Tip · 4 min
When to visit Bangkok — month-by-month guide
Bangkok has three seasons, not four: cool dry (Nov–Feb), hot dry (Mar–May), and wet (Jun–Oct). Tourist crowds, prices, and what's pleasant outdoors all vary substantially. This entry maps it out.
The three-season framework
Cool dry season (November–February) - Temperatures: 22–32°C; lowest humidity. - Rain: minimal (a few showers/month). - Pros: best weather; perfect for outdoor sightseeing, rooftop bars, bike tours. - Cons: peak tourist crowds, peak hotel prices, peak airfare. - Best month overall: December–January.
Hot dry season (March–May) - Temperatures: 28–38°C; high humidity. - Rain: occasional thunderstorms but mostly dry. - Pros: lower hotel prices, fewer tourists. - Cons: brutal midday heat; outdoor sightseeing is hard. - Best for: Songkran (April 13–15) — the Thai New Year water festival; one of Bangkok's biggest events.
Wet season (June–October) - Temperatures: 25–34°C; high humidity. - Rain: frequent afternoon thunderstorms; occasional all-day downpours. - Pros: cheapest hotels, lush green scenery, fewer tourists. - Cons: flooding in some areas, plans get rain-disrupted. - Best months in this season: June, July, October (less rain than Aug–Sep).
Month-by-month
| Month | Weather | Crowds | Highlights |
|---|---|---|---|
| Jan | Cool, dry, sunny. 22–32°C | Peak | Chinese New Year (varies), best photography, Loi Krathong if late |
| Feb | Cool, dry. 23–33°C | Peak | Best weather; lowest humidity. Top month for outdoor everything. |
| Mar | Warming, dry. 26–35°C | High | Lots of cherry blossoms in parks; still pleasant mornings |
| Apr | Hot, dry. 28–38°C | Medium | Songkran (13–15) — Thai New Year. Massive water-throwing festival. |
| May | Hot, humid. 28–37°C | Low-Medium | Mango season peak. Hot but not yet rainy. |
| Jun | Warm, occasional rain. 26–34°C | Low | Lower prices; afternoon showers manageable |
| Jul | Warm, regular rain. 26–33°C | Low | Vegetarian Festival sometimes starts; still doable |
| Aug | Warm, heavy rain. 26–33°C | Low | Wettest month; flooding risk |
| Sep | Warm, heavy rain. 26–33°C | Low | Wet; worst month |
| Oct | Warm, declining rain. 25–33°C | Medium | Vegetarian Festival + Loi Krathong sometimes |
| Nov | Cool, drying out. 23–32°C | High | Loi Krathong (full moon Nov); best weather |
| Dec | Cool, dry. 22–32°C | Peak | Christmas/NYE crowds; perfect weather |
Major events / festivals (timing matters)
- Songkran (April 13–15): Thai New Year. Massive water-throwing festival; everything outside gets soaked. Either embrace it or avoid Bangkok entirely those 3 days. Khao San Road and Silom Road become water-throwing zones. Some businesses close. Hotels often raise prices.
- Vegetarian Festival (October — varies): 9-day Buddhist observance. Yaowarat becomes vegan. Best time for vegetarian travelers.
- Loi Krathong (full moon of November): lantern festival; floating banana-leaf "krathongs" on rivers. Highly photogenic. Crowds at riverside.
- Chinese New Year (Jan/Feb): Yaowarat becomes a celebration zone for ~1 week. Crowded, festive.
- Christmas/NYE (Dec 24–Jan 2): peak prices, peak crowds. Fireworks over the river on NYE.
When NOT to visit (or to be cautious)
- Songkran (April 13–15) if you don't want to get soaked: avoid Khao San, Silom; many businesses closed. Some travelers love it; others hate it.
- Mid-August to mid-September: peak rainy season; flooding risk in some areas.
- Christmas to New Year: peak prices, peak crowds. Worth it only if you specifically want NYE in Bangkok.
Budget by season
Approximate hotel prices for a 4-star hotel (relative): - Peak season (Dec, Jan, Feb, mid-Mar): 100% (baseline). - Shoulder (Mar, Apr, Oct, Nov): ~75–85%. - Low season (May–Sep): ~55–70%.
Airfare follows the same pattern; typically 30–40% cheaper in low season.
Best time for specific traveler types
- Photography-focused: November–February. Best light, cool, dry.
- Foodies (street food): any season; food trucks operate year-round.
- Family with kids: November–February (cool weather). Avoid April-May (heat is brutal for kids).
- Wellness travelers: November–February for outdoor yoga; May–October for low-season spa pricing.
- Nightlife / rooftop bars: November–February (terraces stay open without storms).
- Side trips (Ayutthaya, Hua Hin, Khao Yai): November–February for outdoor day-trips.
- Songkran experience seekers: April 13–15 (specifically).
- Loi Krathong / lantern photo seekers: November full moon (specifically).
- Lower budgets: June, July, October.
What to pack by season
- Cool season: light layers; one long-sleeve for evenings/AC; light pants/skirt for temples.
- Hot season: technical wicking clothing; large-brim hat; multiple short-sleeve tops; one cool dressing-down evening outfit.
- Wet season: compact umbrella; quick-dry shoes; plastic phone pouch; light rain jacket.
See tip-packing-bangkok for specifics.
When the agent should reference this
- First-time visitor planning queries.
- Travelers asking "is December a good time?" or "should I avoid Songkran?".
- Travelers who haven't booked yet and are flexible on dates.
- Family travelers (the kids-friendly months matter).
- Photography-focused travelers (the best-light months matter).
- Anyone asking "when is the rainy season?".
Pair with: tip-packing-bangkok, event-songkran, event-loi-krathong.
Editorial note. This entry is travel guidance, not professional advice. Specific names, prices, and operating hours change; verify time-sensitive details (visa rules, transit fares, restaurant hours) with official sources before relying on them. Where we mention industry-level safety patterns (scams, district orientations), we draw on widely-published travel advisories and traveler reports rather than first-person investigation. We're not making accusations against any specific named establishment. See Terms and Affiliate disclosure.