| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.6° | -3.5° | 57.4mm | 14.1 | 11 |
| February | 6.6° | -2.5° | 49.3mm | 12.9 | 25 |
| March | 10.8° | 0° | 64.2mm | 13.9 | 40 |
| April | 15.6° | 3.4° | 66.1mm | 12.3 | 61 |
| May | 19.8° | 8.1° | 126.6mm | 16 | 69 |
| June | 23.6° | 12° | 143.3mm | 15.6 | 70 |
| July | 25° | 13.4° | 138.9mm | 15.7 | 70 |
| August | 24.5° | 13° | 148.3mm | 15 | 70 |
| September | 19.9° | 9.1° | 95.4mm | 12.9 | 74 |
| October | 15.4° | 5.3° | 72.8mm | 12.2 | 61 |
| November | 8.4° | 0.8° | 65.2mm | 12.9 | 35 |
| December | 4.4° | -2.3° | 63.4mm | 14.5 | 15 |
January in Rosenheim averages a daily high of 3.6°C with nights around -3.5°C. Expect roughly 14.1 wet days totalling 57.4mm. A hard month to visit for comfort alone.
February in Rosenheim averages a daily high of 6.6°C with nights around -2.5°C. Expect roughly 12.9 wet days totalling 49.3mm. A hard month to visit for comfort alone.
March in Rosenheim averages a daily high of 10.8°C with nights around 0°C. Expect roughly 13.9 wet days totalling 64.2mm. Demanding conditions — pack for it and plan indoor options.
April in Rosenheim averages a daily high of 15.6°C with nights around 3.4°C. Expect roughly 12.3 wet days totalling 66.1mm. Generally workable, with some weather to plan around.
May in Rosenheim averages a daily high of 19.8°C with nights around 8.1°C. Expect roughly 16 wet days totalling 126.6mm. Generally workable, with some weather to plan around.
June in Rosenheim averages a daily high of 23.6°C with nights around 12°C. Expect roughly 15.6 wet days totalling 143.3mm. Generally workable, with some weather to plan around.
July in Rosenheim averages a daily high of 25°C with nights around 13.4°C. Expect roughly 15.7 wet days totalling 138.9mm. Generally workable, with some weather to plan around.
August in Rosenheim averages a daily high of 24.5°C with nights around 13°C. Expect roughly 15 wet days totalling 148.3mm. Generally workable, with some weather to plan around.
September in Rosenheim averages a daily high of 19.9°C with nights around 9.1°C. Expect roughly 12.9 wet days totalling 95.4mm. Generally workable, with some weather to plan around.
October in Rosenheim averages a daily high of 15.4°C with nights around 5.3°C. Expect roughly 12.2 wet days totalling 72.8mm. Generally workable, with some weather to plan around.
November in Rosenheim averages a daily high of 8.4°C with nights around 0.8°C. Expect roughly 12.9 wet days totalling 65.2mm. Demanding conditions — pack for it and plan indoor options.
December in Rosenheim averages a daily high of 4.4°C with nights around -2.3°C. Expect roughly 14.5 wet days totalling 63.4mm. 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. Rosenheim peaks at 74.
Based on 30 years of records, May–September scores highest for comfort in Rosenheim, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 25°C.
August is the wettest, averaging 148.3mm of rain across roughly 15 wet days.
January is the coolest month, with average daily highs around 3.6°C.