Verdict: Good month
Bangkok Weather in January
January runs warm in Bangkok, with daily highs around 32°C (90°F) and nights near 22°C (72°F). Rain is a non-issue, with only ~3 wet days in an average year. Overall, January is a solid month to visit Bangkok.
Average high
32°C / 90°F
Average low
22°C / 72°F
Rain days
~3
Precipitation
14 mm
What to pack for Bangkok in January
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Comfortable walking shoes — every guide on this site assumes you'll use them
January against the rest of the year
Warmest in Bangkok: Apr (34°C / 93°F) · Coolest: Sep (31°C / 88°F) · Wettest: Sep (~28 rain days)
32°
22°
Jan
33°
24°
Feb
33°
26°
Mar
34°
27°
Apr
34°
27°
May
33°
26°
Jun
32°
26°
Jul
32°
26°
Aug
31°
25°
Sep
31°
24°
Oct
31°
24°
Nov
31°
22°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)