Thailand Bangkok Weather in January — Climate Guide
January in Bangkok is Excellent
January is Excellent for Bangkok.
January is Bangkok's perfect-weather peak season — lowest humidity (60-65%), no rain, clear skies, and daytime temperatures 31-32°C / 88-90°F that feel manageable thanks to the dryness. Evenings cool to 21-23°C / 70-73°F.
This is the most expensive month for hotels and flights — book 6+ weeks ahead, especially around Christmas/New Year holidays carrying into early January. Hotel rates run +30-50% above shoulder season; flights from Europe and US are 25-40% above off-peak.
Travel score
Bangkok January Weather Stats
Avg High
32°C
Avg Low
21°C
Rainy Days
1
9mm total
Sunshine
9h
Daily avg
Humidity
65%
Comfortable
UV Index
9
Very high
Wind
12 km/h
Gusts 22
Crowds
Very busy
At attractions
January Sunrise & Sunset
Air Quality
PM2.5
30 μg/m³
PM10
50 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
36°C
Nighttime
21°C
Humidity and wind affect how the actual temperature feels.
Wind
12 km/h
Max gust 22 km/h
Activities Recommended for January
January Travel Pros & Cons
Pros
- Best weather of the year — clear, dry, lowest humidity
- All outdoor activities ideal
- Long sunny days for photography
Cons
- Most expensive month for hotels and flights
- Maximum tourist crowds at all major sights
- Strong UV (index 9-10) — sun protection essential
January Events & Festivals
- Peak tourist season — January is Bangkok's busiest month
- Chinese New Year (varies — late January or February)
- Silom flower market peak
Bangkok in January — Full Picture
January is Bangkok's perfect-weather peak season — lowest humidity (60-65%), no rain, clear skies, and daytime temperatures 31-32°C / 88-90°F that feel manageable thanks to the dryness. Evenings cool to 21-23°C / 70-73°F.
This is the most expensive month for hotels and flights — book 6+ weeks ahead, especially around Christmas/New Year holidays carrying into early January. Hotel rates run +30-50% above shoulder season; flights from Europe and US are 25-40% above off-peak.
Chinese New Year (varies year to year — late January or February) brings major celebrations to Yaowarat (Chinatown). The Chinatown gate area is closed to traffic for 3-day festival with dragon dances, lion performances, and red lanterns lining the streets. Hotel rates around Yaowarat surge during festival week.
This is also the optimal time for day trips to Ayutthaya, floating markets, and beach destinations like Hua Hin or Pattaya — clear weather, no afternoon storms.
The trade-off: maximum tourist crowds at Grand Palace, Wat Pho, Wat Arun. Arrive at opening (8:30 AM Grand Palace, 8:00 AM Wat Pho, 8:00 AM Wat Arun) to beat tour buses.
What to Wear & What to Pack
Light short sleeves, breathable fabrics. Hat and sunglasses for strong tropical sun. Light cardigan for over-air-conditioned malls and BTS trains.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
35°C
25.7°C
7/mo
Summer (Jun·Jul·Aug)
33°C
25.3°C
15.3/mo
Autumn (Sep·Oct·Nov)
32.7°C
24.3°C
13/mo
Winter (Dec·Jan·Feb)
Current32°C
21.7°C
1.3/mo
Bangkok Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 32° | 21° | 1d·9mm | 9h | 65% | 9 | Very busy | Peak |
| February (Best) | 33° | 23° | 2d·28mm | 9.5h | 65% | 10 | Busy | Peak |
| 35° | 25° | 2d·30mm | 8.5h | 67% | 11 | Moderate | Shoulder | |
| 36° | 26° | 5d·65mm | 8h | 70% | 11 | Busy | Peak | |
| 34° | 26° | 14d·220mm | 7.5h | 75% | 10 | Quiet | Low season | |
| 33° | 26° | 14d·169mm | 7h | 75% | 10 | Quiet | Low season | |
| 33° | 25° | 16d·171mm | 6.5h | 76% | 10 | Quiet | Low season | |
| 33° | 25° | 16d·184mm | 6.5h | 76% | 10 | Quiet | Low season | |
| 33° | 25° | 18d·261mm | 6h | 78% | 10 | Quiet | Low season | |
| 33° | 25° | 16d·197mm | 6.5h | 76% | 10 | Quiet | Low season | |
| November (Best) | 32° | 23° | 5d·49mm | 8h | 70% | 9 | Busy | Shoulder |
| December (Best) | 31° | 21° | 1d·9mm | 9h | 65% | 9 | Very busy | Peak |
View Other Months
Bangkok January Hotel Picks
Frequently Asked Questions
Is January a good time to visit Bangkok?
Bangkok in January is Excellent. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Bangkok in January?
Bangkok January averages a high of 32°C and a low of 21°C.
Does it rain much in Bangkok in January?
Bangkok January averages 9mm of rainfall over about 1 rainy days.
What should I wear in Bangkok in January?
Light short sleeves, breathable fabrics. Hat and sunglasses for strong tropical sun. Light cardigan for over-air-conditioned malls and BTS trains.
What time are sunrise and sunset in Bangkok in January?
Bangkok January sunrise is 06:39 and sunset is 18:11, with 11h 32m of daylight.
What's the air quality like in Bangkok in January?
Bangkok January air quality (AQI) averages 70, rated Moderate. PM2.5 averages 30μg/m³.
What activities are recommended in Bangkok in January?
In January, Bangkok is great for Grand Palace + temple tour, Floating market day trips, Sky bar evenings.
Is January peak season in Bangkok?
Bangkok January crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Bangkok
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.