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Thailand

Phuket Travel Information & Planning Guide

Cruising Conditions 

General Conditions  
Thailand is a year-round sailing destination. There are two main seasons, which are called the wet and dry season, or the SW or NE monsoon, respectively. Seasonal winds tend to be predictable, although there may be inconsistencies as they change from one to the other. 

Monsoons  

Northeast Monsoon (Dry – November to April)  
The NE monsoon runs from November to April and has wind speeds of force 2 to 4 from the NE. The winds are quite stable during this period, and temperatures are usually in the region of 30 deg C. It is consistently dry and sunny, with ideal conditions for sailing. If you wish to visit the Similan Islands you can only do so during the Northeast Monsoon and will be asked to sign a Moorings disclaimer before you leave the base. 

Southwest Monsoon (Wet – May to Oct)   
The SW monsoon, takes place from May to October with winds force 2 to 6, from the SW. There is more wind during this season, making sailing a bit more exhilarating than the NE season. There are some rainy periods, sometimes prolonged but usually only lasting approximately 1 to 2 hours in the late afternoon or early evening. The direction of the prevailing wind means that the anchorages on the West Coast of Phuket cannot be used during this period. You are advised to anchor on the East coasts of the islands or in sheltered bays. There is still safe sailing in Phang Nga Bay right down to Koh Phi Phi with larger swells in more exposed areas. The Similan Islands are closed to visitors during the Southwest Monsoon. During September and October there can be extended periods of rain sometimes lasting up to 5 days at a time. 

Historical Weather (Averages by month): 

 Month °F Max °F Min °C Max °C Min Ave Precip (in) Ave Precip (mm) Ave Water Temp (°F) Ave Water Temp (°C) Ave Wind Speed 
January 89 73 32 23 1.6 40 82 28 NE 10-20 kts 
February 91 73 33 23 1.1 27 82 28 NE 10-20 kts 
March 93 75 34 24 2.3 59 84 29 NE 10-20 kts 
April 95 75 35 24 5.5 140 86 30 NE 10-15 kts 
May 98 75 37 24 13.1 334 86 30 SW 10-20 kts 
June 91 75 33 24 10.8 275 86 30 SW 10-25 kts 
July 89 75 32 24 11.2 284 84 29 SW 10-25 kts 
August 89 75 32 24 10.4 265 84 29 SW 10-20 kts 
September 87 75 31 24 15.7 398 84 29 SW 10-20 kts 
October 87 75 31 24 13.3 339 84 29 SW 10-20 kts 
November 87 75 31 24 7.4 187 84 29 NE 10-20 kts 
December 87 73 31 23 2.6 66 82 28 NE 10-20 kts 

Tides  
Thailand has two high tides per day. The range varies from half a metre to just over 3 metres. The Ao Po marina has instant all tide access to Phang Nga Bay.  

Tide timetables for our Phuket base can be found at Phuket Tide Tables 

Weather Forecast  
The base provides clients with a one week forecast upon arrival, however, it is recommended that guests check the weather frequently through their preferred source for the duration of the charter. 

Sailing Sustainably with Sunsail

At Sunsail, we’re committed to protecting the oceans we love through Our OCEAN Promise – a sustainability initiative focused on reducing our impact and supporting coastal communities. Across all our destinations, we take steps to tread lightly: from minimizing waste and emissions to promoting responsible travel practices.

You can help too. Before you set sail, consider packing a reusable water bottle, choosing to support local businesses, and raising the sails whenever possible to reduce engine use. Together, we can make every voyage a little kinder to the planet.

Learn more about Our OCEAN Promise

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