Verdict: Excellent month
Bangkok Weather in December
December runs warm in Bangkok, with daily highs around 31°C (88°F) and nights near 22°C (72°F). Rain is occasional — about 4 wet days in a typical year. Overall, December is one of the best months of the year to be in Bangkok.
Average high
31°C / 88°F
Average low
22°C / 72°F
Rain days
~4
Precipitation
15 mm
What to pack for Bangkok in December
- 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
December 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)