The best time to dive in Koh Chang is during the dry season, which runs from November to April. Here’s what you can expect during this period:
Best Diving Time: November to April
• Weather: Warm and sunny with little to no rain.
• Sea Conditions: Calm waters and mild currents, ideal for divers of all levels.
• Water Temperature: Comfortable 27–30°C (81–86°F), making it perfect for a relaxed diving experience.
• Visibility: Typically excellent, ranging from 15 to 30 meters, depending on the location and conditions.
What You Can Expect Underwater
• Diverse Marine Life: Koh Chang is home to vibrant coral reefs and an abundance of marine life, including:
• Fish: Large schools of barracuda, fusiliers, and triggerfish.
• Reefs & Wracks: Colorful hard and soft corals, including some beautiful diving sites like the HTMS Chang wreck.
• Macro Life: Perfect for underwater photographers, with species like seahorses, nudibranchs, and ghost pipefish.
• Occasional Big Fish: You may even spot larger species like whale sharks or manta rays (though sightings are rarer).
Diving During the Rainy Season (May to October)
• The rainy season can still offer diving opportunities, but the sea conditions can be more challenging with rougher waters, lower visibility, and more unpredictable weather.
• If you’re an experienced diver, you can still enjoy some of Koh Chang’s dive sites, especially those that are more sheltered from the weather.
In Summary
The best time for diving in Koh Chang is between November and April, when the weather is favorable, and the diving conditions are ideal. Expect vibrant coral reefs, diverse marine life, and warm, clear waters. If you’re visiting during the off-season (May–October), be prepared for a bit more unpredictability but still plenty of underwater adventures!
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