| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.4° | -2.7° | 44.8mm | 15 | 10 |
| February | 5.6° | -2.1° | 36.7mm | 12 | 24 |
| March | 9.6° | -0.5° | 37.6mm | 11.9 | 39 |
| April | 15.7° | 2.7° | 30.3mm | 9.7 | 67 |
| May | 20.6° | 7° | 47.7mm | 10.9 | 78 |
| June | 24.4° | 10.8° | 57.1mm | 10.5 | 79 |
| July | 25.7° | 12.9° | 82.3mm | 12.6 | 75 |
| August | 25.6° | 12.4° | 55.7mm | 10.7 | 79 |
| September | 20.8° | 8.4° | 46.3mm | 9.5 | 81 |
| October | 14.9° | 4.9° | 41.3mm | 11.3 | 61 |
| November | 8.5° | 1.5° | 42.7mm | 12 | 38 |
| December | 4.6° | -1.1° | 40.8mm | 13.8 | 18 |
January in Zielona Góra averages a daily high of 3.4°C with nights around -2.7°C. Expect roughly 15 wet days totalling 44.8mm. A hard month to visit for comfort alone.
February in Zielona Góra averages a daily high of 5.6°C with nights around -2.1°C. Expect roughly 12 wet days totalling 36.7mm. A hard month to visit for comfort alone.
March in Zielona Góra averages a daily high of 9.6°C with nights around -0.5°C. Expect roughly 11.9 wet days totalling 37.6mm. Demanding conditions — pack for it and plan indoor options.
April in Zielona Góra averages a daily high of 15.7°C with nights around 2.7°C. Expect roughly 9.7 wet days totalling 30.3mm. Generally workable, with some weather to plan around.
May in Zielona Góra averages a daily high of 20.6°C with nights around 7°C. Expect roughly 10.9 wet days totalling 47.7mm. Comfortable conditions for being outdoors all day.
June in Zielona Góra averages a daily high of 24.4°C with nights around 10.8°C. Expect roughly 10.5 wet days totalling 57.1mm. Comfortable conditions for being outdoors all day.
July in Zielona Góra averages a daily high of 25.7°C with nights around 12.9°C. Expect roughly 12.6 wet days totalling 82.3mm. Comfortable conditions for being outdoors all day.
August in Zielona Góra averages a daily high of 25.6°C with nights around 12.4°C. Expect roughly 10.7 wet days totalling 55.7mm. Comfortable conditions for being outdoors all day.
September in Zielona Góra averages a daily high of 20.8°C with nights around 8.4°C. Expect roughly 9.5 wet days totalling 46.3mm. Comfortable conditions for being outdoors all day.
October in Zielona Góra averages a daily high of 14.9°C with nights around 4.9°C. Expect roughly 11.3 wet days totalling 41.3mm. Generally workable, with some weather to plan around.
November in Zielona Góra averages a daily high of 8.5°C with nights around 1.5°C. Expect roughly 12 wet days totalling 42.7mm. Demanding conditions — pack for it and plan indoor options.
December in Zielona Góra averages a daily high of 4.6°C with nights around -1.1°C. Expect roughly 13.8 wet days totalling 40.8mm. 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. Zielona Góra peaks at 81.
Based on 30 years of records, May–September scores highest for comfort in Zielona Góra, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 25.7°C.
July is the wettest, averaging 82.3mm of rain across roughly 12.6 wet days.
January is the coolest month, with average daily highs around 3.4°C.