Spain
Barcelona in December: weather, sea & travel advice
This month's data profile
Clear transition month
Barcelona in December is climatically mixed. The average daily high is around 13 °C, and the sea is about 15 °C. With about 5 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
48/100 · #11
Warmth
#11
Dryness
#4
Sun
#12
Sea warmth
#8
Published best categories: none
Barcelona · DecemberPhoto: JJxFile · CC BY-SA 4.0Climate facts
- Average high
- 13 °C
- Average low
- 5 °C
- Sea
- 15 °C
- Rainy days (est.)
- 5 rainy days (est.)
- Sun (est.)
- 2 h/day
- Humidity
- 77 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| November | 17 | 8 | 7 | 50 | 2.8 | 75 | 2.4 | 17 | 58 |
| December (selected) | 13 | 5 | 5 | 37 | 2.2 | 77 | 2.4 | 15 | 48 |
| January | 13 | 4 | 5 | 35 | 2.5 | 76 | 2.4 | 14 | 46 |
How do the previous and next months compare?
Baseline: December (48/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| November | +10 | +3.3 °C | +2.9 °C | +1.1 | +13.1 mm | +0.6 h | -2.3 % | ±0 m/s | +2.5 °C |
| January | -2 | -0.6 °C | -1.2 °C | ±0 | -2.2 mm | +0.3 h | -1.5 % | ±0 m/s | -1.4 °C |
All twelve months in context
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Frequently asked questions
How warm is Barcelona in December?
The average daily high is around 13 °C, with an average daily low of about 5 °C.
Can you swim in Barcelona in December?
The sea is about 15 °C (cold).
Does it rain a lot in Barcelona in December?
The curated estimate is about 5 rainy days per month, not a directly measured long-term average. Total precipitation averages around 37 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Barcelona?
By the climate score, June, July, August and September are the strongest months for Barcelona. For a beach trip: June, July, August and September. December is not among them.