| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.7° | -0.4° | 58.8mm | 16.1 | 17 |
| February | 6.2° | 0° | 49mm | 13.4 | 26 |
| March | 9.4° | 1.1° | 45.6mm | 13 | 39 |
| April | 14.4° | 3.9° | 39.7mm | 11 | 60 |
| May | 18.5° | 7.5° | 51.5mm | 12 | 71 |
| June | 21.7° | 10.7° | 64.1mm | 12.3 | 75 |
| July | 23.6° | 12.8° | 73.3mm | 14.1 | 72 |
| August | 23.6° | 12.7° | 68mm | 13.1 | 74 |
| September | 19.7° | 9.8° | 56.1mm | 11.7 | 76 |
| October | 14.5° | 6.5° | 57.6mm | 14.3 | 54 |
| November | 8.8° | 3° | 51mm | 14.4 | 35 |
| December | 5.4° | 0.5° | 59.8mm | 16.1 | 21 |
January in Bremen averages a daily high of 4.7°C with nights around -0.4°C. Expect roughly 16.1 wet days totalling 58.8mm. A hard month to visit for comfort alone.
February in Bremen averages a daily high of 6.2°C with nights around 0°C. Expect roughly 13.4 wet days totalling 49mm. A hard month to visit for comfort alone.
March in Bremen averages a daily high of 9.4°C with nights around 1.1°C. Expect roughly 13 wet days totalling 45.6mm. Demanding conditions — pack for it and plan indoor options.
April in Bremen averages a daily high of 14.4°C with nights around 3.9°C. Expect roughly 11 wet days totalling 39.7mm. Generally workable, with some weather to plan around.
May in Bremen averages a daily high of 18.5°C with nights around 7.5°C. Expect roughly 12 wet days totalling 51.5mm. Generally workable, with some weather to plan around.
June in Bremen averages a daily high of 21.7°C with nights around 10.7°C. Expect roughly 12.3 wet days totalling 64.1mm. Comfortable conditions for being outdoors all day.
July in Bremen averages a daily high of 23.6°C with nights around 12.8°C. Expect roughly 14.1 wet days totalling 73.3mm. Generally workable, with some weather to plan around.
August in Bremen averages a daily high of 23.6°C with nights around 12.7°C. Expect roughly 13.1 wet days totalling 68mm. Generally workable, with some weather to plan around.
September in Bremen averages a daily high of 19.7°C with nights around 9.8°C. Expect roughly 11.7 wet days totalling 56.1mm. Comfortable conditions for being outdoors all day.
October in Bremen averages a daily high of 14.5°C with nights around 6.5°C. Expect roughly 14.3 wet days totalling 57.6mm. Demanding conditions — pack for it and plan indoor options.
November in Bremen averages a daily high of 8.8°C with nights around 3°C. Expect roughly 14.4 wet days totalling 51mm. Demanding conditions — pack for it and plan indoor options.
December in Bremen averages a daily high of 5.4°C with nights around 0.5°C. Expect roughly 16.1 wet days totalling 59.8mm. 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. Bremen peaks at 76.
Based on 30 years of records, May–September scores highest for comfort in Bremen, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 23.6°C.
July is the wettest, averaging 73.3mm of rain across roughly 14.1 wet days.
January is the coolest month, with average daily highs around 4.7°C.