Athens Weather in December
Greece · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
December in Athens sees average temperatures ranging from a low of 8.7°C (47.7°F) to a high of 15.0°C (59.0°F), with a mean of 11.7°C (53.1°F). Compared to the annual average of 18.2°C (64.8°F), this month is 6.5°C cooler than the yearly norm. Precipitation averages 113.6mm, making it approximately 72.0mm wetter than the monthly average of 42.0mm. This is the wettest month of the year, with 113.6mm of precipitation and around 12.8 rainy days. The city receives an average of 7.2 hours of sunshine per day during December, with relative humidity averaging 78.3%. Wind speeds reach an average maximum of 14.7 km/h. Snowfall averages 0.2cm during December, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Athens, with wetter-than-average conditions compared to the rest of the year.
If you're planning to hike up Lycabettus or walk the Acropolis, go early or go home. I tried the Acropolis at 11am in August — 36°C, UV 10, zero shade, miserable. June at 7am was a different world: 24°C, golden light, mostly empty. The Meltemi wind picks up July-August afternoons, giving some relief but kicking up dust. Spring hiking around Mount Hymettus is best April-May: 20°C, wildflowers, manageable UV. Sea swims are glorious September-October when the water's still 24°C but the air cools to 26°C.
December vs Adjacent Months
| Metric | November | December | January |
|---|---|---|---|
| Mean Temp | 14.7°C (58.5°F) | 11.7°C (53.1°F) | 9.0°C (48.2°F) |
| Rainfall | 53.4mm | 113.6mm | 69.2mm |
| Sunshine | 8.1 hrs | 7.2 hrs | 7.3 hrs |
| Humidity | 71.8% | 78.3% | 74.1% |
| Wind | 15.4 km/h | 14.7 km/h | 16.6 km/h |
| Rainy Days | 9.2 | 12.8 | 11.2 |
| Snowfall | 0.0 cm | 0.2 cm | 1.2 cm |
Seasonal Context
December falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Athens in December, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Athens in December?
The average temperature in Athens during December ranges from 8.7°C (47.7°F) to 15.0°C (59.0°F), with a mean of 11.7°C (53.1°F).
How much does it rain in Athens in December?
Athens receives an average of 113.6mm of precipitation in December, spread across approximately 12.8 rainy days. This is the wettest month of the year.
What should I pack for Athens in December?
Based on December weather data, pack warm layers, a medium jacket, and waterproof outerwear. Rain gear is essential — this month averages 113.6mm of precipitation.
Is December a good time to visit Athens?
December is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Athens
Cities with Similar December Climate (Mediterranean)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 37.98°, 23.73°. Timezone: Europe/Athens. Last updated: 2026-07-30.