Phuket and Andaman Sea Forecast

Weather Forecast for the Andaman Sea Region, Thailand. 1 to 6 September, 2025.

Monday, September 1

Temperature: 30–25 °C
Weather: Heavy rain, 70% of area
Sailing Conditions: Very rough, wind 30 km/h – waves 2 m+ possible
Tide: Mixed tides (check local charts)

Tuesday, September 2

Temperature: 32–25 °C
Weather: Heavy rain, 70% of area
Sailing Conditions: Rough, wind 28 km/h – waves around 1.5–2 m
Tide: Rising mid-day (estimate)

Wednesday, September 3

Temperature: 32–26 °C
Weather: Heavy rain, 60% of area
Sailing Conditions: Choppy, wind 24 km/h – waves 1–1.5 m
Tide: Variable conditions

Thursday, September 4

Temperature: 33–26 °C
Weather: Heavy rain, 60% of area
Sailing Conditions: Moderate to choppy, wind 22 km/h – waves around 1 m
Tide: Afternoon peak (estimate)

Friday, September 5

Temperature: 33–25 °C
Weather: Heavy rain, 60% of area
Sailing Conditions: Moderate, wind 20 km/h – waves around 1 m
Tide: Low morning, rising late

Saturday, September 6

Temperature: 33–26 °C
Weather: Heavy rain, 60% of area
Sailing Conditions: Moderate, wind 20 km/h – waves around 1 m
Tide: Normal pattern

Tropical Storm “NONGFA” Advisory

Valid: 31 August – 2 September 2025 Waves are expected to reach 2–3 meters in the upper Andaman Sea and upper Gulf of Thailand, and may exceed 3 meters in areas with thunderstorms. Small boat warning: Vessels, especially speedboats, may face trip cancellations due to unsafe conditions.

Disclaimer: Weather, sea conditions, and tide information are subject to change. Always check local updates and forecasts before planning activities.