Warm Water Scuba Diving Phuket

What is the water temperature for scuba diving in Phuket Thailand

Written By
Darren Gaspari
Owner, CEO & PADI Course Director

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What is the water temperature for scuba diving in Phuket Thailand

We often get asked what will be the water temperature when scuba diving in Phuket of Thailand. Phuket is fortunate that our water temperature is very stable and does not fluctuate much and has some of the warmest waters in the world.

The warm water temperature makes Tropical Phuket, Thailand a great place to get your PADI Open Water Certification.

Generally, the water temperature in and around Phuket is normally a very comfortable 29 degrees Celsius. With a long run of overcast days, it may drop to a chilly 28 degrees and if we get an extended run of warm sunny weather it could reach 30 degrees Celsius.

Scuba Diving Mai Thon
Scuba Diving Mai Thon

Occasionally we have thermoclines come through that will reduce the temperature to 27 – 28 degrees however they are rare.

If you are doing a scuba diving liveaboard adventure in Similan Islands then the water temperature may drop a degree or two.

In 2019 the Indian Ocean Dipole (the Indian Ocean’s equivalent of El Nino) had water temperatures down to an amazingly low 24 Degrees at times.

Our rental wetsuits are 3mm shorties however a lot of divers choose not to wear a wetsuit at all. Shorts and a rash guard are a common sight. Divers often comment on the freedom of being able to dive without a wetsuit. If you feel the cold whilst diving then generally a 3mm long wetsuit is more than enough.

When diving a liveaboard in the Similan Islands and doing multiple dives over consecutive days then 3mm long wetsuit is often a good idea. Although there are still plenty of divers that wear only shorts and a rash guard.

Come to Phuket and try scuba diving in our lovely warm waters.

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Dates for Aussie Divers Phuket IDC and PADI IE

Here is a list of the Aussie Divers Phuket PADI IDCs dates for 2026, including the PADI IE dates for Phuket.

Month
Early Preparation
IDC Course
PADI IE Phuket
Specialty Dates
January ’26
1st – 4th
5th – 16th
17th – 18th
19th – 23rd
February ’26
28th Jan – 1st Feb
2nd – 13th
14th – 15th
16th – 20th
March ’26
25th Feb – 1st Mar
2nd – 13th
14th – 15th
16th – 20th
April ’26
1st – 5th
6th – 17th
18th – 19th
20th – 24th
May ’26
29th Apr – 3rd May
4th – 15th
16th – 17th
18th – 22nd
June ’26
3rd – 7th
8th – 19th
20th – 21st
22nd – 26th
July ’26
1st – 5th
6th – 17th
18th – 19th
20st – 24th
August ’26
29th Jul – 2nd Aug
3rd – 14th
15th – 16th
17th – 21st
September ’26
2nd – 6th
7th – 18th
19th – 20th
21st – 25th
October ’26
30th Sept – 4th Oct
5th – 16th
17th – 18th
19th- 23rd
November ’26
4th – 8th
9th – 20th
21st – 22nd
23rd – 27th
December ’26
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12th – 13th
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