Diving and snorkeling in Thailand in July-August
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Translated into English.

Original post
KO
Hello,

We’re planning a trip to Thailand for next summer. It’s the rainy season, but that’ll let us explore forest parks (Khao Yai and Khao Sok, most likely) in full bloom and teeming with wildlife. We’d also like to spend a few days on beaches with nearby coral reefs during this trip. That’s where we’re hitting a snag—I’m struggling to find an island or region with favorable weather. I’ve gone through quite a few threads on this forum, but most are pretty old and mention a few names (Tao, Phaluai, Ma, or Phang Nga), though with doubts about visibility or overall appeal. Crowds also seemed like a bit of an issue. Just to clarify, our family has mixed interests when it comes to fish-related activities—some are Level 1 divers, while others are snorkelers only.

Are there any good options in July-August for great experiences in the area? Thanks for your tips!
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SO Songsam Veteran ·
Hello,

In the summer (...) It's the rainy season, but that’ll let us explore forest parks (Khao Yai

Some years it’s closed during this season.
KO Koeuf Regular ·
thanks for the info, I’m in touch with a provider at this park—I’ll check it out
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SO Songsam Veteran ·
I’m in touch with a provider from this park, I’ll check

Does he have psychic powers? This park doesn’t close according to a long-term fixed schedule but based on the intensity of rainfall in the region for that particular year. And even if it stays open, trekking through the jungle when the trails and vegetation are soaked quickly becomes a real slog. Some other parks are even systematically closed from May to October. I doubt a provider who makes a living from the park is the best person to ask for an objective answer on this.

A word of caution about wearing swimsuits from a certain brand when swimming in Khao Yai National Park:

JO Jojoone1 Globetrotter ·
My tip: prioritize July over August.

At Khao Yai, one trail and viewpoint are still closed in July, but this doesn’t stop you from discovering the other main attractions. Other than that, if you’re unlucky, you might hit a period of heavy rainfall where everything closes from one day to the next, but statistically, you’re not taking too much of a risk.

Khao Sok is in the rainiest region of Thailand, so let’s hope you get some calm days.

This season, it’s tricky for the islands, especially since the sea is quite rough. Only Koh Samui, Koh Phangan, and Koh Tao generally have milder weather.
« Tout le monde s'interroge sur comment laisser une meilleure planète à nos enfants, mais on devrait plutôt penser à laisser de meilleurs enfants pour notre planète. » Clint Eastwood
DJ Djalma Globetrotter ·
Just a quick note about scuba diving (tanks) and, secondarily, snorkeling. Make Koh Tao your top priority. I imagine things have changed a lot since I was there (1977), but the reefs were much better than on Phangan... as for Koh Samui, it was already degraded and polluted by the mid-80s. I’d avoid that heavily concreted and polluted island. Also avoid the Andaman Sea (Phuket) due to the less favorable weather in July/August.
https://www.youtube.com/watch?v=-XCOyB7WStI https://www.youtube.com/watch?v=g2eI67iCbKY
MA Mathews Globetrotter ·
hi there, Khao Yai Park was my first jungle experience. I stayed there a few days a long time ago and got lost, which meant I ended up sleeping under the stars in the vegetation 🙂. But it's obviously better to hire a guide. As for animals, you don't always see them, but the guide will definitely show you animal tracks. Don't forget that most animals are nocturnal!
SO Songsam Veteran ·
We’d love to spend a short stay on beaches with coral reefs nearby during this trip. That’s where the problem lies—I’m struggling to find an island or region with suitable weather. I’ve gone through quite a few threads on this forum, but most are pretty old and only mention a few names (Tao

Replies from Jojoone and Djalma, plus a timely report on diving in Koh Tao from today’s 1 PM news on France 2: you shouldn’t have any more doubts about your destination for this activity.
SO Songsam Veteran ·
I lost the trail, so I ended up sleeping under the stars in the vegetation 🙂.

The important thing is to sleep in good company.



JO Jojoone1 Globetrotter ·
I immediately thought that in the middle of the night, a near-sighted elephant could’ve tripped and fallen on him...😉
« Tout le monde s'interroge sur comment laisser une meilleure planète à nos enfants, mais on devrait plutôt penser à laisser de meilleurs enfants pour notre planète. » Clint Eastwood
MA Mathews Globetrotter ·
@Songsam thanks for the photos. Is that a bamboo pit viper? @Jojoone: we laugh about it, but I saw a report that a tourist got trampled in Thailand. So it's definitely important to be careful where you set up 😉
JO Jojoone1 Globetrotter ·
@Songsam thanks for the photos. Is that a bamboo pit viper?

Looks like it: https://voyageforum.com/forum/promenades-royaume-siam-d9119276-8/
« Tout le monde s'interroge sur comment laisser une meilleure planète à nos enfants, mais on devrait plutôt penser à laisser de meilleurs enfants pour notre planète. » Clint Eastwood
SO Songsam Veteran ·
Is this a bamboo pit viper?

Yes. Without certainty, everything suggests it's a female, while Jojoone's seems to be a male.
JO Jojoone1 Globetrotter ·
I'm not the one who'd go check it out...
« Tout le monde s'interroge sur comment laisser une meilleure planète à nos enfants, mais on devrait plutôt penser à laisser de meilleurs enfants pour notre planète. » Clint Eastwood
SO Songsam Veteran ·
If, as I have no doubt, you’ve also brought the little critter home with you, next spring we’ll introduce them and see if anything happens...
SO Songsam Veteran ·
... and since we're on the topic of animals, Zigomar shared a travel journal in the South America section that’s absolutely fascinating (same for the landscapes) and really deserves more views: https://voyageforum.com/v.f?post=11476554;page=last;#last
KO Koeuf Regular ·
je viens de trouver les dates de fermeture pour 2025 et 2026, données mi aout 2025. on peut supposer que celles de 2027 seront données à la même époque, je regarderais donc. Pour Khao yai, c'était des fermetures partielles cette année.
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KO Koeuf Regular ·
Merci pour les infos, je m'interroge en effet beaucoup sur khao sok
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KO Koeuf Regular ·
merci pour le partage. Je sais bien que, dans les forêts, on ne sait jamais ce que l'on peut trouver comme faune ou flore. Sinon, on va dans un zoo ou un jardin botanique. C'est aussi ce qui fait le charme de la forêt !
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KO Koeuf Regular ·
Je viens de voir ce reportage, effectivement, cela fait envie !
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