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Greece

Santorini weather in July

Is it warm? Yes. July in Santorini is hot: afternoons average 30°C and nights 24°C. Most days (80%) peak between 29°C and 32°C.

Hot · average high

30°C

25°C or more on almost every day.

  • Average low24°overnight
  • Sea24°average, 2022–2025
  • Rainy days00 mm in the month
  • SkyMostly clear1% cloud · 100% clear days

How warm it really gets

Every July afternoon from 2011–2025: 465 days. Most (80%) peaked between 29° and 32°.

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

July, year by year

The average July high in each year. The warmest, 2018, averaged 31°C; the coolest, 2022, 29°C.

Average July high by year: 2011: 30.3°C, 2012: 30.9°C, 2013: 29.6°C, 2014: 29.8°C, 2015: 29.8°C, 2016: 30.3°C, 2017: 30.2°C, 2018: 31.1°C, 2019: 29.8°C, 2020: 29.6°C, 2021: 30.8°C, 2022: 29.2°C, 2023: 31°C, 2024: 31.1°C, 2025: 30.6°C.

Compared with home

Average July highs. Rain is rare: less than one wet day in a typical month.

  • Santorini30°
  • London24°
  • Manchester21°
  • Dublin20°
  • Cork20°
  • Glasgow20°
  • Belfast20°

Other months

Santorini all year · Where else is hot in July

Warmer in July, not much further

Flying times are estimates from Dublin; Santorini is about 4h 15m.

  • Hot in Jul

    32°C average high

    avg high · 22° at night

    25°C+ on almost every day

    Alicante & Costa Blanca

    Spain

    Sea
    27°
    Rain
    0 days
    Sky
    Mostly clear
    From Dublin
    ≈ 2h 30m
  • Very hot in Jul

    36°C average high

    avg high · 21° at night

    25°C+ on almost every day · often 35°C+

    Seville

    Spain

    Sea
    Inland
    Rain
    0 days
    Sky
    Mostly clear
    From Dublin
    ≈ 2h 45m
  • Very hot in Jul

    33°C average high

    avg high · 20° at night

    25°C+ on almost every day · often 35°C+

    Olbia & Costa Smeralda

    Sardinia, Italy

    Sea
    26°
    Rain
    1 day
    Sky
    Mostly clear
    From Dublin
    ≈ 2h 45m

Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Santorini airport. 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