Weather in Athens in October
Greece · 20-year averages, October
Prime time. October is about as good as Athens gets. Highs average 23.7 °C, lows 16.5 °C, and rain falls on 6 days — nothing in the month is working against you.
October ranks 2 of 12 in Athens. Only May scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest October day reached 31.4 °C and the coldest night fell to 8.9 °C, and the wettest single day dropped 73 mm — roughly 149% of the month's rain in one day.
October is moderately variable: 2 mm in the driest year against 117 mm in the wettest, around an average of 49 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.
Wind is light at 12 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 71%.
How October sits in the year
The month is on the way down: 5.2 °C cooler than September, with November dropping another 5 °C. The first week and the last are not the same trip.
Daylight in October
11.3 hours of daylight, losing 1.2 hours across the month. That is between Athens's extremes of 14.8 and 9.6 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 25.7 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, June is the trade worth considering — 13 points weaker on weather, and materially quieter.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
October in Athens versus nearby
If Athens is one option among several, the nearby comparison is worth making. Volos is close enough to be a coin toss — 2.8 °C cooler, 1 day more rain. Kalamata is close enough to be a coin toss — within a degree on temperature, 3 days more rain.
So: October is effectively as good as it gets here — 3 points behind May, which is inside the margin where the weather stops being the deciding factor and price starts being it.
Every month in Athens
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 12.7 | 7.2 | 12 | 66 | 81 | 9.8 | 55 |
| February | 13.5 | 7.3 | 10 | 58 | 81 | 10.8 | 60 |
| March | 16.2 | 8.9 | 8 | 53 | 77 | 11.9 | 74 |
| April | 19.7 | 11.3 | 6 | 30 | 71 | 13.1 | 88 |
| May | 25.4 | 15.8 | 5 | 21 | 62 | 14.2 | 92 |
| June | 30.3 | 20.6 | 4 | 19 | 55 | 14.8 | 79 |
| July | 32.9 | 23.3 | 2 | 11 | 51 | 14.6 | 70 |
| August | 32.8 | 23.5 | 2 | 8 | 53 | 13.7 | 71 |
| September | 28.9 | 20.5 | 5 | 29 | 61 | 12.5 | 82 |
| October | 23.7 | 16.5 | 6 | 49 | 71 | 11.3 | 89 |
| November | 18.7 | 12.7 | 9 | 69 | 78 | 10.2 | 79 |
| December | 14.2 | 9 | 10 | 86 | 81 | 9.6 | 61 |
See all twelve months in Athens, or where else to go in October.
Planning the rest of the trip
- Flight time to Athens how long you are actually in the air
- Athens time zone and the difference from home
- Days until your trip count down to the departure date