Thailand weather in July
July deepens Thailand’s monsoon pattern: daily downpours, high humidity and swollen rivers—yet also fewer crowds and low-season bargains. Daytime highs sit in the low-30 °C / high-80 °F, but the “feels-like” is higher thanks to 80 %+ humidity.
1 | Quick-Look Table
| Region | Avg High °C | Rainfall (mm) | Typical Conditions | Travel Notes |
|---|---|---|---|---|
| Bangkok & Central | 32 – 33 | ≈ 110 | Daily downpours | Flash-flooded sois—plan indoor slots 14 – 17 h. |
| Chiang Mai & North | 30 – 31 | ≈ 170 | Lush, muddy trails | Waterfalls roar; trekking boots essential. |
| Isan / Mekong | 31 – 32 | ≈ 180 | Rain every 2–3 days | River cruises still run; levels rise quickly. |
| Gulf Dry-Side (Samui • Phangan • Khanom) |
31 | ≈ 90 | Brief squalls, long sun spells | Best beach bet; Khanom quieter & pink-dolphin cruises operate. |
| Koh Chang & East | 30 – 31 | 350 + | Torrential rain, landslides | Boat links limited; consider inland stays. |
| Phuket / Krabi (Andaman) | 29 – 31 | ≈ 300 | Red-flag beaches, rough seas | Surf season; ferries on reduced schedules. |
2 | July Highlights
- Rain rhythm — 30–60 min cloudbursts, mostly mid-afternoon.
- Dry-side beaches — Samui chain and Khanom average < 100 mm; ideal for snorkelling & relaxed sun.
- Lush scenery — Rice fields neon green, waterfalls in full flow.
- Crowds & Cost — Low season: resorts often 35–40 % under peak prices.
3 | Packing Essentials
- Light rain jacket, quick-dry shoes, spare socks
- Dry-bag for phone/camera
- Mosquito repellent (post-rain peak)
4 | Frequently Asked Questions (FAQ)
Q 1. Does it rain all day in Thailand during July?
No—storms are short (30–90 min) and often mid-afternoon. Plan outdoor activities for the morning.
Q 2. Which Thai beaches are driest in July?
The Gulf’s Samui-Phangan-Khanom strip is in a rain shadow, receiving roughly one-third of Phuket’s rainfall. Khanom is the quietest, known for pink-dolphin boat trips.
Q 3. Are treks around Chiang Mai safe in July?
Yes, with a licensed guide and proper boots—expect muddy paths and deeper river crossings.
Q 4. Is July good for budget travel in Thailand?
Definitely. It’s low season: five-star rooms and domestic flights are 30–40 % cheaper than in December–January.
Q 5. Where else in Indochina is drier than Thailand in July?
Central Vietnam (Hoi An, Da Nang) stays mostly dry, and Luang Prabang in Laos has shorter showers—both within Tonkin Voyage Travel’s network.
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