Rethymno weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: June – September
What is the weather like in Rethymno in December?
In December, Rethymno is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 4 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 99 mm in total. All in all, December is not an ideal month for a holiday in Rethymno.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 41 | 16 | 12 |
| Day | 20° | 16° | 15° |
| Night | 15° | 12° | 10° |
| Sea | 21° | 19° | 17° |
| Sun | 5 h | 4 h | 5 h |
| Rain days | 9 | 14 | 14 |
More details for December
- Daylight
- 9 h 47 min07:23 – 17:11
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Athens
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %21 %
- Sunshineweight 20 %23 %
- Few rainy daysweight 20 %31 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in December
- A jumper for the evenings
- Rain jacket or umbrella
Rethymno in December: quick answers
Is Rethymno hot in December?
No. In December, Rethymno is mild: daytime highs average 16 °C and nights drop to about 12 °C.
Can you swim in Rethymno in December?
Only if you don't mind cold water: in December the sea averages just 18.5 °C. Comfortable swimming is possible from June to November.
Does it rain much in Rethymno in December?
Rain is frequent, with about 14 rainy days and 99 mm in total.
Rethymno month by month
The whole year in RethymnoAll destinations: GreeceCrete weather in DecemberWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences