| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 6.3° | 1.6° | 66.8mm | 15.8 | 26 |
| February | 8° | 2.3° | 59.6mm | 14.5 | 33 |
| March | 11.7° | 3.9° | 54.5mm | 13.8 | 46 |
| April | 16.1° | 6.7° | 49.1mm | 11.1 | 65 |
| May | 20° | 10.4° | 65.4mm | 13 | 74 |
| June | 23.4° | 13.7° | 75.2mm | 12.4 | 75 |
| July | 25° | 15.5° | 84.4mm | 14.3 | 71 |
| August | 24.8° | 15.4° | 80.7mm | 13.4 | 73 |
| September | 20.9° | 12.2° | 63.5mm | 11.9 | 76 |
| October | 15.9° | 9° | 64.2mm | 13.9 | 59 |
| November | 10.4° | 5.2° | 69.5mm | 15.5 | 39 |
| December | 7° | 2.6° | 70.8mm | 16.9 | 28 |
January in Leverkusen averages a daily high of 6.3°C with nights around 1.6°C. Expect roughly 15.8 wet days totalling 66.8mm. A hard month to visit for comfort alone.
February in Leverkusen averages a daily high of 8°C with nights around 2.3°C. Expect roughly 14.5 wet days totalling 59.6mm. A hard month to visit for comfort alone.
March in Leverkusen averages a daily high of 11.7°C with nights around 3.9°C. Expect roughly 13.8 wet days totalling 54.5mm. Demanding conditions — pack for it and plan indoor options.
April in Leverkusen averages a daily high of 16.1°C with nights around 6.7°C. Expect roughly 11.1 wet days totalling 49.1mm. Generally workable, with some weather to plan around.
May in Leverkusen averages a daily high of 20°C with nights around 10.4°C. Expect roughly 13 wet days totalling 65.4mm. Generally workable, with some weather to plan around.
June in Leverkusen averages a daily high of 23.4°C with nights around 13.7°C. Expect roughly 12.4 wet days totalling 75.2mm. Comfortable conditions for being outdoors all day.
July in Leverkusen averages a daily high of 25°C with nights around 15.5°C. Expect roughly 14.3 wet days totalling 84.4mm. Generally workable, with some weather to plan around.
August in Leverkusen averages a daily high of 24.8°C with nights around 15.4°C. Expect roughly 13.4 wet days totalling 80.7mm. Generally workable, with some weather to plan around.
September in Leverkusen averages a daily high of 20.9°C with nights around 12.2°C. Expect roughly 11.9 wet days totalling 63.5mm. Comfortable conditions for being outdoors all day.
October in Leverkusen averages a daily high of 15.9°C with nights around 9°C. Expect roughly 13.9 wet days totalling 64.2mm. Generally workable, with some weather to plan around.
November in Leverkusen averages a daily high of 10.4°C with nights around 5.2°C. Expect roughly 15.5 wet days totalling 69.5mm. Demanding conditions — pack for it and plan indoor options.
December in Leverkusen averages a daily high of 7°C with nights around 2.6°C. Expect roughly 16.9 wet days totalling 70.8mm. 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. Leverkusen peaks at 76.
Based on 30 years of records, May–September scores highest for comfort in Leverkusen, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 25°C.
July is the wettest, averaging 84.4mm of rain across roughly 14.3 wet days.
January is the coolest month, with average daily highs around 6.3°C.