| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.9° | 0.4° | 65.4mm | 16.6 | 19 |
| February | 6.6° | 1° | 61.7mm | 14.8 | 26 |
| March | 9.4° | 1.8° | 53.6mm | 13.4 | 39 |
| April | 14° | 4.1° | 46.2mm | 11.9 | 57 |
| May | 18.4° | 8.2° | 57.7mm | 12.9 | 69 |
| June | 21.5° | 11.4° | 70.4mm | 12.6 | 75 |
| July | 23.2° | 13° | 78.6mm | 14 | 72 |
| August | 23.4° | 12.9° | 80.7mm | 13.3 | 73 |
| September | 19.9° | 10.1° | 69.7mm | 12.9 | 74 |
| October | 15.1° | 7.5° | 64.2mm | 15.4 | 54 |
| November | 9.1° | 3.8° | 63.5mm | 16 | 35 |
| December | 5.9° | 1.6° | 75.4mm | 17.2 | 24 |
January in Oldenburg averages a daily high of 4.9°C with nights around 0.4°C. Expect roughly 16.6 wet days totalling 65.4mm. A hard month to visit for comfort alone.
February in Oldenburg averages a daily high of 6.6°C with nights around 1°C. Expect roughly 14.8 wet days totalling 61.7mm. A hard month to visit for comfort alone.
March in Oldenburg averages a daily high of 9.4°C with nights around 1.8°C. Expect roughly 13.4 wet days totalling 53.6mm. Demanding conditions — pack for it and plan indoor options.
April in Oldenburg averages a daily high of 14°C with nights around 4.1°C. Expect roughly 11.9 wet days totalling 46.2mm. Generally workable, with some weather to plan around.
May in Oldenburg averages a daily high of 18.4°C with nights around 8.2°C. Expect roughly 12.9 wet days totalling 57.7mm. Generally workable, with some weather to plan around.
June in Oldenburg averages a daily high of 21.5°C with nights around 11.4°C. Expect roughly 12.6 wet days totalling 70.4mm. Comfortable conditions for being outdoors all day.
July in Oldenburg averages a daily high of 23.2°C with nights around 13°C. Expect roughly 14 wet days totalling 78.6mm. Generally workable, with some weather to plan around.
August in Oldenburg averages a daily high of 23.4°C with nights around 12.9°C. Expect roughly 13.3 wet days totalling 80.7mm. Generally workable, with some weather to plan around.
September in Oldenburg averages a daily high of 19.9°C with nights around 10.1°C. Expect roughly 12.9 wet days totalling 69.7mm. Generally workable, with some weather to plan around.
October in Oldenburg averages a daily high of 15.1°C with nights around 7.5°C. Expect roughly 15.4 wet days totalling 64.2mm. Demanding conditions — pack for it and plan indoor options.
November in Oldenburg averages a daily high of 9.1°C with nights around 3.8°C. Expect roughly 16 wet days totalling 63.5mm. Demanding conditions — pack for it and plan indoor options.
December in Oldenburg averages a daily high of 5.9°C with nights around 1.6°C. Expect roughly 17.2 wet days totalling 75.4mm. 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. Oldenburg peaks at 75.
Based on 30 years of records, May–September scores highest for comfort in Oldenburg, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 23.4°C.
August is the wettest, averaging 80.7mm of rain across roughly 13.3 wet days.
January is the coolest month, with average daily highs around 4.9°C.