| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.5° | 0° | 67.3mm | 16.8 | 17 |
| February | 6° | 0.5° | 60.9mm | 14.6 | 24 |
| March | 9.3° | 1.6° | 55.2mm | 13.4 | 38 |
| April | 14.4° | 4.7° | 40.6mm | 11.7 | 59 |
| May | 18.7° | 8.5° | 59.5mm | 13.3 | 69 |
| June | 21.8° | 11.8° | 73.9mm | 13 | 74 |
| July | 23.5° | 13.9° | 82mm | 14.7 | 71 |
| August | 23.6° | 13.9° | 74.8mm | 13.9 | 72 |
| September | 19.6° | 10.8° | 58.9mm | 12.6 | 74 |
| October | 14.4° | 7.2° | 63.8mm | 14.6 | 53 |
| November | 8.6° | 3.6° | 58.5mm | 14.9 | 34 |
| December | 5.3° | 0.9° | 69mm | 16.3 | 21 |
January in Harburg averages a daily high of 4.5°C with nights around 0°C. Expect roughly 16.8 wet days totalling 67.3mm. A hard month to visit for comfort alone.
February in Harburg averages a daily high of 6°C with nights around 0.5°C. Expect roughly 14.6 wet days totalling 60.9mm. A hard month to visit for comfort alone.
March in Harburg averages a daily high of 9.3°C with nights around 1.6°C. Expect roughly 13.4 wet days totalling 55.2mm. Demanding conditions — pack for it and plan indoor options.
April in Harburg averages a daily high of 14.4°C with nights around 4.7°C. Expect roughly 11.7 wet days totalling 40.6mm. Generally workable, with some weather to plan around.
May in Harburg averages a daily high of 18.7°C with nights around 8.5°C. Expect roughly 13.3 wet days totalling 59.5mm. Generally workable, with some weather to plan around.
June in Harburg averages a daily high of 21.8°C with nights around 11.8°C. Expect roughly 13 wet days totalling 73.9mm. Generally workable, with some weather to plan around.
July in Harburg averages a daily high of 23.5°C with nights around 13.9°C. Expect roughly 14.7 wet days totalling 82mm. Generally workable, with some weather to plan around.
August in Harburg averages a daily high of 23.6°C with nights around 13.9°C. Expect roughly 13.9 wet days totalling 74.8mm. Generally workable, with some weather to plan around.
September in Harburg averages a daily high of 19.6°C with nights around 10.8°C. Expect roughly 12.6 wet days totalling 58.9mm. Generally workable, with some weather to plan around.
October in Harburg averages a daily high of 14.4°C with nights around 7.2°C. Expect roughly 14.6 wet days totalling 63.8mm. Demanding conditions — pack for it and plan indoor options.
November in Harburg averages a daily high of 8.6°C with nights around 3.6°C. Expect roughly 14.9 wet days totalling 58.5mm. A hard month to visit for comfort alone.
December in Harburg averages a daily high of 5.3°C with nights around 0.9°C. Expect roughly 16.3 wet days totalling 69mm. 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. Harburg peaks at 74.
Based on 30 years of records, May–September scores highest for comfort in Harburg, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 23.6°C.
July is the wettest, averaging 82mm of rain across roughly 14.7 wet days.
January is the coolest month, with average daily highs around 4.5°C.