| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -1.5° | -6.2° | 34.4mm | 16.8 | 3 |
| February | 0.1° | -5.9° | 41.2mm | 18.5 | 3 |
| March | 4.4° | -3.2° | 38.7mm | 13.8 | 15 |
| April | 12.7° | 2.4° | 28.2mm | 11.3 | 54 |
| May | 18.2° | 7° | 46.6mm | 11.7 | 71 |
| June | 22.3° | 10.9° | 58.3mm | 12 | 76 |
| July | 23.9° | 13.2° | 46.4mm | 10 | 80 |
| August | 23.4° | 12.5° | 63.1mm | 11.7 | 77 |
| September | 18.2° | 8° | 62.7mm | 9.3 | 76 |
| October | 10.7° | 4.1° | 29.8mm | 12 | 46 |
| November | 3.6° | -0.6° | 39.8mm | 18.5 | 14 |
| December | -0.4° | -4.6° | 46mm | 18.5 | 5 |
January in Vilnius averages a daily high of -1.5°C with nights around -6.2°C. Expect roughly 16.8 wet days totalling 34.4mm. A hard month to visit for comfort alone.
February in Vilnius averages a daily high of 0.1°C with nights around -5.9°C. Expect roughly 18.5 wet days totalling 41.2mm. A hard month to visit for comfort alone.
March in Vilnius averages a daily high of 4.4°C with nights around -3.2°C. Expect roughly 13.8 wet days totalling 38.7mm. A hard month to visit for comfort alone.
April in Vilnius averages a daily high of 12.7°C with nights around 2.4°C. Expect roughly 11.3 wet days totalling 28.2mm. Demanding conditions — pack for it and plan indoor options.
May in Vilnius averages a daily high of 18.2°C with nights around 7°C. Expect roughly 11.7 wet days totalling 46.6mm. Generally workable, with some weather to plan around.
June in Vilnius averages a daily high of 22.3°C with nights around 10.9°C. Expect roughly 12 wet days totalling 58.3mm. Comfortable conditions for being outdoors all day.
July in Vilnius averages a daily high of 23.9°C with nights around 13.2°C. Expect roughly 10 wet days totalling 46.4mm. Comfortable conditions for being outdoors all day.
August in Vilnius averages a daily high of 23.4°C with nights around 12.5°C. Expect roughly 11.7 wet days totalling 63.1mm. Comfortable conditions for being outdoors all day.
September in Vilnius averages a daily high of 18.2°C with nights around 8°C. Expect roughly 9.3 wet days totalling 62.7mm. Comfortable conditions for being outdoors all day.
October in Vilnius averages a daily high of 10.7°C with nights around 4.1°C. Expect roughly 12 wet days totalling 29.8mm. Demanding conditions — pack for it and plan indoor options.
November in Vilnius averages a daily high of 3.6°C with nights around -0.6°C. Expect roughly 18.5 wet days totalling 39.8mm. A hard month to visit for comfort alone.
December in Vilnius averages a daily high of -0.4°C with nights around -4.6°C. Expect roughly 18.5 wet days totalling 46mm. 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. Vilnius peaks at 80.
Based on 30 years of records, June–September scores highest for comfort in Vilnius, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 23.9°C.
August is the wettest, averaging 63.1mm of rain across roughly 11.7 wet days.
January is the coolest month, with average daily highs around -1.5°C.