| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -4° | -9.3° | 54.4mm | 18 | 0 |
| February | -3.4° | -9.5° | 47.8mm | 15 | 0 |
| March | 1° | -6.4° | 42mm | 12.5 | 7 |
| April | 7.6° | -0.4° | 34.9mm | 10.8 | 35 |
| May | 15° | 6.2° | 43.6mm | 9.9 | 64 |
| June | 20° | 11.6° | 60.5mm | 11.6 | 77 |
| July | 22.8° | 14.7° | 72.8mm | 11.7 | 77 |
| August | 21.1° | 13.3° | 79.3mm | 12.1 | 76 |
| September | 15.4° | 8.6° | 67mm | 11.8 | 62 |
| October | 8.3° | 3.4° | 76.6mm | 14.9 | 33 |
| November | 2.5° | -1.3° | 69.7mm | 17.1 | 10 |
| December | -1.4° | -5.8° | 68.9mm | 18.9 | 3 |
January in Vyborg averages a daily high of -4°C with nights around -9.3°C. Expect roughly 18 wet days totalling 54.4mm. A hard month to visit for comfort alone.
February in Vyborg averages a daily high of -3.4°C with nights around -9.5°C. Expect roughly 15 wet days totalling 47.8mm. A hard month to visit for comfort alone.
March in Vyborg averages a daily high of 1°C with nights around -6.4°C. Expect roughly 12.5 wet days totalling 42mm. A hard month to visit for comfort alone.
April in Vyborg averages a daily high of 7.6°C with nights around -0.4°C. Expect roughly 10.8 wet days totalling 34.9mm. Demanding conditions — pack for it and plan indoor options.
May in Vyborg averages a daily high of 15°C with nights around 6.2°C. Expect roughly 9.9 wet days totalling 43.6mm. Generally workable, with some weather to plan around.
June in Vyborg averages a daily high of 20°C with nights around 11.6°C. Expect roughly 11.6 wet days totalling 60.5mm. Comfortable conditions for being outdoors all day.
July in Vyborg averages a daily high of 22.8°C with nights around 14.7°C. Expect roughly 11.7 wet days totalling 72.8mm. Comfortable conditions for being outdoors all day.
August in Vyborg averages a daily high of 21.1°C with nights around 13.3°C. Expect roughly 12.1 wet days totalling 79.3mm. Comfortable conditions for being outdoors all day.
September in Vyborg averages a daily high of 15.4°C with nights around 8.6°C. Expect roughly 11.8 wet days totalling 67mm. Generally workable, with some weather to plan around.
October in Vyborg averages a daily high of 8.3°C with nights around 3.4°C. Expect roughly 14.9 wet days totalling 76.6mm. A hard month to visit for comfort alone.
November in Vyborg averages a daily high of 2.5°C with nights around -1.3°C. Expect roughly 17.1 wet days totalling 69.7mm. A hard month to visit for comfort alone.
December in Vyborg averages a daily high of -1.4°C with nights around -5.8°C. Expect roughly 18.9 wet days totalling 68.9mm. 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. Vyborg peaks at 77.
Based on 30 years of records, June–August scores highest for comfort in Vyborg, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 22.8°C.
August is the wettest, averaging 79.3mm of rain across roughly 12.1 wet days.
January is the coolest month, with average daily highs around -4°C.