Koh Tao Weather September Averages, Thailand

    • Temperature Temperature 28°C 82°F
    • High Temperature High Temperature 31°C 88°F
    • Low Temperature Low Temperature 24°C 75°F
    • Sunshine Hours Sunshine Hours 6 hours
    • Rainfall Rainfall 141 mm
    • Rainfall Days Rainfall Days 18 days
    • Sea Temperature Sea Temperature 29°C 84°F

    Koh Tao Weather for September 2021

    What's the weather like in Koh Tao in September?

    Koh Tao is a small island located in the Gulf of Thailand. The island has a more relaxed vibe than nearby Koh Samui and Koh Phangan but is still a popular tourist destination, especially for those who want to give diving a go; Koh Tao has some of the best diving spots in the whole of Thailand and many diving schools. The island's sub-tropical climate is also a big draw to sun worshippers.


    September marks the end of the South West monsoon and the beginning of the North East monsoon winds. These bring heavy rains and tropical storms from September to November, which is why these months are known as the wet season. September actually has a lower rainfall average compared with August but that level will increase in the next two months. The average rainfall is 141mm with around 18 days of rainfall a month and a 36% chance of wet weather. The rain often comes in heavy afternoon storms which pass quickly.


    Temperatures are fairly consistent throughout the year in Koh Tao and remain high in September. The average temperature is the same as August, at 28°C with highs reaching 31°C. Nights are a little cooler, with an average low of 24°C. Humidity levels are also high, which means that the heat can feel very sticky at times. 

    Sea Temperature

    The water around Koh Tao also remains warm this month, with an average sea temperature of 29°C. This provides perfect conditions for swimming, snorkelling and diving in comfort.


    Like the rest of Thailand, Koh Tao enjoys sunshine all year round. Cloud cover it quite high in September, at 63%, but holiday makers will still be able to enjoy 6 hours of full sunshine every day.

    For weather information before you travel, don't forget to check our weather forecast for Kho Tao.

    Hotels in Koh Tao in September

    Koh Tai View Cliff Resort

    A great place to stay in September is Koh Tao View Cliff Resort. The family-run hotel is ideally located on an outcrop of land between Sairee beach and Mae Haad beach, offering easy access to the ocean. There's a range of accommodation options here, from luxury villas with sea views to more affordable options, but each room is equipped with either air conditioning or a fan and a private bathroom. The resort also has its own on-site restaurant serving Thai and western dishes.

    Lotus Resort

    In the middle of Sairee Beach you'll find Lotus Resort, a popular accommodation option for couples and families alike. The resort boasts both fan and air-conditioned bungalows to suit different budgets. It is also home to the O-Nine Restaurant, Lolita Spa and Massage, Top One Souvenir Shop, Office Bar and Lotus Beach Bar.

    The Rocks Villas

    Located on a hillside just ten minutes from Sairee beach, The Rocks Villas offer a boutique stay on Koh Tao. Surrounded by jungle, the hotel has a tranquil ambience where you can unwind and relax on the sun terrace or in the infinity pool overlooking the ocean. Traditional Thai bungalows are stylish and comfortable with modern facilities including a kitchenette, free Wi-Fi, a Bluetooth sound system and LED TV. The romantic ambience makes it great choice for honeymooners.

    Beaches in Koh Tao in September

    Nang Yuan

    Koh Tao's hot temperatures and sunshine provide perfect beach weather all year round. The island has many amazing beaches, but for some of the best scenery in the whole of Thailand, many tourists head to the nearby island of Nang Yuan.

    The island is made up of three small islands connected by a sandbar and is recognised as one of the most beautiful islands in the world, with turquoise water and soft white sand. Nang Yuan is just 400 metres north of Koh Tao and is easily reachable by boat taxi or daily ferry service. Activities on the island include snorkeling and the famous island-to-island zipline.

    Bars and Restaurants

    Koh Tao may be a small island, but it has no shortage of culinary delights. The island is home to a vast array of restaurants, cafés and bars serving everything from budget eats to first-class dining.

    Tukta Thai Food

    For a taste of authentic Thai food while on the island, Tukta Thai Food is recommended. Located on the main road from Chalok Ban Kao, the restaurant serves delicious home-cooked noodle dishes and spicy curries at low prices. With indoor and outdoor seating and a casual vibe, it's an ideal spot for lunch in Koh Tao.

    Sairee Sairee

    Located on Sairee beach, Sairee Sairee Restaurant is a popular place to dine at any time of the day. The contemporary brasserie and grill features a European-inspired menu with pizzas, steaks and other western favourites as well as breakfast and lunch options. Facing the beach, diners can relax and enjoy beautiful ocean views from their table.

    Living Juices

    Finally, if you're craving a healthy kick while on the island, Living Juices in Sairee village is the place to go. This friendly vegetarian juice shack serves a range of delicious fruit and vegetable-based drinks that will quench your thirst as well as healthy homemade snacks, salads and museli bowls. Everything on the menu is homemade and wholesome.

    Things to Do in Koh Tao in September

    Full Moon Party

    If you want to swap Koh Tao's laidback lifestyle for more of a party atmosphere, the island of Koh Phangan is just 30 minutes away and is renowned for its nightlife. The island hosts the world-famous Full Moon Party, which happens every month at Haad Rin - the island's nightlife hotspot. Through the entire length of the beach, 12 major sound systems will be playing party music for thousands of party goers.

    Cooking Classes

    On a sunny September day Koh Tao visitors who are interested in learning how to cook Thai cuisine should enrol in a cooking class. Such as the one offered by Koa Tao Montra.

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