| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.1° | -1.6° | 31.8mm | 13.9 | 13 |
| February | 4.9° | -1.1° | 31.7mm | 11.8 | 23 |
| March | 9° | 1.1° | 38.4mm | 13 | 37 |
| April | 14° | 4.3° | 34mm | 10.5 | 60 |
| May | 18.3° | 8° | 60.7mm | 12.3 | 70 |
| June | 22.5° | 11.8° | 51.9mm | 11.4 | 77 |
| July | 24.5° | 13.6° | 79.2mm | 13.3 | 73 |
| August | 24.3° | 13.7° | 65.8mm | 11.6 | 77 |
| September | 19.5° | 10.3° | 56.9mm | 10.9 | 77 |
| October | 13.9° | 6.7° | 43.1mm | 12.2 | 56 |
| November | 7.9° | 2.6° | 46mm | 13 | 35 |
| December | 4.6° | -0.1° | 38.4mm | 13.9 | 20 |
January in Weimar averages a daily high of 3.1°C with nights around -1.6°C. Expect roughly 13.9 wet days totalling 31.8mm. A hard month to visit for comfort alone.
February in Weimar averages a daily high of 4.9°C with nights around -1.1°C. Expect roughly 11.8 wet days totalling 31.7mm. A hard month to visit for comfort alone.
March in Weimar averages a daily high of 9°C with nights around 1.1°C. Expect roughly 13 wet days totalling 38.4mm. Demanding conditions — pack for it and plan indoor options.
April in Weimar averages a daily high of 14°C with nights around 4.3°C. Expect roughly 10.5 wet days totalling 34mm. Generally workable, with some weather to plan around.
May in Weimar averages a daily high of 18.3°C with nights around 8°C. Expect roughly 12.3 wet days totalling 60.7mm. Generally workable, with some weather to plan around.
June in Weimar averages a daily high of 22.5°C with nights around 11.8°C. Expect roughly 11.4 wet days totalling 51.9mm. Comfortable conditions for being outdoors all day.
July in Weimar averages a daily high of 24.5°C with nights around 13.6°C. Expect roughly 13.3 wet days totalling 79.2mm. Generally workable, with some weather to plan around.
August in Weimar averages a daily high of 24.3°C with nights around 13.7°C. Expect roughly 11.6 wet days totalling 65.8mm. Comfortable conditions for being outdoors all day.
September in Weimar averages a daily high of 19.5°C with nights around 10.3°C. Expect roughly 10.9 wet days totalling 56.9mm. Comfortable conditions for being outdoors all day.
October in Weimar averages a daily high of 13.9°C with nights around 6.7°C. Expect roughly 12.2 wet days totalling 43.1mm. Generally workable, with some weather to plan around.
November in Weimar averages a daily high of 7.9°C with nights around 2.6°C. Expect roughly 13 wet days totalling 46mm. Demanding conditions — pack for it and plan indoor options.
December in Weimar averages a daily high of 4.6°C with nights around -0.1°C. Expect roughly 13.9 wet days totalling 38.4mm. 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. Weimar peaks at 77.
Based on 30 years of records, May–September scores highest for comfort in Weimar, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 24.5°C.
July is the wettest, averaging 79.2mm of rain across roughly 13.3 wet days.
January is the coolest month, with average daily highs around 3.1°C.