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In May, the Similan Islands experience a warm climate with temperatures reaching a high of 33°C. The heat is quite intense, making it a perfect time for those who enjoy basking in the warmth. However, the nights bring a bit of relief as the temperature drops to a cooler 26°C. This contrast in temperature creates a unique balance, allowing visitors to enjoy both the warmth of the day and the coolness of the night.
The islands also experience a significant amount of rainfall in May, with up to 160 mm of rain. This makes the islands lush and vibrant, adding to their natural beauty. The wind speed is also noteworthy, averaging around 17 km/h. Despite the rain, the sun still manages to peek through at times, casting a beautiful glow on the islands. Overall, the weather in May offers a mix of warmth, cool breezes, and refreshing rain showers.