Thailand is in the rainy season in July. Wondering whether the rainy season will ruin your plans?
Here's the good news: July is still a great time to visit—if you know where to go and what to expect.
I've been traveling around Thailand during the rainy season for years, and this guide gives you the most practical, real-experience advice you won't find on generic travel websites.
Thailand's Weather and Climate in July
July is mid-rainy season in Thailand. Showers are frequent but rarely last all day. Rain often comes in short bursts of 30–60 minutes followed by clear skies. Humidity is high, and temperatures remain warm year-round.
Thailand's Weather by Region in July
| Region | Avg Temp (°C / °F) | Rainfall | Rainy Days | Avg Rainfall |
| North | 23–32°C / 73–90°F | Afternoon showers | 10–15 days | 150–200 mm |
| Central | 26–33°C / 79–91°F | Short heavy showers | 8–12 days | 100–150 mm |
| East Coast | 24–33°C / 75–91°F | Occasional showers | 5–8 days | 80–120 mm |
| West Coast | 24–31°C / 75–88°F | Frequent rain, rough seas | 12–18 days | 200–300 mm |
Data Source: Based on the Thai Meteorological Department (TMD) 10-year average data (2015–2024).
Northern Thailand (Chiang Mai, Chiang Rai)
Chiang Mai in July is cool, lush, and misty, around 24–34°C. Quick afternoon showers make waterfalls spectacular, while trails can be slippery. Chiang Rai is slightly cooler, and the Golden Triangle hills often sit under fog.
Central Thailand (Bangkok, Ayutthaya)
Bangkok in July is hot and humid, with short afternoon storms. Most sightseeing is fine—just carry an umbrella. Ayutthaya's historical ruins look refreshed after rain, and Khao Yai National Park comes alive with roaring waterfalls, wildlife, and jungle trails.
East Coast (Koh Samui, Koh Phangan, Koh Tao)
Koh Samui in July stays mostly dry, with calm seas and plenty of sun. Phangan and Tao follow the same pattern. The beaches, snorkeling spots, and diving sites are ideal this month.
West Coast (Phuket, Krabi, Phi Phi)
July is the peak rainy season here, 25–31°C. Phuket in July sees heavy rain and rough seas. Krabi and Phi Phi face the same conditions, while Koh Lanta is slightly calmer but still wet. Many islands or boat tours may close.
Safety Tips for Traveling in Thailand in July
Short-term flooding can happen in July. It is common even in Bangkok or Koh Samui. Heavy rainfall can cause ankle-deep flooding. But that usually clears in 10–20 minutes.
If you're visiting waterfalls or caves:
- Always check warning signs at the entrance.
- If the water turns murky or brown, leave immediately—this is a classic flash flood signal.
Other tips:
- Avoid hiking during heavy rains, especially in Northern national parks.
- Check local weather updates before booking boat trips on the Andaman coast.
Is July a Good Time to Visit Thailand?
Slowing down together in Koh SamuiJust to give you a quick answer: yes, it's worth traveling to Thailand in July, especially if it's the only time you can travel.
Sure, it's not like December or January when the weather is less humid and cooler, but it's still manageable.
Here's what July actually feels like:
- It doesn't rain all day. Showers often last 30–60 minutes, then clear up.
- You might get several dry days in a row, depending on luck and region.
- The upside? Fewer tourists and lower prices compared to December–February.
If you prefer fewer crowds, July is a surprisingly comfortable month to explore. Just travel smart—pick the right region, keep your schedule flexible, and pack properly—you can enjoy lush scenery, quieter beaches, and lower travel costs.
If you are seeking the best weather to visit Thailand, you can see our guide: Best & Worst Time to Visit Thailand.
The Best Places to Visit in Thailand in July
July brings Thailand to life. The rain cools the air, the forests turn bright green, and the scenery feels fresh and alive.
If you travel in July, these are the places I would like to recommend:
1. Chiang Mai– Misty Mountains and Fresh Air
Sticky Waterfall in Chiang MaiIn July, Chiang Mai is refreshing and lush. It is beautifully washed clean by short bursts of rain.
The mountains around the city often wake up wrapped in fog, and mornings on Doi Suthep or Doi Inthanon can feel almost otherworldly.
Waterfalls like Mae Sa and Mon Tha Than run strong and clear—perfect for an easy nature break.
2. Chiang Rai – Temples That Glow After Rain
The Blue Temple in Chiang RaiChiang Rai slows down in July, and the rain gives everything a deeper color. The White Temple and Blue Temple look even more striking against the grey sky.
Up in Mae Salong or the Golden Triangle, the hills often sit under drifting fog. It's a dreamy time to wander, take photos, and enjoy the calm.
3. Sukhothai – – Ruins Wrapped in Green
Sukhothai Historical ParkSukhothai changes completely in July. The dry-season heat disappears, and the ruins sit among bright green fields and still ponds.
Cycling through the historical park after a light rain feels quiet and intimate. Many mornings, it feels like you have the entire ancient city to yourself.
4. Bangkok – A Rain-Kissed City Full of Comfort
The Grand Palace in Bangkok on an Overcast DayBangkok gets short afternoon downpours, but they pass quickly. When it rains, you can dip into ICONSIAM, the National Museum, or the Bangkok Art & Culture Centre.
When the skies clear, the Chao Phraya lights up with pink sunsets and cooler breezes. July is also peak fruit season—durian, mangosteen, rambutan—everything tastes better this month.
5. Khao Yai – Forests at Their Greenest
Khao Yai National ParkKhao Yai is lush and full of life in July. The waterfalls roar, especially the 80-meter Haew Narok. Wildlife becomes more active too—you might spot hornbills, deer, gibbons, or even elephants. Trails can be muddy, but the fresh jungle air makes up for it.
A quick note on Khao Sok (another famous national park in the south): it is beautiful in the rainy season, but July can be unpredictable. Caves often close, trails get slippery, and Cheow Lan Lake may be hidden behind clouds. It's better for flexible, adventure-minded travelers.
The Best Islands to Visit in Thailand in July
Koh SamuiJuly beach weather depends entirely on which coast you pick.
The East Coast: Koh Samui, Koh Tao, and Koh Phangan in July stay mostly dry, with calm seas and plenty of sunshine all the way until mid-October. If you want reliable beach weather in July, this is where you go.
The West Coast: Phuket, Krabi, and Phi Phi in July are quite different. They get rough seas and frequent storms. Many national parks close, and boat tours are often cancelled for safety. If you visit Phuket in July, stick to relaxing on the beach and avoid booking boat trips.
My Experience: I once did a Phuket island-hopping trip in July—sunny morning, stormy afternoon, terrifying waves on the way back.
See more about Phuket vs Koh Samui.
The Crowds and Cost in Thailand in July
July is low season in Thailand, and the whole country feels noticeably calmer.
Bangkok and Chiang Mai are still lively, but you won't face the holiday crowds you normally see from December to February. Temples feel quieter, the streets feel more relaxed, and you can book tours or activities at the last minute without stress.
Prices drop too. Hotels and flights can be 30–50% cheaper than in the winter months, which makes July one of the best-value times to visit.
What to Pack and Wear
Avoid white sneakers unless you don't mind them getting ruined. Flip-flops are safer. Lightweight tropical clothing is ideal. High-altitude mountains may be below 20°C; bring a jacket. Humidity can cause frizzy hair.
FAQ – Thailand in July
Q: How heavy is the rain in July?
A: Rain usually comes in short bursts of 30–60 minutes. Continuous all-day rain is rare.
Q: Can I do island hopping in July?
A: On the East Coast (Samui, Phangan, Tao), yes. On the West Coast (Phuket, Krabi), it's risky—storms and rough seas are common.
Q: Is it hot in July?
A: Temperatures remain warm, 24–34°C depending on the region, with high humidity.
Q: Are national parks open in July?
A: Yes, but some West Coast parks close early due to rough seas. Always check official websites.
Q: Will I face floods?
A: Short-term flooding can happen, especially after heavy rain, but it usually clears within 20 minutes.
Q: Is Phuket worth visiting in July?
A: Phuket in July is mostly rainy. Great for relaxing by the beach, but boat tours are often cancelled due to rough seas.
Ready to Plan Your July Trip?
If July is your travel window, Thailand can be an amazing choice. If you want help choosing the right route or picking the best-weather destinations, feel free to reach out. We are always happy to share more tips or help you build a smooth, rain-friendly itinerary.
You could also check out our Thailand tours for inspiration.
- 10-Day Classic Thailand Tour: Bangkok, Chiang Mai, and Koh Samui
- 12-Day Thailand Wonders Tour: Bangkok, Kanchanaburi, Chiang Mai, and Krabi
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