Climate averages 1991–2020
Sant Boi de Llobregat weather
in May.
A mild, moderately wet month: the 6th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Sant Boi de Llobregat: daytime highs average 19.7°C and nights cool to about 13.7°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 43 mm of rain on roughly 7 days, which makes May a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 29 min on an average May day.
The nearest other city in this atlas is Barcelona (11 km away). In May its highs average 20.6°C, 0.9°C warmer than Sant Boi de Llobregat, with 45 mm of rain.
Among the 93 cities listed in Spain, Sant Boi de Llobregat ranks joint 74th of 93 for the warmest May highs and joint 57th of 93 for the driest May (rainfall, lowest first). The mean May high of those 93 cities is 21.8°C; Sant Boi de Llobregat is 2.1°C cooler than that mean.
From May to June, average highs rise by 3.9°C to 23.6°C, and monthly rainfall falls from 43 mm to 29 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Barcelona in MaySpain · 11 kmHigh 20.6°C · Low 13.1°C · 45 mm rain
- Rubí in MaySpain · 17 kmHigh 21.2°C · Low 12.0°C · 55 mm rain
- Badalona in MaySpain · 21 kmHigh 21.1°C · Low 13.0°C · 45 mm rain
- Sabadell in MaySpain · 23 kmHigh 20.5°C · Low 11.8°C · 55 mm rain
- Terrassa in MaySpain · 25 kmHigh 21.0°C · Low 11.3°C · 55 mm rain
- Mataró in MaySpain · 41 kmHigh 20.2°C · Low 13.6°C · 48 mm rain
- Manresa in MaySpain · 46 kmHigh 22.6°C · Low 11.0°C · 77 mm rain
- Tarragona in MaySpain · 71 kmHigh 22.0°C · Low 12.9°C · 38 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.