Bangkok Weather in March
Planning a trip to Bangkok in March? Here's what the weather is really like as Thailand's hot season kicks into gear — and one air quality issue most travel videos don't mention.
March in Bangkok is hot, dry, and hazy. Highs climb from the low 90s°F at the start of the month into the upper 90s (mid-30s°C) by the end, with humidity starting to build ahead of the coming monsoon. Lows sit in the 70s and 80s. Rain stays minimal at just 2–4 days for the month, so this is still solidly in the hot and dry season — but the trade-off is regional haze from agricultural burning across Southeast Asia.
Air quality can drop meaningfully, especially the further north you travel toward Chiang Mai. It's not the worst month to visit Bangkok, but it's not the best either. If you can pick, February is cooler; if you're already booked, plan around the heat and check air quality daily. Meteorologist Ian Schwartz breaks down what to expect.
At a glance
What's covered
- Highs, lows, and how fast the heat ramps up
- Bangkok's three seasons: hot-dry, wet, and cool-dry
- Why March is still technically dry
- The regional haze and burning-season factor
- Air quality alerts and what to watch for
- How March compares to April (the hottest month)
Jump to a moment
Bangkok in March FAQ
What is the weather like in Bangkok in March?
Hot, dry, and hazy. Highs climb from the low 90s°F at the start of the month into the upper 90s (mid-30s°C) by the end, with humidity starting to build. Lows sit in the 70s and 80s. Rain stays minimal at just 2–4 days for the month — still solidly in the dry season.
What are Bangkok's three seasons?
Bangkok has three distinct seasons, not four. Hot-dry (roughly March–May), Wet/monsoon (May/June–October), and Cool-dry (November–February). Temperatures don't vary as dramatically as in temperate climates — the biggest shift is between wet and dry, not hot and cold.
Is March a good time to visit Bangkok?
Not the best, not the worst. If you can pick, February is cooler and clearer. If you're already booked, plan around the heat (indoor activities during midday, hydrate), check air quality daily, and consider skipping the northern Thailand leg — haze impacts are worse the further north you go.