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Florida, USA

Miami weather in January

Is it warm? Mostly. January in Miami is mild: afternoons average 24°C and nights 18°C. Most days (80%) peak between 21°C and 27°C.

Mild · average high

24°C

25°C or more on about four in ten days; 20°C or more on about nine in ten days.

  • Average low18°overnight
  • Sea23°average, 2023–2025
  • Rainy days664 mm in the month
  • SkyOften cloudy54% cloud · 25% clear days

How warm it really gets

Every January afternoon from 2011–2025: 465 days. Most (80%) peaked between 21° and 27°.

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

January, year by year

The average January high in each year. The warmest, 2023, averaged 25°C; the coolest, 2018, 22°C.

Average January high by year: 2011: 23°C, 2012: 23.7°C, 2013: 25°C, 2014: 23.7°C, 2015: 24°C, 2016: 22.7°C, 2017: 24.8°C, 2018: 22.4°C, 2019: 24.1°C, 2020: 24.9°C, 2021: 24°C, 2022: 23.4°C, 2023: 25.2°C, 2024: 24.3°C, 2025: 23.4°C.

Compared with home

Average January highs. Expect rain on about 6 days (64 mm in a typical month).

  • Miami24°
  • Cork9°
  • Dublin8°
  • London8°
  • Belfast7°
  • Manchester7°
  • Glasgow6°

Other months

Miami all year · Where else is hot in January

Warmer in January, not much further

Flying times are estimates from Dublin; Miami is about 8h 45m.

  • Warm in Jan

    25°C average high

    avg high · 19° at night

    25°C+ on 6 in 10 days

    Boa Vista

    Cape Verde

    Sea
    24°
    Rain
    0 days
    Sky
    Often cloudy
    From Dublin
    ≈ 5h 45m

  • Hot in Jan

    30°C average high

    avg high · 21° at night

    25°C+ on almost every day

    The Gambia

    The Gambia

    Sea
    23°
    Rain
    0 days
    Sky
    Often cloudy
    From Dublin
    ≈ 6h

  • Warm in Jan

    27°C average high

    avg high · 24° at night

    25°C+ on almost every day

    Antigua

    Caribbean

    Sea
    27°
    Rain
    6 days
    Sky
    Some cloud
    From Dublin
    ≈ 8h

Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. 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