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Greece

Kos weather in October

Is it warm? Mostly. October in Kos is mild: afternoons average 23°C and nights 19°C. Most days (80%) peak between 21°C and 26°C.

Mild · average high

23°C

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

  • Average low19°overnight
  • Sea25°average, 2023–2025
  • Rainy days447 mm in the month
  • SkyMostly clear24% cloud · 69% clear days

How warm it really gets

Every October afternoon from 2011–2025: 465 days. Most (80%) peaked between 21° and 26°.

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

October, year by year

The average October high in each year. The warmest, 2023, averaged 26°C; the coolest, 2011, 21°C.

Average October high by year: 2011: 21.2°C, 2012: 23.6°C, 2013: 21.3°C, 2014: 21.8°C, 2015: 22.7°C, 2016: 22.2°C, 2017: 22.6°C, 2018: 23.1°C, 2019: 25.1°C, 2020: 25.2°C, 2021: 22.8°C, 2022: 23.6°C, 2023: 25.5°C, 2024: 24.8°C, 2025: 23°C.

Compared with home

Average October highs. Expect rain on about 4 days (47 mm in a typical month).

  • Kos23°
  • London15°
  • Dublin14°
  • Cork14°
  • Manchester14°
  • Belfast13°
  • Glasgow12°

Other months

Kos all year · Where else is hot in October

Warmer in October, not much further

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

  • Warm in Oct

    24°C average high

    avg high · 16° at night

    25°C+ on 4 in 10 days

    Valencia

    Spain

    Sea
    23°
    Rain
    5 days
    Sky
    Often cloudy
    From Dublin
    ≈ 2h 30m
  • Warm in Oct

    27°C average high

    avg high · 16° at night

    25°C+ on 7 in 10 days

    Seville

    Spain

    Sea
    Inland
    Rain
    6 days
    Sky
    Often cloudy
    From Dublin
    ≈ 2h 45m
  • Warm in Oct

    25°C average high

    avg high · 18° at night

    25°C+ on 6 in 10 days

    Hammamet

    Tunisia

    Sea
    25°
    Rain
    6 days
    Sky
    Some cloud
    From Dublin
    ≈ 3h 15m

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