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Thailand

Bangkok weather in December

Is it warm? Yes. December in Bangkok is hot: afternoons average 31°C and nights 22°C. Most days (80%) peak between 28°C and 33°C.

Hot · average high

31°C

25°C or more on almost every day.

  • Average low22°overnight
  • Sea—inland
  • Rainy days215 mm in the month
  • SkyOften cloudy53% cloud · 18% clear days

How warm it really gets

Every December afternoon from 2011–2025: 465 days. Most (80%) peaked between 28° and 33°.

Number of December days by daily high, 2011–2025.

December, year by year

The average December high in each year. The warmest, 2024, averaged 33°C; the coolest, 2013, 29°C.

Average December high by year: 2011: 29.9°C, 2012: 31.5°C, 2013: 28.6°C, 2014: 30.4°C, 2015: 31.5°C, 2016: 30°C, 2017: 28.9°C, 2018: 31.5°C, 2019: 31.9°C, 2020: 30.8°C, 2021: 30.7°C, 2022: 30.3°C, 2023: 31.6°C, 2024: 33.2°C, 2025: 32.4°C.

Compared with home

Average December highs. Expect rain on about 2 days (15 mm in a typical month).

  • Bangkok31°
  • Cork10°
  • Dublin9°
  • London9°
  • Belfast8°
  • Manchester8°
  • Glasgow7°

Other months

Bangkok all year · Where else is hot in December

Other warm places in December

Flying times are estimates from Dublin; Bangkok is about 12h 30m.

  • Warm in Dec

    24°C average high

    avg high · 14° at night

    25°C+ on 3 in 10 days

    Sharm el-Sheikh

    Egypt

    Sea
    25°
    Rain
    0 days
    Sky
    Mostly clear
    From Dublin
    ≈ 5h 45m
  • Warm in Dec

    25°C average high

    avg high · 22° at night

    25°C+ on 5 in 10 days

    Sal

    Cape Verde

    Sea
    25°
    Rain
    1 day
    Sky
    Often cloudy
    From Dublin
    ≈ 5h 45m
  • Warm in Dec

    26°C average high

    avg high · 21° at night

    25°C+ on 8 in 10 days

    Boa Vista

    Cape Verde

    Sea
    25°
    Rain
    1 day
    Sky
    Often cloudy
    From Dublin
    ≈ 5h 45m

Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology