Climate averages 1991–2020
Sant Boi de Llobregat weather
in December.
A cool, moderately wet month: the 10th warmest and the joint 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Sant Boi de Llobregat: daytime highs average 13.1°C and nights cool to about 7.6°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 44 mm of rain on roughly 6 days, which makes December a moderately wet month (the joint 6th 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 Barcelona (11 km away). In December its highs average 13.0°C, about as warm as Sant Boi de Llobregat, with 41 mm of rain.
Among the 93 cities listed in Spain, Sant Boi de Llobregat ranks joint 41st of 93 for the warmest December highs and joint 39th of 93 for the driest December (rainfall, lowest first). The mean December high of those 93 cities is 13.1°C; Sant Boi de Llobregat is level with that mean.
From December to January, average highs fall by 0.7°C to 12.4°C, and monthly rainfall stays at 44 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
Sant Boi de Llobregat climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.4°C6.5°C | 6.5°C | 44 | 6.6 | 9.610 h |
| February | 12.8°C6.6°C | 6.6°C | 36 | 5.8 | 10.611 h |
| March | 14.8°C8.3°C | 8.3°C | 39 | 6.0 | 11.912 h |
| April | 16.6°C10.3°C | 10.3°C | 48 | 7.6 | 13.313 h |
| May | 19.7°C13.7°C | 13.7°C | 43 | 6.6 | 14.514 h |
| June | 23.6°C17.6°C | 17.6°C | 29 | 4.7 | 15.115 h |
| July | 26.4°C20.7°C | 20.7°C | 22 | 4.6 | 14.815 h |
| August | 26.8°C21.3°C | 21.3°C | 44 | 6.3 | 13.814 h |
| September | 23.6°C18.6°C | 18.6°C | 86 | 9.9 | 12.513 h |
| October | 20.2°C15.3°C | 15.3°C | 94 | 10.1 | 11.111 h |
| November | 15.9°C10.5°C | 10.5°C | 64 | 7.8 | 9.910 h |
| December, selected | 13.1°C7.6°C | 7.6°C | 44 | 6.4 | 9.39 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
- Barcelona in DecemberSpain · 11 kmHigh 13.0°C · Low 6.2°C · 41 mm rain
- Rubí in DecemberSpain · 17 kmHigh 12.6°C · Low 4.4°C · 39 mm rain
- Badalona in DecemberSpain · 21 kmHigh 13.2°C · Low 5.7°C · 41 mm rain
- Sabadell in DecemberSpain · 23 kmHigh 12.2°C · Low 4.3°C · 39 mm rain
- Terrassa in DecemberSpain · 25 kmHigh 11.5°C · Low 3.0°C · 39 mm rain
- Mataró in DecemberSpain · 41 kmHigh 13.0°C · Low 7.2°C · 53 mm rain
- Manresa in DecemberSpain · 46 kmHigh 11.6°C · Low 1.8°C · 36 mm rain
- Tarragona in DecemberSpain · 71 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 Sant Boi de Llobregat) is explained once on the Sant Boi de Llobregat year overview and on the Sources, method and limits page.