| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.9° | -1.1° | 49.2mm | 12.1 | 20 |
| February | 6.5° | -0.6° | 46mm | 10.9 | 31 |
| March | 11.2° | 1.8° | 50.8mm | 12.1 | 47 |
| April | 16° | 5.1° | 56.7mm | 11.4 | 64 |
| May | 20.2° | 9.5° | 96.6mm | 13.8 | 72 |
| June | 24.3° | 13.3° | 100.3mm | 13.7 | 73 |
| July | 25.8° | 14.8° | 96.2mm | 13.9 | 72 |
| August | 25.3° | 14.7° | 104.4mm | 13.6 | 73 |
| September | 20.6° | 11.1° | 69.7mm | 11.4 | 77 |
| October | 15.1° | 7.6° | 61.7mm | 12.1 | 60 |
| November | 8.3° | 2.9° | 55.6mm | 11.8 | 39 |
| December | 4.6° | -0.1° | 62mm | 14.1 | 19 |
January in Konstanz averages a daily high of 3.9°C with nights around -1.1°C. Expect roughly 12.1 wet days totalling 49.2mm. A hard month to visit for comfort alone.
February in Konstanz averages a daily high of 6.5°C with nights around -0.6°C. Expect roughly 10.9 wet days totalling 46mm. A hard month to visit for comfort alone.
March in Konstanz averages a daily high of 11.2°C with nights around 1.8°C. Expect roughly 12.1 wet days totalling 50.8mm. Demanding conditions — pack for it and plan indoor options.
April in Konstanz averages a daily high of 16°C with nights around 5.1°C. Expect roughly 11.4 wet days totalling 56.7mm. Generally workable, with some weather to plan around.
May in Konstanz averages a daily high of 20.2°C with nights around 9.5°C. Expect roughly 13.8 wet days totalling 96.6mm. Generally workable, with some weather to plan around.
June in Konstanz averages a daily high of 24.3°C with nights around 13.3°C. Expect roughly 13.7 wet days totalling 100.3mm. Generally workable, with some weather to plan around.
July in Konstanz averages a daily high of 25.8°C with nights around 14.8°C. Expect roughly 13.9 wet days totalling 96.2mm. Generally workable, with some weather to plan around.
August in Konstanz averages a daily high of 25.3°C with nights around 14.7°C. Expect roughly 13.6 wet days totalling 104.4mm. Generally workable, with some weather to plan around.
September in Konstanz averages a daily high of 20.6°C with nights around 11.1°C. Expect roughly 11.4 wet days totalling 69.7mm. Comfortable conditions for being outdoors all day.
October in Konstanz averages a daily high of 15.1°C with nights around 7.6°C. Expect roughly 12.1 wet days totalling 61.7mm. Generally workable, with some weather to plan around.
November in Konstanz averages a daily high of 8.3°C with nights around 2.9°C. Expect roughly 11.8 wet days totalling 55.6mm. Demanding conditions — pack for it and plan indoor options.
December in Konstanz averages a daily high of 4.6°C with nights around -0.1°C. Expect roughly 14.1 wet days totalling 62mm. 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. Konstanz peaks at 77.
Based on 30 years of records, May–September scores highest for comfort in Konstanz, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 25.8°C.
August is the wettest, averaging 104.4mm of rain across roughly 13.6 wet days.
January is the coolest month, with average daily highs around 3.9°C.