| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 7.5° | -0.2° | 48.3mm | 12.1 | 33 |
| February | 9.5° | -0.3° | 37.1mm | 9.2 | 45 |
| March | 13° | 1.4° | 46.4mm | 10.3 | 56 |
| April | 15.4° | 3.2° | 58.4mm | 11.3 | 63 |
| May | 19.5° | 6.1° | 54.4mm | 10.5 | 77 |
| June | 24.7° | 9.8° | 42.4mm | 6.9 | 86 |
| July | 28.2° | 11.8° | 20.1mm | 4.2 | 87 |
| August | 28.2° | 11.9° | 18.6mm | 4.4 | 86 |
| September | 23.5° | 9.2° | 31.7mm | 6.4 | 87 |
| October | 18.3° | 6.4° | 64.5mm | 10.8 | 73 |
| November | 11.1° | 2.7° | 65.5mm | 13 | 46 |
| December | 8.2° | 0.4° | 63.4mm | 12.7 | 34 |
January in Gamonal averages a daily high of 7.5°C with nights around -0.2°C. Expect roughly 12.1 wet days totalling 48.3mm. A hard month to visit for comfort alone.
February in Gamonal averages a daily high of 9.5°C with nights around -0.3°C. Expect roughly 9.2 wet days totalling 37.1mm. Demanding conditions — pack for it and plan indoor options.
March in Gamonal averages a daily high of 13°C with nights around 1.4°C. Expect roughly 10.3 wet days totalling 46.4mm. Generally workable, with some weather to plan around.
April in Gamonal averages a daily high of 15.4°C with nights around 3.2°C. Expect roughly 11.3 wet days totalling 58.4mm. Generally workable, with some weather to plan around.
May in Gamonal averages a daily high of 19.5°C with nights around 6.1°C. Expect roughly 10.5 wet days totalling 54.4mm. Comfortable conditions for being outdoors all day.
June in Gamonal averages a daily high of 24.7°C with nights around 9.8°C. Expect roughly 6.9 wet days totalling 42.4mm. Comfortable conditions for being outdoors all day.
July in Gamonal averages a daily high of 28.2°C with nights around 11.8°C. Expect roughly 4.2 wet days totalling 20.1mm. Comfortable conditions for being outdoors all day.
August in Gamonal averages a daily high of 28.2°C with nights around 11.9°C. Expect roughly 4.4 wet days totalling 18.6mm. Comfortable conditions for being outdoors all day.
September in Gamonal averages a daily high of 23.5°C with nights around 9.2°C. Expect roughly 6.4 wet days totalling 31.7mm. Comfortable conditions for being outdoors all day.
October in Gamonal averages a daily high of 18.3°C with nights around 6.4°C. Expect roughly 10.8 wet days totalling 64.5mm. Generally workable, with some weather to plan around.
November in Gamonal averages a daily high of 11.1°C with nights around 2.7°C. Expect roughly 13 wet days totalling 65.5mm. Demanding conditions — pack for it and plan indoor options.
December in Gamonal averages a daily high of 8.2°C with nights around 0.4°C. Expect roughly 12.7 wet days totalling 63.4mm. A hard month to visit for comfort alone.
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. Gamonal peaks at 87.
Based on 30 years of records, June–September scores highest for comfort in Gamonal, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.2°C.
November is the wettest, averaging 65.5mm of rain across roughly 13 wet days.
January is the coolest month, with average daily highs around 7.5°C.