| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.8° | -0.7° | 79.1mm | 15.8 | 14 |
| February | 6.1° | 0.1° | 67.1mm | 14 | 25 |
| March | 10.2° | 2.3° | 62.9mm | 13.1 | 42 |
| April | 14.7° | 5.2° | 47.9mm | 10.9 | 61 |
| May | 18.6° | 9° | 71.9mm | 12.7 | 70 |
| June | 22.3° | 12.3° | 60.4mm | 11.5 | 77 |
| July | 24.1° | 14.1° | 68mm | 11.6 | 77 |
| August | 23.9° | 14° | 70.6mm | 12.9 | 74 |
| September | 19.6° | 10.6° | 55.9mm | 9.9 | 79 |
| October | 14.3° | 7.3° | 75.3mm | 13.6 | 55 |
| November | 8° | 3° | 75.8mm | 16 | 32 |
| December | 4.4° | 0.2° | 85.2mm | 16.6 | 17 |
January in Metz averages a daily high of 3.8°C with nights around -0.7°C. Expect roughly 15.8 wet days totalling 79.1mm. A hard month to visit for comfort alone.
February in Metz averages a daily high of 6.1°C with nights around 0.1°C. Expect roughly 14 wet days totalling 67.1mm. A hard month to visit for comfort alone.
March in Metz averages a daily high of 10.2°C with nights around 2.3°C. Expect roughly 13.1 wet days totalling 62.9mm. Demanding conditions — pack for it and plan indoor options.
April in Metz averages a daily high of 14.7°C with nights around 5.2°C. Expect roughly 10.9 wet days totalling 47.9mm. Generally workable, with some weather to plan around.
May in Metz averages a daily high of 18.6°C with nights around 9°C. Expect roughly 12.7 wet days totalling 71.9mm. Generally workable, with some weather to plan around.
June in Metz averages a daily high of 22.3°C with nights around 12.3°C. Expect roughly 11.5 wet days totalling 60.4mm. Comfortable conditions for being outdoors all day.
July in Metz averages a daily high of 24.1°C with nights around 14.1°C. Expect roughly 11.6 wet days totalling 68mm. Comfortable conditions for being outdoors all day.
August in Metz averages a daily high of 23.9°C with nights around 14°C. Expect roughly 12.9 wet days totalling 70.6mm. Generally workable, with some weather to plan around.
September in Metz averages a daily high of 19.6°C with nights around 10.6°C. Expect roughly 9.9 wet days totalling 55.9mm. Comfortable conditions for being outdoors all day.
October in Metz averages a daily high of 14.3°C with nights around 7.3°C. Expect roughly 13.6 wet days totalling 75.3mm. Generally workable, with some weather to plan around.
November in Metz averages a daily high of 8°C with nights around 3°C. Expect roughly 16 wet days totalling 75.8mm. A hard month to visit for comfort alone.
December in Metz averages a daily high of 4.4°C with nights around 0.2°C. Expect roughly 16.6 wet days totalling 85.2mm. 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. Metz peaks at 79.
Based on 30 years of records, June–September scores highest for comfort in Metz, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 24.1°C.
December is the wettest, averaging 85.2mm of rain across roughly 16.6 wet days.
January is the coolest month, with average daily highs around 3.8°C.