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Spain

Cádiz & Costa de la Luz weather in September

Is it warm? Yes. September in Cádiz & Costa de la Luz is warm: afternoons average 27°C and nights 21°C. Most days (80%) peak between 23°C and 31°C.

Warm · average high

27°C

25°C or more on about seven in ten days; 20°C or more on almost every day.

  • Average low21°overnight
  • Sea22°average, 2022–2025
  • Rainy days322 mm in the month
  • SkySome cloud30% cloud · 60% clear days

How warm it really gets

Every September afternoon from 2011–2025: 450 days. Most (80%) peaked between 23° and 31°.

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

September, year by year

The average September high in each year. The warmest, 2017, averaged 28°C; the coolest, 2014, 25°C.

Average September high by year: 2011: 27°C, 2012: 26.2°C, 2013: 26.5°C, 2014: 24.9°C, 2015: 25.4°C, 2016: 28.3°C, 2017: 28.4°C, 2018: 28.2°C, 2019: 27.5°C, 2020: 27.1°C, 2021: 26.2°C, 2022: 26.1°C, 2023: 25.4°C, 2024: 25.6°C, 2025: 28°C.

Compared with home

Average September highs. Expect rain on about 3 days (22 mm in a typical month).

  • Cádiz & Costa de la Luz27°
  • London21°
  • Manchester18°
  • Dublin18°
  • Cork18°
  • Belfast17°
  • Glasgow17°

Other months

Cádiz & Costa de la Luz all year · Where else is hot in September

Warmer in September, not much further

Flying times are estimates from Dublin; Cádiz & Costa de la Luz is about 2h 45m.

  • Hot in Sep

    29°C average high

    avg high · 20° at night

    25°C+ on almost every day

    Alicante & Costa Blanca

    Spain

    Sea
    25°
    Rain
    4 days
    Sky
    Some cloud
    From Dublin
    ≈ 2h 30m
  • Hot in Sep

    28°C average high

    avg high · 20° at night

    25°C+ on 9 in 10 days

    Valencia

    Spain

    Sea
    26°
    Rain
    6 days
    Sky
    Often cloudy
    From Dublin
    ≈ 2h 30m
  • Hot in Sep

    28°C average high

    avg high · 21° at night

    25°C+ on 9 in 10 days

    Mallorca

    Balearic Islands, Spain

    Sea
    27°
    Rain
    6 days
    Sky
    Some cloud
    From Dublin
    ≈ 2h 30m

Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Cádiz. Sea: Copernicus ERA5, 2022–2025. 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