| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.9° | -0.5° | 46.9mm | 12.7 | 23 |
| February | 7.3° | 0.1° | 42mm | 11.8 | 33 |
| March | 11.5° | 2.2° | 40.1mm | 11.8 | 49 |
| April | 16.4° | 5.3° | 36.7mm | 10.4 | 68 |
| May | 20.5° | 9.4° | 63mm | 11.8 | 76 |
| June | 24.5° | 13° | 56.5mm | 10.6 | 79 |
| July | 26.1° | 14.7° | 65mm | 11.9 | 76 |
| August | 25.8° | 14.6° | 63.3mm | 11.3 | 77 |
| September | 21.1° | 10.8° | 51.2mm | 10 | 80 |
| October | 15.4° | 7° | 51.6mm | 12.1 | 61 |
| November | 9.1° | 3.3° | 48.3mm | 12.8 | 40 |
| December | 5.5° | 0.5° | 52.2mm | 14.3 | 23 |
January in Rüsselsheim am Main averages a daily high of 4.9°C with nights around -0.5°C. Expect roughly 12.7 wet days totalling 46.9mm. A hard month to visit for comfort alone.
February in Rüsselsheim am Main averages a daily high of 7.3°C with nights around 0.1°C. Expect roughly 11.8 wet days totalling 42mm. A hard month to visit for comfort alone.
March in Rüsselsheim am Main averages a daily high of 11.5°C with nights around 2.2°C. Expect roughly 11.8 wet days totalling 40.1mm. Demanding conditions — pack for it and plan indoor options.
April in Rüsselsheim am Main averages a daily high of 16.4°C with nights around 5.3°C. Expect roughly 10.4 wet days totalling 36.7mm. Generally workable, with some weather to plan around.
May in Rüsselsheim am Main averages a daily high of 20.5°C with nights around 9.4°C. Expect roughly 11.8 wet days totalling 63mm. Comfortable conditions for being outdoors all day.
June in Rüsselsheim am Main averages a daily high of 24.5°C with nights around 13°C. Expect roughly 10.6 wet days totalling 56.5mm. Comfortable conditions for being outdoors all day.
July in Rüsselsheim am Main averages a daily high of 26.1°C with nights around 14.7°C. Expect roughly 11.9 wet days totalling 65mm. Comfortable conditions for being outdoors all day.
August in Rüsselsheim am Main averages a daily high of 25.8°C with nights around 14.6°C. Expect roughly 11.3 wet days totalling 63.3mm. Comfortable conditions for being outdoors all day.
September in Rüsselsheim am Main averages a daily high of 21.1°C with nights around 10.8°C. Expect roughly 10 wet days totalling 51.2mm. Comfortable conditions for being outdoors all day.
October in Rüsselsheim am Main averages a daily high of 15.4°C with nights around 7°C. Expect roughly 12.1 wet days totalling 51.6mm. Generally workable, with some weather to plan around.
November in Rüsselsheim am Main averages a daily high of 9.1°C with nights around 3.3°C. Expect roughly 12.8 wet days totalling 48.3mm. Demanding conditions — pack for it and plan indoor options.
December in Rüsselsheim am Main averages a daily high of 5.5°C with nights around 0.5°C. Expect roughly 14.3 wet days totalling 52.2mm. 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. Rüsselsheim am Main peaks at 80.
Based on 30 years of records, May–September scores highest for comfort in Rüsselsheim am Main, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 26.1°C.
July is the wettest, averaging 65mm of rain across roughly 11.9 wet days.
January is the coolest month, with average daily highs around 4.9°C.