sunny, slight chance of showers
Sailing Conditions: Good mid-day, possible late-afternoon swells
Tide: High at 7:40 PM (~1.25 m), Low at 9:22 AM (~0.18 m)