Castellón de la Plana 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
Good
Best time to visit: March – November
What is the weather like in Castellón de la Plana in December?
In December, Castellón de la Plana is cool: daytime highs average 15 °C, and nights cool down to about 7 °C. The sea averages 15.9 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is rare: about 5 days bring 32 mm in total. All in all, December is a good month for a holiday in Castellón de la Plana.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 88 | 73 | 71 |
| Day | 18° | 15° | 14° |
| Night | 11° | 7° | 7° |
| Sea | 19° | 16° | 14° |
| Sun | 7 h | 6 h | 6 h |
| Rain days | 5 | 5 | 5 |
More details for December
- Daylight
- 9 h 21 min08:15 – 17:36
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+1Europe/Madrid
How the score comes together
- Temperatureweight 50 %70 %
- Sunshineweight 20 %48 %
- Few rainy daysweight 30 %95 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- A jumper for the evenings
Castellón de la Plana in December: quick answers
Is Castellón de la Plana hot in December?
No. In December, Castellón de la Plana is cool: daytime highs average 15 °C and nights drop to about 7 °C.
Can you swim in Castellón de la Plana in December?
Only if you don't mind cold water: in December the sea averages just 15.9 °C. Comfortable swimming is possible from June to October.
Does it rain much in Castellón de la Plana in December?
Rain is rare: about 5 days bring 32 mm in total.
Castellón de la Plana month by month
The whole year in Castellón de la PlanaAll destinations: SpainWhere 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