| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 1.1° | -3.9° | 36.2mm | 12 | 12 |
| February | 2.1° | -3.8° | 30.7mm | 10.9 | 15 |
| March | 5.8° | -2.1° | 28.9mm | 9.9 | 29 |
| April | 11.5° | 1.3° | 30.4mm | 9.1 | 54 |
| May | 16.9° | 5.9° | 45.1mm | 10.5 | 69 |
| June | 21.1° | 10.5° | 59.8mm | 11.7 | 77 |
| July | 23° | 13° | 70.6mm | 12 | 76 |
| August | 22.2° | 12.4° | 64mm | 11.7 | 77 |
| September | 17.4° | 8.9° | 46.1mm | 10 | 72 |
| October | 11.2° | 4.6° | 53.5mm | 13.2 | 45 |
| November | 5.7° | 1.1° | 46.6mm | 13.5 | 26 |
| December | 2.3° | -2.5° | 43.3mm | 14.2 | 10 |
January in Norrköping averages a daily high of 1.1°C with nights around -3.9°C. Expect roughly 12 wet days totalling 36.2mm. A hard month to visit for comfort alone.
February in Norrköping averages a daily high of 2.1°C with nights around -3.8°C. Expect roughly 10.9 wet days totalling 30.7mm. A hard month to visit for comfort alone.
March in Norrköping averages a daily high of 5.8°C with nights around -2.1°C. Expect roughly 9.9 wet days totalling 28.9mm. A hard month to visit for comfort alone.
April in Norrköping averages a daily high of 11.5°C with nights around 1.3°C. Expect roughly 9.1 wet days totalling 30.4mm. Demanding conditions — pack for it and plan indoor options.
May in Norrköping averages a daily high of 16.9°C with nights around 5.9°C. Expect roughly 10.5 wet days totalling 45.1mm. Generally workable, with some weather to plan around.
June in Norrköping averages a daily high of 21.1°C with nights around 10.5°C. Expect roughly 11.7 wet days totalling 59.8mm. Comfortable conditions for being outdoors all day.
July in Norrköping averages a daily high of 23°C with nights around 13°C. Expect roughly 12 wet days totalling 70.6mm. Comfortable conditions for being outdoors all day.
August in Norrköping averages a daily high of 22.2°C with nights around 12.4°C. Expect roughly 11.7 wet days totalling 64mm. Comfortable conditions for being outdoors all day.
September in Norrköping averages a daily high of 17.4°C with nights around 8.9°C. Expect roughly 10 wet days totalling 46.1mm. Generally workable, with some weather to plan around.
October in Norrköping averages a daily high of 11.2°C with nights around 4.6°C. Expect roughly 13.2 wet days totalling 53.5mm. Demanding conditions — pack for it and plan indoor options.
November in Norrköping averages a daily high of 5.7°C with nights around 1.1°C. Expect roughly 13.5 wet days totalling 46.6mm. A hard month to visit for comfort alone.
December in Norrköping averages a daily high of 2.3°C with nights around -2.5°C. Expect roughly 14.2 wet days totalling 43.3mm. 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. Norrköping peaks at 77.
Based on 30 years of records, May–September scores highest for comfort in Norrköping, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 23°C.
July is the wettest, averaging 70.6mm of rain across roughly 12 wet days.
January is the coolest month, with average daily highs around 1.1°C.