| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 5.6° | 0.6° | 62.2mm | 16.8 | 22 |
| February | 6.9° | 0.7° | 55.1mm | 13.8 | 29 |
| March | 10.6° | 1.9° | 52.1mm | 13.5 | 43 |
| April | 15.4° | 4.2° | 36.2mm | 10.4 | 64 |
| May | 19.2° | 7.9° | 52.3mm | 12.3 | 73 |
| June | 22.7° | 11.2° | 59.6mm | 11.7 | 77 |
| July | 24.7° | 12.6° | 82.6mm | 14.1 | 72 |
| August | 24° | 12.4° | 76.1mm | 14.7 | 71 |
| September | 20.5° | 9.7° | 53.6mm | 11.2 | 78 |
| October | 15.6° | 7.4° | 57.5mm | 13.4 | 59 |
| November | 9.8° | 3.8° | 60.8mm | 15.1 | 37 |
| December | 6.5° | 1.7° | 67.2mm | 17 | 26 |
January in Lünen averages a daily high of 5.6°C with nights around 0.6°C. Expect roughly 16.8 wet days totalling 62.2mm. A hard month to visit for comfort alone.
February in Lünen averages a daily high of 6.9°C with nights around 0.7°C. Expect roughly 13.8 wet days totalling 55.1mm. A hard month to visit for comfort alone.
March in Lünen averages a daily high of 10.6°C with nights around 1.9°C. Expect roughly 13.5 wet days totalling 52.1mm. Demanding conditions — pack for it and plan indoor options.
April in Lünen averages a daily high of 15.4°C with nights around 4.2°C. Expect roughly 10.4 wet days totalling 36.2mm. Generally workable, with some weather to plan around.
May in Lünen averages a daily high of 19.2°C with nights around 7.9°C. Expect roughly 12.3 wet days totalling 52.3mm. Generally workable, with some weather to plan around.
June in Lünen averages a daily high of 22.7°C with nights around 11.2°C. Expect roughly 11.7 wet days totalling 59.6mm. Comfortable conditions for being outdoors all day.
July in Lünen averages a daily high of 24.7°C with nights around 12.6°C. Expect roughly 14.1 wet days totalling 82.6mm. Generally workable, with some weather to plan around.
August in Lünen averages a daily high of 24°C with nights around 12.4°C. Expect roughly 14.7 wet days totalling 76.1mm. Generally workable, with some weather to plan around.
September in Lünen averages a daily high of 20.5°C with nights around 9.7°C. Expect roughly 11.2 wet days totalling 53.6mm. Comfortable conditions for being outdoors all day.
October in Lünen averages a daily high of 15.6°C with nights around 7.4°C. Expect roughly 13.4 wet days totalling 57.5mm. Generally workable, with some weather to plan around.
November in Lünen averages a daily high of 9.8°C with nights around 3.8°C. Expect roughly 15.1 wet days totalling 60.8mm. Demanding conditions — pack for it and plan indoor options.
December in Lünen averages a daily high of 6.5°C with nights around 1.7°C. Expect roughly 17 wet days totalling 67.2mm. 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. Lünen peaks at 78.
Based on 30 years of records, May–September scores highest for comfort in Lünen, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 24.7°C.
July is the wettest, averaging 82.6mm of rain across roughly 14.1 wet days.
January is the coolest month, with average daily highs around 5.6°C.