| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 1.9° | -5.5° | 26.6mm | 9.4 | 15 |
| February | 5° | -3.5° | 24.1mm | 9.3 | 25 |
| March | 10.4° | -0.3° | 32.3mm | 9.6 | 47 |
| April | 17.2° | 4.7° | 51.3mm | 9.4 | 72 |
| May | 23.1° | 9.8° | 64.3mm | 10.6 | 79 |
| June | 26.9° | 13.8° | 95.9mm | 11.6 | 77 |
| July | 29.1° | 15.4° | 94.2mm | 11.3 | 69 |
| August | 28.8° | 14.8° | 52.9mm | 8 | 77 |
| September | 23° | 10.3° | 56.4mm | 7.9 | 84 |
| October | 16.5° | 5.2° | 46.9mm | 7.3 | 74 |
| November | 9.1° | 1.4° | 35.4mm | 8.7 | 47 |
| December | 3.2° | -3.6° | 34.1mm | 9.8 | 18 |
January in Bacău averages a daily high of 1.9°C with nights around -5.5°C. Expect roughly 9.4 wet days totalling 26.6mm. A hard month to visit for comfort alone.
February in Bacău averages a daily high of 5°C with nights around -3.5°C. Expect roughly 9.3 wet days totalling 24.1mm. A hard month to visit for comfort alone.
March in Bacău averages a daily high of 10.4°C with nights around -0.3°C. Expect roughly 9.6 wet days totalling 32.3mm. Demanding conditions — pack for it and plan indoor options.
April in Bacău averages a daily high of 17.2°C with nights around 4.7°C. Expect roughly 9.4 wet days totalling 51.3mm. Generally workable, with some weather to plan around.
May in Bacău averages a daily high of 23.1°C with nights around 9.8°C. Expect roughly 10.6 wet days totalling 64.3mm. Comfortable conditions for being outdoors all day.
June in Bacău averages a daily high of 26.9°C with nights around 13.8°C. Expect roughly 11.6 wet days totalling 95.9mm. Comfortable conditions for being outdoors all day.
July in Bacău averages a daily high of 29.1°C with nights around 15.4°C. Expect roughly 11.3 wet days totalling 94.2mm. Generally workable, with some weather to plan around.
August in Bacău averages a daily high of 28.8°C with nights around 14.8°C. Expect roughly 8 wet days totalling 52.9mm. Comfortable conditions for being outdoors all day.
September in Bacău averages a daily high of 23°C with nights around 10.3°C. Expect roughly 7.9 wet days totalling 56.4mm. Comfortable conditions for being outdoors all day.
October in Bacău averages a daily high of 16.5°C with nights around 5.2°C. Expect roughly 7.3 wet days totalling 46.9mm. Generally workable, with some weather to plan around.
November in Bacău averages a daily high of 9.1°C with nights around 1.4°C. Expect roughly 8.7 wet days totalling 35.4mm. Demanding conditions — pack for it and plan indoor options.
December in Bacău averages a daily high of 3.2°C with nights around -3.6°C. Expect roughly 9.8 wet days totalling 34.1mm. 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. Bacău peaks at 84.
Based on 30 years of records, May–June scores highest for comfort in Bacău, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 29.1°C.
June is the wettest, averaging 95.9mm of rain across roughly 11.6 wet days.
January is the coolest month, with average daily highs around 1.9°C.