Climate averages 1991–2020
Barcelona weather
in December.
A cool, moderately wet month: the 11th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Barcelona: daytime highs average 13.0°C and nights cool to about 6.2°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 41 mm of rain on roughly 6 days, which makes December a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 15 min on an average December day.
The nearest other city in this atlas is Badalona (10 km away). In December its highs average 13.2°C, about as warm as Barcelona, with 41 mm of rain.
Among the 93 cities listed in Spain, Barcelona ranks joint 45th of 93 for the warmest December highs and joint 30th of 93 for the driest December (rainfall, lowest first). The mean December high of those 93 cities is 13.1°C; Barcelona is 0.2°C cooler than that mean.
From December to January, average highs fall by 0.6°C to 12.4°C, and monthly rainfall falls from 41 mm to 40 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Barcelona climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.4°C5.1°C | 5.1°C | 40 | 6.1 | 9.610 h |
| February | 13.1°C5.4°C | 5.4°C | 36 | 6.3 | 10.611 h |
| March | 15.3°C7.4°C | 7.4°C | 40 | 6.7 | 11.912 h |
| April | 17.3°C9.5°C | 9.5°C | 52 | 8.2 | 13.313 h |
| May | 20.6°C13.1°C | 13.1°C | 45 | 7.4 | 14.514 h |
| June | 24.5°C17.1°C | 17.1°C | 34 | 5.6 | 15.115 h |
| July | 27.2°C20.1°C | 20.1°C | 25 | 4.7 | 14.815 h |
| August | 27.4°C20.7°C | 20.7°C | 40 | 6.6 | 13.814 h |
| September | 23.9°C17.8°C | 17.8°C | 77 | 10.5 | 12.513 h |
| October | 20.3°C14.4°C | 14.4°C | 90 | 9.9 | 11.111 h |
| November | 15.9°C9.4°C | 9.4°C | 60 | 8.0 | 9.910 h |
| December, selected | 13.0°C6.2°C | 6.2°C | 41 | 5.7 | 9.29 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Badalona in DecemberSpain · 10 kmHigh 13.2°C · Low 5.7°C · 41 mm rain
- Sant Boi de Llobregat in DecemberSpain · 11 kmHigh 13.1°C · Low 7.6°C · 44 mm rain
- Rubí in DecemberSpain · 16 kmHigh 12.6°C · Low 4.4°C · 39 mm rain
- Sabadell in DecemberSpain · 18 kmHigh 12.2°C · Low 4.3°C · 39 mm rain
- Terrassa in DecemberSpain · 23 kmHigh 11.5°C · Low 3.0°C · 39 mm rain
- Mataró in DecemberSpain · 29 kmHigh 13.0°C · Low 7.2°C · 53 mm rain
- Manresa in DecemberSpain · 47 kmHigh 11.6°C · Low 1.8°C · 36 mm rain
- Tarragona in DecemberSpain · 82 kmHigh 12.8°C · Low 6.0°C · 42 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Barcelona) is explained once on the Barcelona year overview and on the Sources, method and limits page.
Badalona lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.