Thailand

Thailand, Phuket Province © By Roma Neus

Thailand Sea Temperature

This page provides detailed information about the water temperature in Thailand. All countries, cities and resorts on the coast. The range of sea temperatures for today. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature in Thailand: General Trends and Swimming Opportunities

Thailand, located in Southeast Asia, is famous for its tropical beaches and warm, inviting waters. The sea temperatures in Thailand are consistently pleasant year-round, typically ranging from 27°C (81°F) in the cooler months of December and January to 30°C (86°F) during the warmer months of April and May. These warm waters make swimming and other water activities enjoyable no matter the season.

Thailand’s coastline is dotted with world-renowned beaches and islands. The Andaman Sea, home to destinations like Phuket, Krabi, and the Similan Islands, offers crystal-clear waters ideal for swimming, snorkeling, and diving. On the Gulf of Thailand side, islands such as Koh Samui, Koh Phangan, and Koh Tao boast calm and shallow waters, perfect for families and leisure seekers. The underwater world is equally impressive, with colorful coral reefs, tropical fish, and opportunities to spot larger marine creatures like whale sharks.

Beyond swimming, Thailand provides countless opportunities for water sports, including kayaking, paddleboarding, and scuba diving. The picturesque beaches, combined with Thailand’s vibrant culture and excellent hospitality, create an unforgettable coastal experience. Whether you’re looking to relax on pristine shores or explore vibrant marine ecosystems, Thailand offers something for every traveler.

General Information and Geographical Location of Thailand

Original name of the country: Ratcha-anachak Thai

Thailand is located in Asia. The country is washed by three seas, such as the Andaman Sea, the Gulf of Thailand, the South China Sea. Thailand - has a fairly long coastline. To determine the temperature of the water in it, we track 60 settlements and resorts. Link to Google Maps.

Thailand Weather

Thailand has a tropical climate, characterized by high temperatures and humidity throughout the year. The country experiences three main seasons: a hot season from March to May, a rainy season from June to October, and a cooler dry season from November to February. During the hot season, temperatures often reach 90–105°F (32–40°C), especially in central and northern regions. The rainy season brings frequent heavy showers and occasional tropical storms, but temperatures remain warm, typically around 80–95°F (27–35°C).

In the cooler dry season, temperatures are more comfortable, ranging from 70–90°F (21–32°C) in most areas, though northern regions, such as Chiang Mai, can drop to 55°F (13°C) at night. Coastal areas, including Phuket and Pattaya, have a more stable climate with year-round warm temperatures and refreshing sea breezes. The humidity is consistently high, often exceeding 70%, making the climate feel even warmer. Due to its tropical nature, Thailand remains warm and suitable for outdoor activities and tourism throughout the year.

Frequently Asked Questions About Thailand and its Water Temperatures