Weather in Valencia in December

Prime time. If you get to pick your dates, December is the one. Highs average 16.9 °C, lows 7.4 °C, and rain falls on 5 days — nothing in the month is working against you.

December ranks 7 of 12 in Valencia: past the worst of the year but short of March, which is the month to book if the dates are open.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 16.9 °C days and 7.4 °C nights; the spread matters more here than any single number.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest December day reached 24.8 °C and the coldest night fell to -1.1 °C, and the wettest single day dropped 34 mm — roughly 103% of the month's rain in one day.

This is the volatile part. December rainfall has ranged from 4 mm to 123 mm across the twenty years measured — a 119 mm spread around an average of 33 mm. The average is real but almost no individual December looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 9.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 74%.

How December sits in the year

Temperatures hold steady either side: 20 °C in November, 16.9 here, 16.6 in January. Nothing about the timing within the month matters much.

Daylight in December

December sits at the dark end of Valencia's year — 9.4 hours of daylight against 14.9 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

Sea temperature

The sea sits at about 15.9 °C in December — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 26.4 °C in August and bottoms out at 13.6 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

December in Valencia versus nearby

If Valencia is one option among several, the nearby comparison is worth making. Murcia is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Cartagena is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: December works, with March the better month by 8 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Valencia

See all twelve months in Valencia, or where else to go in December.