Thailand weather in August

Wondering about the weather in Thailand in August? Here, we'll cover everything from average air and sea temperatures to what to look forward to on your Thailand vacation. Plus, we'll share inspiring itinerary suggestions to help you make the most of your trip.

Is August a good time to visit Thailand?

August can be a challenging time to visit Thailand due to the rainy season, especially in the northern and central regions. Heavy rains, high humidity and the possibility of flooding are common this month. However, on the southern islands such as Phuket and Koh Samui, the weather can be more favorable for vacations. 

When traveling to Thailand in August you should be mindful of the possibility of disrupting outdoor activities and travel plans and have a backup plan. Overall though, if you don't mind the occasional rain and prefer fewer people, you can enjoy the weather in Thailand in August.

Ready to explore Thailand? Embark on your dream trip hassle-free with the help of our Thailand travel experts.

Average daily temperatures in August

In August, Thailand is deep into its monsoon season, with frequent rain and high humidity. Bangkok temperatures range from 78°F (26°C) at night to 91°F (33°C) during the day, with around 8 inches (200mm) of rain. 

Chiang Mai sees similar daytime highs of 88°F (31°C) but cooler nights at 73°F (23°C). 

Southern Thailand, particularly Phuket, Krabi and Samui, can expect heavier rain, with up to 13 inches (330mm) of precipitation and temperatures between 77°F (25°C) and 87°F (31°C). Despite the wet conditions, you’ll still get 5-6 hours of sunshine per day. Travel during August is more affordable due to the rain, and the country’s jungles are vibrant and green. Be prepared for sudden downpours, especially in the afternoons.

Ready to embark on a Thailand adventure? Don't miss our Thailand itineraries and information on how to get there. 

What about the crowd & cost?

August is similar to July in terms of crowds and weather, with more European tourists visiting during their summer vacations. Islands in the Gulf of Thailand, such as Koh Samui, Koh Phangan, and Koh Tao, remain busy due to relatively dry conditions compared to the wetter Andaman Coast. Prices for accommodations are moderate but rise in popular tourist spots. You can still find deals if you're flexible and avoid the most touristy areas.

Still haven't decided where you're going this summer? Explore our list of the best August vacation destinations.

What to do in Thailand in August

While going on a trip, one must consider the weather in Thailand in August and the nuances that this month brings. You may also be interested in our list of the best things to do in Thailand at any time of year.

Celebrate Ubon Ratchathani Candle Festival

Traveling to Thailand in August there is a chance of catching the Ubon Ratchathani Candle Festival, which falls in July or August depending on the year. This festival is enchanting with a candle carving competition, grand processions with elaborately carved candles, traditional performances and religious ceremonies.

Go on a Khlong Saen Saep express boat trip

Embark on an unusual adventure in Bangkok with a ride on the Khlong Saen Saep Express Boat. This local water journey is not only a practical means of transport but also a scenic and unconventional view of the bustling city. 

Gliding along the water, and observing daily life along the canal, you'll immerse yourself in the authentic charm of Bangkok's water transport system, offering a truly unique and unforgettable experience for visitors exploring the bustling Thai capital.

Rough Guides tips: As you plan your trip to Bangkok, make sure to choose the ideal place to stay in the city.

Have a mud spa experience

Harness the healing properties of Samui's rainy season with a rejuvenating mud spa. Indulge in a tropical atmosphere where heavy rainfall enhances the revitalising properties of the mud. Immerse yourself in a revitalising treatment, allowing the natural elements to nourish your skin and soothe your senses, creating a unique and blissful spa experience that harmonises with the lush nature of the island.

Explore Tham Lod Cave

Embark on a fascinating adventure in Pai, plunging into the depths of Tham Lod Cave. This vast limestone cave, with an subway river running through it, offers a mesmerizing view of the underworld. Traveling through its caves, you will see unique rock formations and experience the enchanting beauty of stalactites and stalagmites.

To find the ideal season to visit Thailand for you, make sure to read all about the best time to visit Thailand.

Festivals and events in Thailand in August

There are several festivals and events that take place in Thailand in August. Here's our pick:

• Queen's Birthday / Mother's Day: Celebrates the birthday of Queen Sirikit, honoring her and mothers nationwide. Features alms-giving ceremonies, candle-lighting rituals, and special Mother's Day activities throughout the country.
• Chanthaburi Fruit Festival: Showcases the eastern province's abundant fruit harvest. Visitors can sample and buy various tropical fruits. Includes fruit-themed parades, competitions, and cultural performances celebrating local agriculture.
• Phimai Boat Races: Traditional long-boat races held on the Mun River in Nakhon Ratchasima province. Teams compete in colorfully decorated boats. Includes folk performances, local food fairs, and light and sound shows.
• Phuket Vegetarian Festival: Taoist celebration of spiritual cleansing and merit-making. Features strict vegetarian diets, sacred rituals, and spectacular acts of self-mortification. Includes street processions and fireworks displays.

Plan your trip with our Thailand itineraries

Our Thailand itineraries are crafted to help you experience the best of the country, stress-free. Think of them as a starting point — perfect for planning, but flexible enough to adjust to your own pace and interests. After all, travel is about freedom, but a little planning goes a long way.

• Thailand itinerary 7 days: A week in Thailand is just enough to see the highlights, usually a mix of Bangkok, one cultural destination, and some beach time.
• Thailand itinerary 10 days: Ten days lets you explore multiple regions, such as Bangkok, northern Thailand, and a few days on the coast.
• Northern Thailand itinerary: A focused trip on northern Thailand’s unique charm, covering lush mountains, temples, and local hill tribe cultures.
• Southern Thailand itinerary: Discover the beauty of Thailand’s south, known for its stunning islands, beaches, and marine life. Perfect for beach lovers and those seeking a laid-back, tropical escape.
• Krabi itinerary: Explore Krabi’s famous limestone cliffs, emerald waters, and hidden beaches. Great for adventure enthusiasts with options for island hopping, rock climbing, and snorkeling.
• Phuket itinerary: A Phuket trip offers a mix of vibrant nightlife, beautiful beaches, and cultural sites. Expect lively markets, water activities, and a range of beach resorts.
• Chiang Mai itinerary: Discover Chiang Mai’s rich cultural heritage, from ancient temples to bustling night markets. Ideal for travelers looking for a blend of history, local crafts, and lush mountain scenery.