Bangkok Weather Forecast
Bangkok weather forecast. Check heat index, rain probability, and humidity for your trip to Thailand.
Bangkok has a tropical savanna climate with three seasons: hot (Mar-May), rainy (Jun-Oct), and cool (Nov-Feb). High humidity throughout.
November to February (cool season) offers the most pleasant weather with lower humidity and temperatures around 25-30°C.
Light, breathable clothing year-round. Modest dress for temples. Umbrella essential during rainy season.
Monthly climate baseline (1991-2020)
Use this modeled baseline to compare seasons, not as a forecast for a specific trip.
In this modeled baseline, Apr has Bangkok's highest average high (35.4°C / 96°F), Jan has the lowest average low (22.4°C / 72°F), and Sep has the most average precipitation (236.7 mm / 9.3 in).
| Month | Average high | Average low | Monthly precipitation |
|---|---|---|---|
| Jan | 31.8°C / 89°F | 22.4°C / 72°F | 14.9 mm / 0.6 in |
| Feb | 32.9°C / 91°F | 24.2°C / 76°F | 12.8 mm / 0.5 in |
| Mar | 34.1°C / 93°F | 26.2°C / 79°F | 41.1 mm / 1.6 in |
| Apr | 35.4°C / 96°F | 27.6°C / 82°F | 68.0 mm / 2.7 in |
| May | 34.6°C / 94°F | 27.6°C / 82°F | 130.3 mm / 5.1 in |
| Jun | 33.8°C / 93°F | 27.2°C / 81°F | 126.6 mm / 5.0 in |
| Jul | 33.2°C / 92°F | 26.8°C / 80°F | 134.1 mm / 5.3 in |
| Aug | 33.1°C / 92°F | 26.6°C / 80°F | 144.5 mm / 5.7 in |
| Sep | 32.5°C / 91°F | 26.2°C / 79°F | 236.7 mm / 9.3 in |
| Oct | 32.1°C / 90°F | 25.5°C / 78°F | 190.9 mm / 7.5 in |
| Nov | 32.2°C / 90°F | 24.3°C / 76°F | 42.3 mm / 1.7 in |
| Dec | 31.5°C / 89°F | 22.4°C / 72°F | 9.5 mm / 0.4 in |
AnyWeather calculated these monthly values from daily ERA5 reanalysis data for 1991-2020, retrieved through the Open-Meteo Historical Weather API. ERA5 is gridded model-and-observation reanalysis, not a reading from a city-center weather station. Coastlines, elevation, urban heat, and local storms can produce meaningful differences.
How to use this page's data
The current summary and forecast come from weather providers; monthly climate values are calculated from ERA5 reanalysis; best-time and clothing sections are editorial context. Use official local alerts for safety decisions.
See sources, update timing, and limitationsBangkok weather decisions for heat, monsoon rain, and street travel
Bangkok's heat and humidity can build before afternoon or evening storms, while intense rain may slow road travel and flood local streets. The useful forecast combines heat exposure, rain timing, and the route between air-conditioned and outdoor spaces.
- Hot-season days
- Start exposed visits earlier, check the feels-like value, carry water, and schedule cooling breaks rather than relying on shade alone.
- Monsoon travel
- Allow extra transfer time, keep rain protection accessible, and avoid assuming that a short storm will have no effect on roads or walking routes.
- River and outdoor plans
- Check official heavy-rain, storm, and wind notices before river transport, markets, rooftop venues, or long outdoor itineraries.
What to watch
Extreme heat, thunderstorms, lightning, heavy rain, local flooding, and strong monsoon conditions can affect Bangkok and travel elsewhere in Thailand. The Thai Meteorological Department publishes the official warnings.
Official warnings: Thai Meteorological Department warnings and eventsEditorial context reviewed July 16, 2026
Common Questions
Common questions about Bangkok weather
When is the best time to visit Bangkok?
November to February (cool season) offers the most pleasant weather with lower humidity and temperatures around 25-30°C.
What is the current weather in Bangkok?
Check the provider-supplied current weather summary above for temperature, humidity, wind, and its update time.