| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 5.2° | 1.2° | 138.4mm | 19.7 | 21 |
| February | 5° | 0.8° | 125.3mm | 18.3 | 20 |
| March | 6° | 1.2° | 118.5mm | 18.7 | 24 |
| April | 8.9° | 3.1° | 78.3mm | 15.4 | 34 |
| May | 12° | 6.2° | 73.4mm | 15.1 | 44 |
| June | 14.6° | 9.3° | 80.6mm | 15.3 | 53 |
| July | 16.8° | 11.6° | 80.4mm | 15.6 | 60 |
| August | 17.1° | 12.1° | 130.5mm | 18 | 61 |
| September | 15° | 9.9° | 152.9mm | 18.3 | 54 |
| October | 11.2° | 6.5° | 170.1mm | 20.7 | 42 |
| November | 7.9° | 3.6° | 146mm | 17.8 | 31 |
| December | 5.7° | 1.6° | 169.6mm | 20.8 | 24 |
January in Ålesund averages a daily high of 5.2°C with nights around 1.2°C. Expect roughly 19.7 wet days totalling 138.4mm. A hard month to visit for comfort alone.
February in Ålesund averages a daily high of 5°C with nights around 0.8°C. Expect roughly 18.3 wet days totalling 125.3mm. A hard month to visit for comfort alone.
March in Ålesund averages a daily high of 6°C with nights around 1.2°C. Expect roughly 18.7 wet days totalling 118.5mm. A hard month to visit for comfort alone.
April in Ålesund averages a daily high of 8.9°C with nights around 3.1°C. Expect roughly 15.4 wet days totalling 78.3mm. A hard month to visit for comfort alone.
May in Ålesund averages a daily high of 12°C with nights around 6.2°C. Expect roughly 15.1 wet days totalling 73.4mm. Demanding conditions — pack for it and plan indoor options.
June in Ålesund averages a daily high of 14.6°C with nights around 9.3°C. Expect roughly 15.3 wet days totalling 80.6mm. Demanding conditions — pack for it and plan indoor options.
July in Ålesund averages a daily high of 16.8°C with nights around 11.6°C. Expect roughly 15.6 wet days totalling 80.4mm. Generally workable, with some weather to plan around.
August in Ålesund averages a daily high of 17.1°C with nights around 12.1°C. Expect roughly 18 wet days totalling 130.5mm. Generally workable, with some weather to plan around.
September in Ålesund averages a daily high of 15°C with nights around 9.9°C. Expect roughly 18.3 wet days totalling 152.9mm. Demanding conditions — pack for it and plan indoor options.
October in Ålesund averages a daily high of 11.2°C with nights around 6.5°C. Expect roughly 20.7 wet days totalling 170.1mm. Demanding conditions — pack for it and plan indoor options.
November in Ålesund averages a daily high of 7.9°C with nights around 3.6°C. Expect roughly 17.8 wet days totalling 146mm. A hard month to visit for comfort alone.
December in Ålesund averages a daily high of 5.7°C with nights around 1.6°C. Expect roughly 20.8 wet days totalling 169.6mm. 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. Ålesund peaks at 61.
Based on 30 years of records, June–September scores highest for comfort in Ålesund, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 17.1°C.
October is the wettest, averaging 170.1mm of rain across roughly 20.7 wet days.
February is the coolest month, with average daily highs around 5°C.