Thailand Weather in July 2025: Travel Tips for First Visitors

Written by Mike Ho Updated Feb. 24, 2024

Thailand Weather in July Overview

In July, Thailand's tropical climate ushers in the hot and humid monsoon season. Average temperatures slightly drop to 28-29°C, accompanied by increased rainfall, occasionally leading to prolonged showers, especially as August approaches.

This period is generally considered the low season for travel, resulting in fewer crowds and a more serene atmosphere.

  • Average temperature range: 27–32°C (80–89°F)
  • Rainfall: 170 mm (7 inches)
  • Rainy days: 17-22
  • Sunny days: 5

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Thailand weather in July

Thailand's Regional Weather in July

Location Min. Temp. (ºC)/(°F) Max. Temp. (ºC)/(°F) Rainfall (mm)/(in)
Bangkok 25ºC (77°F) 33ºC (91.4°F) 183mm (11.18in)
Chiang Mai 23ºC (73.4°F) 32ºC (89.6°F) 150mm (9.15in)
Phuket 23ºC (73.4°F) 30ºC (86°F) 267mm (16.31in)
Krabi 22ºC (71.6°F) 31ºC (87.8°F) 217mm (13.24)
Hua Hin 25ºC (77°F) 33ºC (91.4°F) 96mm (5.85in)
Koh Samui 24ºC (75.2°F) 29ºC (84.2°F) 110mm (6.70in)

In Bangkok and Central Thailand: The average temperature is about 29°C (85°F). Due to the monsoon winds, the weather can change rapidly even within the span of a day.

In northern Thailand, including Chiang Mai: The north experiences moderate rainfall during July, but because of its mountainous terrain and inland location, it is cooler than other regions of Thailand.

The southern islands: Islands such as Ko Samui remain favorable, despite occasional rain and wind. Conversely, areas like Ko Chang and the Andaman coast, including Phuket Island, experience notably heavier rainfall during this period.

Get more ideas on planning a family trip to Thailand.

The Best Places to Visit in Thailand in July

In July, despite the rainy season in many parts of Thailand, there are still several captivating places to visit. Here are some top destinations:

  • Chiang Mai: Explore the cultural richness of northern Thailand. While it's the rainy season, the lush landscapes and cultural festivals, such as Buddhist celebrations, can offer a unique experience.
  • Kanchanaburi: Known for the Erawan National Park and the Death Railway, Kanchanaburi's greenery is at its peak during July. The rain enhances the beauty of waterfalls and the overall natural scenery.
  • Pai: A laid-back town in the mountains of northern Thailand, Pai offers a tranquil atmosphere amidst stunning landscapes. The rain can add a refreshing touch to the surroundings.
  • Ayutthaya: Explore the historical ruins of the ancient capital. The rain can bring a unique charm to the historical monuments, and the crowds are usually thinner during this period.
  • Koh Samui: While the islands generally experience more rain in July, Koh Samui on the east coast tends to have a drier climate compared to other popular islands. Enjoy the beautiful beaches and cultural sites.
  • Bangkok: The bustling capital city offers a vibrant urban experience, even during the rainy season. Explore the city's temples, museums, and shopping districts, and indulge in the diverse culinary scene. While outdoor activities may be affected by occasional rain, Bangkok's indoor attractions provide ample opportunities for cultural exploration.

 More Helpful Information:

Crowding and Costs in July

Few people choose July to travel to Thailand because of its heat and rain. Discounted rates can often be seen in many branded hotels and restaurants. The tourist sites and beaches are generally quiet and empty, which makes it a good time to go to relax, though you may need to retreat inside when afternoon/evening downpours come.

Clothes to Wear in July

Light shirts and cool clothes are good attire for Thailand in July. Shorts, skirts, T-shirts, light trousers, and caps are recommended to pack for your trip to Thailand in July.

In most places, there are more than 20 days with some rain in July. So, umbrellas, light raincoats, and rubber boots or sandals are probably going to be needed during your trip in July.

Traveling to Thailand in July? Check out These Great Itineraries

These are some sample itineraries for your inspiration and they can be customized based on your interests and requirements. 

Monthly Weather and Travel Information for Thailand

Learn about the weather in Thailand for 12 months and find out the best places to visit each month.

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