In December, Koh Phangan experiences a warm climate with temperatures ranging from a comfortable 24°C at night to a slightly hotter 29°C during the day. The island is quite humid this time of year, with a significant amount of rainfall, about 150 mm, making the surroundings lush and vibrant. The weather is generally overcast, with the sun peeking out only occasionally.
The wind speed is moderate, averaging around 8 km/h, providing a gentle breeze that can be quite refreshing amidst the warm temperatures. Despite the rain, the island maintains its charm, with the weather adding a different kind of beauty to the landscape. Overall, December in Koh Phangan is a mix of warm temperatures, frequent rains, and gentle winds.