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wherewarm

Nevada, USA

Las Vegas weather in January

Is it warm? No. January in Las Vegas is cool: afternoons average 15°C and nights 5°C. Most days (80%) peak between 10°C and 19°C.

Cool · average high

15°C

25°C or more on almost no days; 20°C or more on about one in ten days.

  • Average low5°overnight
  • Sea—inland
  • Rainy days216 mm in the month
  • SkySome cloud40% cloud · 45% clear days

How warm it really gets

Every January afternoon from 2011–2025: 465 days. Most (80%) peaked between 10° and 19°.

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

January, year by year

The average January high in each year. The warmest, 2014, averaged 18°C; the coolest, 2023, 12°C.

Average January high by year: 2011: 14.1°C, 2012: 16.4°C, 2013: 13.2°C, 2014: 18.3°C, 2015: 16.9°C, 2016: 13.4°C, 2017: 12.8°C, 2018: 17.6°C, 2019: 14.1°C, 2020: 15°C, 2021: 15.3°C, 2022: 16°C, 2023: 12.2°C, 2024: 14.7°C, 2025: 14.6°C.

Compared with home

Average January highs. Expect rain on about 2 days (16 mm in a typical month).

  • Las Vegas15°
  • Cork9°
  • London9°
  • Dublin8°
  • Belfast8°
  • Glasgow7°
  • Manchester7°

Other months

Las Vegas all year · Where else is hot in January

Warmer in January, not much further

Flying times are estimates from Dublin; Las Vegas is about 10h 15m.

  • Cool in Jan

    18°C average high

    avg high · 7° at night

    25°C+ on rarely

    Alicante & Costa Blanca

    Spain

    Sea
    14°
    Rain
    2 days
    Sky
    Some cloud
    From Dublin
    ≈ 2h 30m

  • Cool in Jan

    18°C average high

    avg high · 8° at night

    25°C+ on rarely

    Valencia

    Spain

    Sea
    15°
    Rain
    3 days
    Sky
    Some cloud
    From Dublin
    ≈ 2h 30m

  • Cool in Jan

    17°C average high

    avg high · 9° at night

    25°C+ on rarely

    Mallorca

    Balearic Islands, Spain

    Sea
    16°
    Rain
    5 days
    Sky
    Often cloudy
    From Dublin
    ≈ 2h 30m

Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Las Vegas airport. Rainy days = days with 1 mm of rain or more, as weather stations count them. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology