Temperature
Cold by day, freezing at night.
Not the best time: Cold weather is the main limitation.
Cold by day, freezing at night.
Some precipitation is expected this month.
Sunshine is scarce under mostly cloudy skies.
Humidity is rarely noticeable in the cool air.
In December, afternoons feel about 21° and nights feel near 19°.
Overcast skies this month.
Breezy December days can feel brisker in open spots.
December late afternoons are around 30°F, and early evening stays near 29°F.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 29 | 22 | 1.9 | 12 | 1.2 | 89 |
| Feb | 32 | 22 | 1.6 | 11 | 2.5 | 85 |
| Mar | 41 | 28 | 1.5 | 10 | 3.8 | 77 |
| Apr | 54 | 37 | 1.8 | 10 | 5.5 | 69 |
| May | 64 | 45 | 2.7 | 12 | 7.8 | 69 |
| Jun | 71 | 52 | 2.9 | 13 | 7.7 | 72 |
| Jul | 74 | 56 | 3.9 | 14 | 7.1 | 75 |
| Aug | 73 | 55 | 3.2 | 12 | 7.0 | 76 |
| Sep | 63 | 47 | 1.9 | 9 | 4.7 | 80 |
| Oct | 51 | 40 | 2.4 | 12 | 3.0 | 85 |
| Nov | 40 | 33 | 1.8 | 11 | 1.1 | 90 |
| Dec | 33 | 26 | 1.9 | 12 | 0.8 | 90 |
Similar climates
Want a side-by-side climate view? Compare Vilnius with Helsinki.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology