October weather forecastAthens, Greece

October
Weather in October
October in Athens is the epitome of a Mediterranean autumn. Though showers start to increase, they don’t detract from the overall pleasant climate. The temperatures continue their descent towards milder figures. The city basks in the spirit of the Athens Authentic Marathon, soaking up the gentle autumn sunshine. The sea temperature, although cooling down, remains appropriate for swimming.Temperature
The shift to October brings a decrease in the average high-temperature in Athens, falling from a warm 27°C (80.6°F) in September to an agreeable 21.9°C (71.4°F). Throughout October, Athens experiences a low-temperature average of 16.7°C (62.1°F).Humidity
In Athens, the average relative humidity in October is 65%.Rainfall
In Athens, Greece, in October, it is raining for 8.5 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, in Athens, there are 98.9 rainfall days, and 348mm (13.7") of precipitation is accumulated.Snowfall
In Athens, snow does not fall in April through December.Sea temperature
In Athens, in October, the average water temperature is 22.3°C (72.1°F).Note: Swimming in 22.3°C (72.1°F) waters may not appeal to those sensitive to cold. Yet, the presence of sunshine, the strength of the wind, and the air temperature can alter this experience. Some might even opt for a wetsuit for added comfort.
Daylight
In Athens, the average length of the day in October is 11h and 13min.On the first day of the month, sunrise is at 07:21 and sunset at 19:08 EEST. On the last day of October, in Athens, sunrise is at 06:50 and sunset at 17:27 EET.
Note: On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 03:00; consequently, the time zone reverts from EET to EEST.
Sunshine
In October, the average sunshine is 7h.UV index
In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 4 in October transforms into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Athens, Greece
- Average high temperature in October: 21.9°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (12.1°C).
- Average low temperature in October: 16.7°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (7.3°C).
Average pressure in October
Athens, Greece
- Average pressure in October: 1016.9mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.1mbar).
Average wind speed in October
Athens, Greece
- Average wind speed in October: 13.3km/h
The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is May (11.6km/h).
Average humidity in October
Athens, Greece
- Average humidity in October: 65%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (50%).
Average rainfall in October
Athens, Greece
- Average rainfall in October: 37mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in October
Athens, Greece
- Average rainfall days in October: 8.5 days
The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in October
Athens, Greece
- Average snowfall in October: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in October
Athens, Greece
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in October
Athens, Greece
- Average sea temperature in October: 22.3°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).
Average daylight in October /
Average sunshine in October
Athens, Greece
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 7h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in October
Athens, Greece
- Average sunshine days in October: 19.7 days
The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is February (14.1 days).
Average UV index in October
Athens, Greece
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in October
Athens, Greece
- Average cloud cover in October: 26
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in October
Athens, Greece
- Average visibility in October: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





