Athens Weather in January
Greece · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Athens sees average temperatures ranging from a low of 5.6°C (42.1°F) to a high of 12.7°C (54.9°F), with a mean of 9.0°C (48.2°F). Compared to the annual average of 18.2°C (64.8°F), this month is 9.2°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 5.6°C (42.1°F). Precipitation averages 69.2mm, making it approximately 28.0mm wetter than the monthly average of 42.0mm. The city receives an average of 7.3 hours of sunshine per day during January, with relative humidity averaging 74.1%. Wind speeds reach an average maximum of 16.6 km/h. Snowfall averages 1.2cm during January, which can affect travel plans and outdoor activities. For travelers, this month offers a coldest month of the year 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.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 11.7°C (53.1°F) | 9.0°C (48.2°F) | 10.0°C (50.0°F) |
| Rainfall | 113.6mm | 69.2mm | 44.0mm |
| Sunshine | 7.2 hrs | 7.3 hrs | 8.7 hrs |
| Humidity | 78.3% | 74.1% | 73.0% |
| Wind | 14.7 km/h | 16.6 km/h | 15.9 km/h |
| Rainy Days | 12.8 | 11.2 | 9.4 |
| Snowfall | 0.2 cm | 1.2 cm | 4.5 cm |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Athens in January, 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 January?
The average temperature in Athens during January ranges from 5.6°C (42.1°F) to 12.7°C (54.9°F), with a mean of 9.0°C (48.2°F).
How much does it rain in Athens in January?
Athens receives an average of 69.2mm of precipitation in January, spread across approximately 11.2 rainy days.
What should I pack for Athens in January?
Based on January weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is January a good time to visit Athens?
January 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 January 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.