Weather in Vigo in December

Shoulder season. December is shoulder season in Vigo — cheaper, quieter, and a genuine gamble. Highs sit at 13.6 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

December ranks 11 of 12 — near the bottom of Vigo's year. July is the month that works, and the swing between the two is 47 points, which is a different holiday rather than a slightly better one.

This is wet-season rain: 14 wet days and 5 genuinely heavy ones, which in this climate means concentrated downpours rather than all-day grey. The pattern is usually a clear morning and a loud afternoon, so front-load the day and stop fighting the 3pm hour. Layers, and a genuinely waterproof outer — at 13.6 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 6 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest December day reached 19.1 °C and the coldest night fell to -0.7 °C, and the wettest single day dropped 71 mm — roughly 47% of the month's rain in one day.

December is moderately variable: 27 mm in the driest year against 380 mm in the wettest, around an average of 150 mm. Roughly two Decembers in three land near that average, and the third does something else entirely.

Wind is light at 5.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 87%, which at 13.6 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How December sits in the year

Temperatures hold steady either side: 15.8 °C in November, 13.6 here, 13 in January. Nothing about the timing within the month matters much.

Daylight in December

December sits at the dark end of Vigo's year — 9.1 hours of daylight against 15.2 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 15.2 °C in December — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 18.5 °C in August and bottoms out at 13.7 °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

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

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

December in Vigo versus nearby

If Vigo is one option among several, the nearby comparison is worth making. Braga is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Aveiro is close enough to be a coin toss — within a degree on temperature, 2 days less rain.

So: December is a compromise. July is 41 points better and is what Vigo is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Vigo

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