| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 14.1° | 5.7° | 36.7mm | 5.4 | 70 |
| February | 14.8° | 6.3° | 27.7mm | 4.3 | 75 |
| March | 16.6° | 8.4° | 37.9mm | 5.6 | 78 |
| April | 18.7° | 10.8° | 47.8mm | 6.7 | 82 |
| May | 21.9° | 14.3° | 40.8mm | 6.1 | 88 |
| June | 25.9° | 18.5° | 23.7mm | 3.8 | 92 |
| July | 28.5° | 21.3° | 24.6mm | 3 | 88 |
| August | 29.1° | 21.6° | 50.3mm | 5.4 | 81 |
| September | 26.3° | 18.4° | 74.3mm | 7.1 | 86 |
| October | 22.8° | 14.9° | 78.7mm | 7.1 | 86 |
| November | 17.9° | 9.5° | 54.1mm | 6.2 | 81 |
| December | 14.9° | 6.5° | 35.6mm | 5.4 | 73 |
January in Sarrià-Sant Gervasi averages a daily high of 14.1°C with nights around 5.7°C. Expect roughly 5.4 wet days totalling 36.7mm. Generally workable, with some weather to plan around.
February in Sarrià-Sant Gervasi averages a daily high of 14.8°C with nights around 6.3°C. Expect roughly 4.3 wet days totalling 27.7mm. Comfortable conditions for being outdoors all day.
March in Sarrià-Sant Gervasi averages a daily high of 16.6°C with nights around 8.4°C. Expect roughly 5.6 wet days totalling 37.9mm. Comfortable conditions for being outdoors all day.
April in Sarrià-Sant Gervasi averages a daily high of 18.7°C with nights around 10.8°C. Expect roughly 6.7 wet days totalling 47.8mm. Comfortable conditions for being outdoors all day.
May in Sarrià-Sant Gervasi averages a daily high of 21.9°C with nights around 14.3°C. Expect roughly 6.1 wet days totalling 40.8mm. Comfortable conditions for being outdoors all day.
June in Sarrià-Sant Gervasi averages a daily high of 25.9°C with nights around 18.5°C. Expect roughly 3.8 wet days totalling 23.7mm. Comfortable conditions for being outdoors all day.
July in Sarrià-Sant Gervasi averages a daily high of 28.5°C with nights around 21.3°C. Expect roughly 3 wet days totalling 24.6mm. Comfortable conditions for being outdoors all day.
August in Sarrià-Sant Gervasi averages a daily high of 29.1°C with nights around 21.6°C. Expect roughly 5.4 wet days totalling 50.3mm. Comfortable conditions for being outdoors all day.
September in Sarrià-Sant Gervasi averages a daily high of 26.3°C with nights around 18.4°C. Expect roughly 7.1 wet days totalling 74.3mm. Comfortable conditions for being outdoors all day.
October in Sarrià-Sant Gervasi averages a daily high of 22.8°C with nights around 14.9°C. Expect roughly 7.1 wet days totalling 78.7mm. Comfortable conditions for being outdoors all day.
November in Sarrià-Sant Gervasi averages a daily high of 17.9°C with nights around 9.5°C. Expect roughly 6.2 wet days totalling 54.1mm. Comfortable conditions for being outdoors all day.
December in Sarrià-Sant Gervasi averages a daily high of 14.9°C with nights around 6.5°C. Expect roughly 5.4 wet days totalling 35.6mm. Generally workable, with some weather to plan around.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Sarrià-Sant Gervasi peaks at 92.
Based on 30 years of records, May–July scores highest for comfort in Sarrià-Sant Gervasi, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 29.1°C.
October is the wettest, averaging 78.7mm of rain across roughly 7.1 wet days.
January is the coolest month, with average daily highs around 14.1°C.