| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -7.4° | -12.5° | 58.8mm | 13.1 | 4 |
| February | -7° | -12.1° | 52.2mm | 12.7 | 5 |
| March | -5.1° | -10.8° | 69.4mm | 15.4 | 0 |
| April | -0.6° | -6.2° | 67.8mm | 15.6 | 3 |
| May | 3.8° | -1° | 93.2mm | 17.4 | 14 |
| June | 8° | 2.7° | 137.3mm | 16.2 | 32 |
| July | 10.3° | 4.7° | 139.6mm | 15.8 | 39 |
| August | 10.9° | 5° | 107.2mm | 12.4 | 46 |
| September | 6.5° | 0.9° | 76.2mm | 10.8 | 34 |
| October | 3.4° | -2.4° | 54.1mm | 9.2 | 22 |
| November | 0.2° | -6.3° | 48.8mm | 9.9 | 13 |
| December | -4.5° | -10.3° | 57.6mm | 11.7 | 7 |
January in Sfântu Gheorghe averages a daily high of -7.4°C with nights around -12.5°C. Expect roughly 13.1 wet days totalling 58.8mm. A hard month to visit for comfort alone.
February in Sfântu Gheorghe averages a daily high of -7°C with nights around -12.1°C. Expect roughly 12.7 wet days totalling 52.2mm. A hard month to visit for comfort alone.
March in Sfântu Gheorghe averages a daily high of -5.1°C with nights around -10.8°C. Expect roughly 15.4 wet days totalling 69.4mm. A hard month to visit for comfort alone.
April in Sfântu Gheorghe averages a daily high of -0.6°C with nights around -6.2°C. Expect roughly 15.6 wet days totalling 67.8mm. A hard month to visit for comfort alone.
May in Sfântu Gheorghe averages a daily high of 3.8°C with nights around -1°C. Expect roughly 17.4 wet days totalling 93.2mm. A hard month to visit for comfort alone.
June in Sfântu Gheorghe averages a daily high of 8°C with nights around 2.7°C. Expect roughly 16.2 wet days totalling 137.3mm. A hard month to visit for comfort alone.
July in Sfântu Gheorghe averages a daily high of 10.3°C with nights around 4.7°C. Expect roughly 15.8 wet days totalling 139.6mm. Demanding conditions — pack for it and plan indoor options.
August in Sfântu Gheorghe averages a daily high of 10.9°C with nights around 5°C. Expect roughly 12.4 wet days totalling 107.2mm. Demanding conditions — pack for it and plan indoor options.
September in Sfântu Gheorghe averages a daily high of 6.5°C with nights around 0.9°C. Expect roughly 10.8 wet days totalling 76.2mm. A hard month to visit for comfort alone.
October in Sfântu Gheorghe averages a daily high of 3.4°C with nights around -2.4°C. Expect roughly 9.2 wet days totalling 54.1mm. A hard month to visit for comfort alone.
November in Sfântu Gheorghe averages a daily high of 0.2°C with nights around -6.3°C. Expect roughly 9.9 wet days totalling 48.8mm. A hard month to visit for comfort alone.
December in Sfântu Gheorghe averages a daily high of -4.5°C with nights around -10.3°C. Expect roughly 11.7 wet days totalling 57.6mm. 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. Sfântu Gheorghe peaks at 46.
Based on 30 years of records, July–August scores highest for comfort in Sfântu Gheorghe, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 10.9°C.
July is the wettest, averaging 139.6mm of rain across roughly 15.8 wet days.
January is the coolest month, with average daily highs around -7.4°C.