When to visit

Is March rainy in Bangkok?

Updated 5 June 2026

Short answer

No. Bangkok in March is hot and dry. The rainy season doesn't start until May, and even April only sees occasional afternoon showers rather than sustained rain. March sits firmly in the hot dry season: 32-35°C, clear skies, and roughly 30-40mm of rain across the whole month, which is negligible.

Rain is not what Bangkok in March is about. Heat is.

March weather in Bangkok

March averages about 30-40mm of rain for the entire month, spread across maybe three or four brief showers. This is essentially dry. For context, August gets around 200-210mm. March is a different category entirely.

What you get instead is heat: 32-36°C daily highs, intense UV, and low-to-moderate humidity that's building toward the wet season but hasn't arrived yet. Mornings are the most comfortable window for outdoor sightseeing. By early afternoon, the heat from the concrete and the direct sun is the main obstacle.

When Bangkok's rainy season actually starts

May is when Bangkok's rainy season begins. April sees occasional isolated afternoon thunderstorms in the second half of the month as the season approaches, but these are brief and unpredictable rather than a reliable daily pattern.

June through September is when you actually need to plan around the rain: sustained downpours, afternoon flooding in low-lying areas, and the occasional day where you're better off staying near a BTS or MRT station.

What March is like on the ground

Temple visits are fine in the morning. Wat Pho, the Grand Palace, Wat Arun, and Chinatown are all comfortable before 11am. After noon, walking any distance outdoors is genuinely tiring and you'll be soaked in sweat within ten minutes.

The night markets, street food on Yaowarat, Ratchada Train Night Market, and Sukhumvit Soi 38 food stalls are all fine in the evenings, when the temperature drops to around 26-28°C and the day's heat dissipates.

Bangkok's indoor options are excellent year-round: MBK, Chatuchak (weekend only), Terminal 21, Emporium. In March the incentive to use them is higher than in December but lower than in August.

The practical takeaway

Plan outdoor Bangkok for mornings and evenings. Use air-conditioned everything from 11am to 4pm. Carry water, wear breathable clothes, and don't plan more than two or three hours of outdoor walking in a single stretch.

Rain is not a March concern. Heat is manageable if you're sensible about timing.

For the full March breakdown, see our Thailand in March guide.