Thailand is beautiful but not recommended to visit in September and October. To be honest!!!
To be honest! Thailand is beautiful, but I really don’t recommend going in September or October😭
Here’s an honest, unfiltered travel guide to Thailand! No exaggeration or negativity, just real experiences from someone who’s been there. If you’re planning a trip to Thailand soon, you must read this!
First, some heartfelt truth: Thailand is definitely a high-value vacation paradise! Crystal-clear beaches, night market food, a laid-back vibe, affordable prices—everywhere you go is healing scenery, and it looks great all year round✨
But! Here’s the key point! September and October are the least recommended months to travel in Thailand.
Many travel bloggers only mention that the rainy season means fewer crowds and cheaper prices, but they never share the real pitfalls! Today, I’m laying out all the truths to help you avoid 90% of travel traps and refuse to waste money on a bad experience!
🌧️ Why you absolutely shouldn’t go in September and October: the real downsides are discouraging
1. Sudden heavy rainstorms that ruin your entire itinerary
September is the peak of the rainy season in Thailand, and October is the tail end, with extremely unstable weather! It’s not just light rain! It’s heavy afternoon downpours with sudden strong winds, striking without warning⛈️
It usually rains every day from 3 to 6 PM, lasting 2 to 3 hours. It’s not something you can just dodge!
Low-lying roads in Bangkok, river areas, and popular night markets often flood badly. Some streets even experience temporary waterlogging. Walking with soaked shoes and muddy pants is normal.
The worst part is outdoor plans get completely canceled! The Grand Palace, Wat Arun, beach photoshoots—all ruined. Freshly done makeup and carefully chosen outfits get destroyed within 10 minutes by rain and sweat, making it impossible to get good photos!
2. Hot, humid sauna-like days that feel unbearable
During these two months, temperatures stay between 25–34℃ with humidity over 90%+
Though the temperature isn’t extreme, it feels like 45℃+! The heat and humidity are suffocating, your skin is always sticky, sunscreen and setting powder wear off completely, and you sweat so much your clothes stick to you all day, making you uncomfortable🥵
Whether shopping, visiting night markets, or sightseeing, you’ll be sweating heavily after just a few steps, with no sense of relaxation—pure suffering!
3. High risk for island trips, many sea activities suspended
This is the biggest pitfall in September and October!!
Popular southern islands like Phuket, Koh Samui, and Krabi have the roughest seas of the year, with strong currents and huge waves🌊
West coast beaches like Patong, Kata, and Karon often display red flags banning swimming and snorkeling.
Most island-hopping tours, diving, and sailing trips are canceled, with only a few nearshore activities barely operating.
Flying all the way to Thailand for clear waters and island vacations but unable to go out to sea or enjoy water activities means your island experience is zero—such a huge loss!
4. Chaotic traffic and disguised price hikes
Heavy rain causes citywide traffic paralysis, with constant congestion on main roads.
Official taxis charge high premiums, and tuk-tuks take advantage of the rainy season to double or triple prices, with frequent overcharging.
Traveling in the rain is difficult, forcing many to accept expensive unlicensed cars. Thailand’s usually affordable transportation suddenly loses all value!
5. Mosquito infestations and damp mold
The constant heat and rain cause mosquitoes and cockroaches to multiply wildly.
Areas near the sea, night markets, and lots of greenery have many mosquitoes, leading to severe bites.
The air is extremely humid, causing hotel walls and wardrobes to get damp. Clothes take days to dry after washing and may even develop mild mold, seriously affecting your stay.
✅ Objectively speaking: the only advantage of going to Thailand in September and October
No exaggeration, the rainy season isn’t without benefits.
1. Definitely the off-season! The lowest prices online! Airfares and 5-star hotels are cut in half, 30%–50% cheaper than peak season.
2. Fewer crowds all the way! No lines at popular spots, no squeezing in night markets, no avoiding people in photos.
3. After the rain, Thailand’s vegetation is super green, the air is especially fresh, and the atmosphere is unique.
In short: if you want to save money, relax in a hotel, and don’t care about outdoor activities, go for it; if you want to visit islands, see sights, or take photos, definitely don’t come!
🌟 Best time to visit Thailand all year (must save)
✅ Best months: November to February (dry season golden period)
Comfortable temperatures all year, little rain, mostly sunny days, calm seas.
You can freely go out to sea, island hop, snorkel, and night markets and outdoor attractions are fully open.
The water is clearest, perfect for photos, plus it’s the time for the lantern festival and New Year’s peak season, with a lively atmosphere that suits all travel needs.
✅ Second choice: March to April
Clear weather with little rain, just a bit hot, moderate prices, good for budget travelers.
❌ Months to avoid: September and October (peak rainy season)
Island activities are limited, heavy rain is frequent, travel experience is poor. Beginners, photographers, and island lovers should avoid!
💡 If you must go in September or October! A complete survival guide to avoid pitfalls
If your flight and hotel are already booked and can’t be changed, keep this guide to minimize risks!
1. Itinerary planning: skip all island and sea activities!
Focus on inland cities like Bangkok and Chiang Mai, mainly indoor malls, cafes, museums, and night markets. Don’t plan island hopping, diving, or long beach trips.
2. Must-have gear
Bring a waterproof phone case, portable folding umbrella, quick-dry clothes, and non-slip waterproof sandals.
No need for heavy jackets; bring only lightweight, quick-dry clothes for easy changes.
3. Travel tips
Avoid roadside unlicensed cars and zero-cost or suspicious sea tours!
Use Grab for all rides for transparent pricing and no overcharging. Don’t trust strangers holding signs at the airport.
4. Protection essentials
Carry strong mosquito repellent and insect spray.
Bring stomach medicine and cold medicine, as the rainy season’s humidity can cause stomach issues and colds.
5. Flexible itinerary
If the morning is sunny, prioritize going out to sights and taking photos.
When expecting afternoon storms, stay in malls or hotels and avoid going out.
✨ Final thoughts
Thailand’s beauty deserves to be experienced in the best season.
Don’t settle for a discounted experience in the rainy season just for a low price.
Choosing the right time lets you truly unlock Southeast Asia’s relaxation and romance❤️
Wishing all travelers a perfect trip to Thailand!