How hot is Bangkok in May?

Daytime highs in Bangkok in May average 34°C (93°F); nights drop to about 27°C.

Does it rain in Bangkok in May?

Expect around 20 rainy days and 161 mm of rainfall in May.

Is May a good time to visit Bangkok?

May is a challenging month to visit Bangkok — consider December–January instead. Overall travel score: 1.8/10. The best months are December–January.

Bangkok weather in May

May is a challenging month to visit Bangkok — consider December–January instead. Expect highs around 34°C, lows near 27°C, and about 20 days with rain.

1.8 · Challengingtravel score for May

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Avg high

34°C

Avg low

27°C

Rainfall

161 mm

Rain days

Sunshine

10.1 h/day

Daylight

12.6 h

What to pack for Bangkok in May

light, breathable clothing
sun protection (hat, SPF 50)
a compact umbrella or rain shell — rain is frequent

Humidity averages 76%; max daily wind around 17 km/h.

How May compares

Best months in Bangkok: December–January. See the full best time to visit Bangkok guide.

Bangkok in May: the details

In May, Bangkok sees average daytime highs of 34°C (93°F) and overnight lows of 27°C (80°F). Rainfall totals roughly 161 mm across 20 rainy days, and the sun shines about 10.1 hours per day with 12.6 hours of daylight mid-month. Relative humidity averages 76%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Bangkok, Thailand (13.75, 100.5) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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