Bilbao, Spain skyline

Bilbao Weather in December

What December is usually like in Bilbao, Spain — from 2006–2025 averages.

Expect Bilbao to reach about 13.2°C (55.8°F) by day and 7.7°C (45.9°F) at night in December, with 15 rainy days bringing 111 mm and around 5.7 hours of sunshine each day.

Avg high

13.2°C (55.8°F)

Avg low

7.7°C (45.9°F)

Rainfall

111 mm (4.4 in)

Rainy days

15 days

Sunshine

5.7 h / day

Humidity

79%

December vs the rest of the year

December is warmer than 2 of the other 11 months, and the 5th wettest month in Bilbao.

MonthAvg highvs DecemberRainRainy days
January12.1°C (53.8°F)−1.1°C (−2°F)134 mm16
February13.1°C (55.6°F)−0.1°C (−0.2°F)115 mm14
March14.6°C (58.3°F)+1.4°C (+2.5°F)114 mm16
April16.5°C (61.7°F)+3.3°C (+5.9°F)90 mm14
May18.8°C (65.8°F)+5.6°C (+10.1°F)84 mm15
June21.8°C (71.2°F)+8.6°C (+15.5°F)72 mm12
July23.7°C (74.7°F)+10.5°C (+18.9°F)44 mm10
August24.4°C (75.9°F)+11.2°C (+20.2°F)49 mm10
September22.9°C (73.2°F)+9.7°C (+17.5°F)66 mm11
October20.5°C (68.9°F)+7.3°C (+13.1°F)90 mm13
November15.6°C (60.1°F)+2.4°C (+4.3°F)153 mm16
December13.2°C (55.8°F)—111 mm15

What December feels like in Bilbao

In Bilbao, December brings early winter. Afternoons are cool, pleasant for walking as long as you keep a layer on. There is little difference between day and night: nights are cool, and evenings feel much like the afternoon. The air is damp, which makes cool temperatures feel colder, particularly in wind.

Rain in Bilbao in December

December is persistently wet here: some rain falls on about every other day. A rainy day brings about 7.4 mm (0.3 in) on average — steady rain rather than a passing shower. Across the year Bilbao averages about 6.9 mm per rainy day, so December is typical.

Daylight and sunshine in December

Mid-month, Bilbao gets 9 h of daylight, from sunrise near 8:37 am to sunset near 5:37 pm. Evenings are drawing in — 45 min less daylight than mid-November. About 63% of daylight hours are sunny; in short, there are plenty of bright spells.

How December compares to the rest of the year

Ranked by average high, December comes out as the 3rd coolest month in Bilbao. Compared with November, afternoons are 2.4°C (4.3°F) cooler, with 42 mm less rain. January is cooler again. The next month's average high: 12.1°C (53.8°F).

Who December suits

  • Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
  • Parks & outdoor: less ideal — too cool to sit outside for long.
  • Beach: less ideal — the sea air is too cool.

Tips for visiting Bilbao in December

Rain Protection

Keep a small umbrella in your bag and wear shoes that cope with puddles.

Light Jacket

Bring a sweater or light coat for cool afternoons.

Quick questions

How warm is Bilbao in December?

It feels cool: typical highs are 13.2°C (55.8°F), with lows near 7.7°C (45.9°F).

Does it rain a lot in Bilbao in December?

Yes, fairly — rain falls about every other day and totals about 111 mm, so an umbrella is worth carrying.

What should I wear in Bilbao in December?

Pack rain protection and a light jacket. Evenings feel similar to the day, so the same clothes work from morning to night.

Is December or January better for visiting Bilbao?

December scores better on our climate ranking (#9 of 12 vs #12), rated Good against Fair. January is cooler and has more rainy days.

Is December a good time to visit Bilbao?

Good

Good — mild but cool days, frequent rain (about 15 rainy days). Within Bilbao's own year, December ranks #9 of 12.

December in other Spain cities

Warmer or drier places in December

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Bilbao weather by month.