Climate averages 1991–2020
Sant Boi de Llobregat weather
in August.
A warm, moderately wet month: the warmest and the joint 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Sant Boi de Llobregat: daytime highs average 26.8°C and nights cool to about 21.3°C. By daytime temperature it is the warmest month of the year.
Expect about 44 mm of rain on roughly 6 days, which makes August a moderately wet month (the joint 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 50 min on an average August day.
The nearest other city in this atlas is Barcelona (11 km away). In August its highs average 27.4°C, 0.6°C warmer than Sant Boi de Llobregat, with 40 mm of rain.
Among the 93 cities listed in Spain, Sant Boi de Llobregat ranks 72nd of 93 for the warmest August highs and joint 77th of 93 for the driest August (rainfall, lowest first). The mean August high of those 93 cities is 29.3°C; Sant Boi de Llobregat is 2.5°C cooler than that mean.
From August to September, average highs fall by 3.1°C to 23.6°C, and monthly rainfall rises from 44 mm to 86 mm.
The annual picture
August 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, selected | 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 | 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
August in nearby cities
- Barcelona in AugustSpain · 11 kmHigh 27.4°C · Low 20.7°C · 40 mm rain
- Rubí in AugustSpain · 17 kmHigh 27.9°C · Low 19.6°C · 50 mm rain
- Badalona in AugustSpain · 21 kmHigh 28.0°C · Low 20.6°C · 40 mm rain
- Sabadell in AugustSpain · 23 kmHigh 27.3°C · Low 19.4°C · 50 mm rain
- Terrassa in AugustSpain · 25 kmHigh 27.7°C · Low 18.7°C · 50 mm rain
- Mataró in AugustSpain · 41 kmHigh 27.1°C · Low 21.0°C · 43 mm rain
- Manresa in AugustSpain · 46 kmHigh 29.4°C · Low 18.3°C · 73 mm rain
- Tarragona in AugustSpain · 71 kmHigh 28.8°C · Low 20.4°C · 40 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.