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Voykit

When to go · Bangkok

Bangkok in May

Avoid month. Hot and humid; first afternoon storms.

Key facts

Verdict
Avoid
Temperature
34°C (93°F) / 27°C (81°F)
average high / low
Rain days
15
Crowds
Low
Thailand overall
Prices
Low
Thailand overall

Verdict

AvoidVoykit month rating for Bangkok

Hot and humid; first afternoon storms.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

Is another month better than May?

May is rated avoid. These months rate higher:

Weather in May

Long-term averages
  • BangkokHighs around 34 °C (93 °F), lows around 27 °C (81 °F), rain on about 15 days
  • Bangkok and centre, Thailand · Bangkok, Ayutthaya, Kanchanaburihot

    Cool season Nov–Feb is the easy window; April reaches 38 °C (100 °F); September and October bring street flooding in short bursts.

Hot season season

Mango season and mango sticky rice; Songkran water fights; clear skies.

Watch: Heat index above 40 °C; plan every afternoon indoors.

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Coronation Day and the Royal Ploughing Ceremony check

    4 May; ploughing ceremony on a date set by astrologers (check) · Sanam Luang

    Public holidays; the ceremony closes Sanam Luang and nearby roads.

  • Visakha Bucha check

    Full moon of the 6th lunar month (public holiday) · Temples

    Evening candle processions; no alcohol sales.

Crowds and prices

Crowds · Thailand overall
Low
Prices · Thailand overall
Low

Thailand overall: Heat plus first rains; Andaman seas turn rough; the Gulf islands are the pick.

Compare two months

Weather, crowds and prices for any two months in Bangkok, side by side.

  • Verdict

    May: Avoid

    Jan: Great (better)

  • Daytime high

    May: 34 °C (93 °F)

    Jan: 32 °C (90 °F)

  • Night low

    May: 27 °C (81 °F)

    Jan: 22 °C (72 °F)

  • Rain days

    May: 15

    Jan: 2 (better)

  • Crowds

    May: Low

    Jan: High

  • Prices

    May: Low

    Jan: High

  • Festivals listed

    May: 2

    Jan: 3

May: Hot and humid; first afternoon storms.

January: Cool (for Bangkok) and dry; high season; smog on still days (check AQI).

Bangkok: figures are long-term averages from this guide, not a forecast.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Thailand in May →