| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 5.1° | 0.7° | 87.5mm | 17.2 | 20 |
| February | 6.7° | 1.4° | 77.7mm | 14.9 | 27 |
| March | 10.1° | 3.1° | 66.6mm | 14.4 | 40 |
| April | 14.4° | 5.8° | 55.2mm | 11.7 | 59 |
| May | 18.3° | 9.3° | 73.4mm | 13.7 | 67 |
| June | 21.6° | 12.3° | 81.7mm | 12.6 | 75 |
| July | 23.4° | 14.2° | 91.9mm | 14.2 | 72 |
| August | 23.2° | 14.3° | 92.7mm | 13.8 | 72 |
| September | 19.3° | 11.5° | 73.4mm | 12.3 | 73 |
| October | 14.7° | 8.3° | 79.1mm | 15 | 53 |
| November | 9.2° | 4.4° | 78.7mm | 16.6 | 35 |
| December | 5.8° | 1.7° | 91.2mm | 17.7 | 24 |
January in Duisburg averages a daily high of 5.1°C with nights around 0.7°C. Expect roughly 17.2 wet days totalling 87.5mm. A hard month to visit for comfort alone.
February in Duisburg averages a daily high of 6.7°C with nights around 1.4°C. Expect roughly 14.9 wet days totalling 77.7mm. A hard month to visit for comfort alone.
March in Duisburg averages a daily high of 10.1°C with nights around 3.1°C. Expect roughly 14.4 wet days totalling 66.6mm. Demanding conditions — pack for it and plan indoor options.
April in Duisburg averages a daily high of 14.4°C with nights around 5.8°C. Expect roughly 11.7 wet days totalling 55.2mm. Generally workable, with some weather to plan around.
May in Duisburg averages a daily high of 18.3°C with nights around 9.3°C. Expect roughly 13.7 wet days totalling 73.4mm. Generally workable, with some weather to plan around.
June in Duisburg averages a daily high of 21.6°C with nights around 12.3°C. Expect roughly 12.6 wet days totalling 81.7mm. Comfortable conditions for being outdoors all day.
July in Duisburg averages a daily high of 23.4°C with nights around 14.2°C. Expect roughly 14.2 wet days totalling 91.9mm. Generally workable, with some weather to plan around.
August in Duisburg averages a daily high of 23.2°C with nights around 14.3°C. Expect roughly 13.8 wet days totalling 92.7mm. Generally workable, with some weather to plan around.
September in Duisburg averages a daily high of 19.3°C with nights around 11.5°C. Expect roughly 12.3 wet days totalling 73.4mm. Generally workable, with some weather to plan around.
October in Duisburg averages a daily high of 14.7°C with nights around 8.3°C. Expect roughly 15 wet days totalling 79.1mm. Demanding conditions — pack for it and plan indoor options.
November in Duisburg averages a daily high of 9.2°C with nights around 4.4°C. Expect roughly 16.6 wet days totalling 78.7mm. Demanding conditions — pack for it and plan indoor options.
December in Duisburg averages a daily high of 5.8°C with nights around 1.7°C. Expect roughly 17.7 wet days totalling 91.2mm. 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. Duisburg peaks at 75.
Based on 30 years of records, May–September scores highest for comfort in Duisburg, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 23.4°C.
August is the wettest, averaging 92.7mm of rain across roughly 13.8 wet days.
January is the coolest month, with average daily highs around 5.1°C.