| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 1° | -2.9° | 22.8mm | 8 | 22 |
| February | 1.6° | -2.8° | 46.9mm | 14 | 10 |
| March | 5° | -1° | 18.2mm | 7 | 34 |
| April | 10.7° | 2.5° | 40.1mm | 10.5 | 49 |
| May | 16.8° | 7.4° | 37.7mm | 9.5 | 71 |
| June | 21.3° | 12° | 92.9mm | 13 | 74 |
| July | 23.7° | 14.9° | 37.7mm | 11 | 78 |
| August | 22.4° | 14.3° | 25.5mm | 9 | 82 |
| September | 17.2° | 10.5° | 90.1mm | 12.5 | 66 |
| October | 10.5° | 5.8° | 46.1mm | 11.3 | 47 |
| November | 5.7° | 2.1° | 44.2mm | 13 | 28 |
| December | 2.4° | -1.3° | 43.4mm | 14.5 | 11 |
January in Kungsholmen averages a daily high of 1°C with nights around -2.9°C. Expect roughly 8 wet days totalling 22.8mm. A hard month to visit for comfort alone.
February in Kungsholmen averages a daily high of 1.6°C with nights around -2.8°C. Expect roughly 14 wet days totalling 46.9mm. A hard month to visit for comfort alone.
March in Kungsholmen averages a daily high of 5°C with nights around -1°C. Expect roughly 7 wet days totalling 18.2mm. A hard month to visit for comfort alone.
April in Kungsholmen averages a daily high of 10.7°C with nights around 2.5°C. Expect roughly 10.5 wet days totalling 40.1mm. Demanding conditions — pack for it and plan indoor options.
May in Kungsholmen averages a daily high of 16.8°C with nights around 7.4°C. Expect roughly 9.5 wet days totalling 37.7mm. Generally workable, with some weather to plan around.
June in Kungsholmen averages a daily high of 21.3°C with nights around 12°C. Expect roughly 13 wet days totalling 92.9mm. Generally workable, with some weather to plan around.
July in Kungsholmen averages a daily high of 23.7°C with nights around 14.9°C. Expect roughly 11 wet days totalling 37.7mm. Comfortable conditions for being outdoors all day.
August in Kungsholmen averages a daily high of 22.4°C with nights around 14.3°C. Expect roughly 9 wet days totalling 25.5mm. Comfortable conditions for being outdoors all day.
September in Kungsholmen averages a daily high of 17.2°C with nights around 10.5°C. Expect roughly 12.5 wet days totalling 90.1mm. Generally workable, with some weather to plan around.
October in Kungsholmen averages a daily high of 10.5°C with nights around 5.8°C. Expect roughly 11.3 wet days totalling 46.1mm. Demanding conditions — pack for it and plan indoor options.
November in Kungsholmen averages a daily high of 5.7°C with nights around 2.1°C. Expect roughly 13 wet days totalling 44.2mm. A hard month to visit for comfort alone.
December in Kungsholmen averages a daily high of 2.4°C with nights around -1.3°C. Expect roughly 14.5 wet days totalling 43.4mm. 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. Kungsholmen peaks at 82.
Based on 30 years of records, June–August scores highest for comfort in Kungsholmen, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 23.7°C.
June is the wettest, averaging 92.9mm of rain across roughly 13 wet days.
January is the coolest month, with average daily highs around 1°C.