Marathon weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: June – September
What is the weather like in Marathon in October?
In October, Marathon is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sea averages 21.9 °C – refreshing for a swim. The sun shines for around 7 hours a day. Rain is rare: about 4 days bring 27 mm in total. All in all, October is a good month for a holiday in Marathon.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 99 | 74 | 28 |
| Day | 29° | 23° | 18° |
| Night | 19° | 15° | 11° |
| Sea | 24° | 22° | 19° |
| Sun | 9 h | 7 h | 4 h |
| Rain days | 3 | 4 | 7 |
More details for October
- Daylight
- 11 h 16 min07:31 – 18:48
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 38 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+3Europe/Athens
How the score comes together
- Temperatureweight 35 %72 %
- Seaweight 25 %70 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 20 %99 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- A jumper for the evenings
Marathon in October: quick answers
Is Marathon hot in October?
Warm rather than hot: in October, daytime highs in Marathon average 23 °C and nights cool to about 15 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Marathon in October?
Yes. In October the sea averages 21.9 °C – refreshing for a swim.
Does it rain much in Marathon in October?
Rain is rare: about 4 days bring 27 mm in total.
Marathon month by month
The whole year in MarathonAll destinations: GreeceWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences