Cool
Average highs are around 15°C, so pack for cooler days.
December verdict
Castellón, Spain in December
Weather score29Poor
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 4.9h per day, so this is not one of the brighter months. Rainfall averages 46mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
15°C
Rain
46mm
Sun
4.9h
Sea
16°C
Weather score
29
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 46mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.9h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 16°C, so the water can feel cool.
Map
Weather map
Compare Castellón, Spain with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December15°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December46mm average rain
December sits near Castellón's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to August and November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4.9 hours average sun
December is one of Castellón's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December16°C average sea
December is below Castellón's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
December29 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
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