Verdict: Excellent month
Barcelona Weather in December
December is mild-to-cool in Barcelona, topping out near 15°C (59°F) — comfortable with a layer on. Rain is occasional — about 4 wet days in a typical year. Overall, December is one of the best months of the year to be in Barcelona.
Average high
15°C / 59°F
Average low
6°C / 43°F
Rain days
~4
Precipitation
20 mm
What to pack for Barcelona in December
- Layers — t-shirts under a light jacket or sweater
- Comfortable walking shoes — every guide on this site assumes you'll use them
December against the rest of the year
Warmest in Barcelona: Jul (29°C / 84°F) · Coolest: Jan (14°C / 57°F) · Wettest: Sep (~10 rain days)
14°
5°
Jan
16°
7°
Feb
16°
8°
Mar
18°
10°
Apr
22°
14°
May
26°
19°
Jun
29°
21°
Jul
29°
22°
Aug
26°
18°
Sep
22°
15°
Oct
18°
10°
Nov
15°
6°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)