Koh Samui, an island in the Gulf of Thailand, has a tropical climate that can be divided into three main seasons:
Dry Season (December to February): This is the most popular time to visit Koh Samui. The weather is relatively cool and dry, with temperatures ranging from 24°C to 32°C (75°F to 89°F). Rainfall is minimal during this period, making it ideal for beach activities and outdoor exploration.
Hot Season (March to August): The hot season in Koh Samui is characterized by higher temperatures and occasional short, heavy rain showers. Daytime temperatures can reach up to 35°C (95°F). March and April are typically the hottest months. This season is still a good time to visit, but be prepared for occasional rain.
Rainy Season (September to November): The rainy season brings more frequent and intense rainfall, with September and October being the wettest months. While it's still possible to visit, keep in mind that some outdoor activities might be limited due to the rain. The upside is that the island is lush and green during this time.
The best time to visit Koh Samui largely depends on your preferences. If you prefer dry and pleasant weather, the dry season is the ideal time. If you don't mind a bit of rain and want to experience the island's lush, green landscape, the rainy season can be a more budget-friendly option with fewer crowds.