Mundaka weather in January

January in Mundaka: cool, soaked, with clean air — not the time — 16 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Mundaka🇪🇸 Spain · Green Spain & Northern Portugal · Beach42
  1. 42Jan
  2. 59Feb
  3. 64Mar
  4. 70Apr
  5. 76May
  6. 82Jun
  7. 91Jul
  8. 88Aug
  9. 84Sep
  10. 67Oct
  11. 44Nov
  12. 41Dec

#11 of 12 months in Mundaka · #1265 of 1413 destinations to visit in January · comfort 42/100 (tier F)

Days
12°C
Nights
6°C
Wet days
16
Sun
5.3 h
Humidity
80%
Daylight
9 h
Mundaka, Spain
Photo: Mikel Arrazola · CC BY 3.0 es

Traveller notes on Mundaka in January

Notes from nearby Bilbao (24 km away)

Mundaka doesn't have its own notes for January yet — these are about Bilbao, close enough to share the season.

Forum posters put January at roughly half rain, half sun rather than a washout - Bilbao and the Bay of Biscay coast are simply wetter than Mediterranean Spain, and visitors shouldn't expect continuous rain so much as a real chance of it most days. The recurring advice: bring an umbrella wherever you go regardless of forecast, and keep a museum or two in reserve for the wetter stretches. Temperatures themselves aren't singled out as a complaint - the rain, not the cold, is what regulars warn newcomers about.
Tripadvisor community · January · 5 days ago · about Bilbao · Read more on Tripadvisor ↗

Other months in Mundaka

Mundaka-forum reviews describe October as the real start of the Basque coast's main surf season: the legendary left-hand rivermouth wave begins waking up as autumn swells arrive, water still holds late-summer warmth even as air temperatures cool, and the point stays workable across a wide four-to-eight-foot range with fewer crowds than the peak November-December months. Weather-wise, visitor accounts are candid that this quaint fishing town's charm doesn't always come with good weather - one reviewer flatly says the weather was poor during their stay, rain included, while still calling the visit worthwhile for the views and the town itself. The general pattern regulars describe is a genuinely wet autumn, showers arriving without much warning even between swell-watching sessions. The record: 21C days, 13.8C nights, a notably high 134mm across 14 days, a 20.4C sea, 74 percent humidity and just 7.5 hours of sun - a wet, cloudy month that matches the mixed-weather reviews closely.
MundakaOctoberRegular · October · 4 days ago · Read more on Tripadvisor ↗

Add your own note from Mundaka's card on the map.

Mundaka climate normals — January

Daytime high12°C / 53°F🙂 cool
Nighttime low6°C / 43°F
Sea temperature14°C / 57°F🥶 cold sea
Rainfall173 mm / 6.8 in⛈ soaked
Rainy days16 days
Humidity80%💦 very humid
Dew point5°C / 41°F
Sunshine5.3 h/day
Daylight9.4 h
Wind21 km/h / 13 mph
Snowfall2.4 cm / 0.9 in
Air quality (US AQI)38🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Mundaka in January

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyChristmas holidays in Spain, school holidays in 6 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Mundaka's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherMundaka's weather peaks July–September.

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Best weatherFair weatherToughest weather

What's on in Mundaka in January

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Mundaka left season

    1 Oct – 28 Feb · usuallySurf season

    The rivermouth sandbar needs a big northwest swell and the right tide, which only comes together in autumn and winter. Good spells rarely last more than a couple of days, so surfers watch forecasts and come on short notice. Source ↗

What's on around the world in January →

Nearby, and something's on

Within 300 km of Mundaka — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Mundaka?

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Mundaka in January — FAQ

Is January a good time to visit Mundaka?
January in Mundaka: cool, soaked, with clean air — not the time — 16 rainy days. It ranks #11 of 12 months for Mundaka on SeasonMap's comfort score (42/100).
What is the weather like in Mundaka in January?
In January, Mundaka averages a daily high of 11.6°C and a low of 6.3°C, with about 172.5 mm of rain over roughly 16 rainy days.
What is the air quality in Mundaka in January?
Mundaka has a mean US Air Quality Index of about 38 in January.
Does it snow in Mundaka in January?
Mundaka sees roughly 2.4 cm of snowfall in January.

Within 300 km: Bilbao's Cabalgata de Reyes on 5 Jan, and San Sebastián's Tamborrada on 19–21 Jan.