Athens weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Fair
Best time to visit: April – May, September – October
What is the weather like in Athens in January?
In January, Athens is cool: daytime highs average 12 °C, and nights cool down to about 6 °C. The sea averages 15.5 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain falls on about 8 days, adding up to 50 mm. All in all, January is a so-so month for a holiday in Athens.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 56 | 51 | 60 |
| Day | 14° | 12° | 13° |
| Night | 8° | 6° | 6° |
| Sea | 18° | 16° | 15° |
| Sun | 5 h | 5 h | 6 h |
| Rain days | 8 | 8 | 7 |
More details for January
- Daylight
- 9 h 48 min07:40 – 17:28
- UV index
- 2 · lowclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 15 km/haverage daily peak
- Cloud cover
- 55 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Athens
How the score comes together
- Temperatureweight 50 %43 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 30 %74 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- A jumper for the evenings
Athens in January: quick answers
Is Athens hot in January?
No. In January, Athens is cool: daytime highs average 12 °C and nights drop to about 6 °C.
Can you swim in Athens in January?
Only if you don't mind cold water: in January the sea averages just 15.5 °C. Comfortable swimming is possible from June to November.
Does it rain much in Athens in January?
Rain falls on about 8 days, adding up to 50 mm.
Athens month by month
The whole year in AthensAll destinations: Greece
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)