The best time to visit Vilnius is June through September, when average highs land in the comfortable low-20s and the Old Town is at its liveliest. June brings a 22.5 °C average high with 12 rain days, while September eases back to 18.1 °C with 10 rain days and still-generous light. July and August are peak season, when school holidays fill the cobbled lanes and prices climb — July also logs the most rain, at 15 rain days. Winter is the quiet, low season, with January highs of -0.8 °C and just 2 hours of sunshine a day.
Best months JuneJulyAugustSeptember
Vilnius month by month
Average highs and lows (°C), 2016–2025. Highlighted bars are the best months.
| Month | High | Low | Rain days | Sun / day |
|---|---|---|---|---|
| January | -0.8 °C | -5 °C | 13 | 2 h |
| February | 1.1 °C | -4 °C | 11 | 3.9 h |
| March | 6.2 °C | -1.4 °C | 10 | 6.8 h |
| April | 12 °C | 2.8 °C | 10 | 9 h |
| May | 17.4 °C | 7.5 °C | 11 | 11.5 h |
| June | 22.5 °C | 12.8 °C | 12 | 12.9 h |
| July | 22.8 °C | 14.4 °C | 15 | 11.7 h |
| August | 22.8 °C | 13.9 °C | 12 | 11.2 h |
| September | 18.1 °C | 10.2 °C | 10 | 8.5 h |
| October | 11.1 °C | 5.3 °C | 14 | 5 h |
| November | 4.8 °C | 1.1 °C | 13 | 2 h |
| December | 1.2 °C | -2.4 °C | 15 | 1.3 h |
How the months are picked.A month qualifies when its average high sits in the comfortable 20–28 °C band (scored down towards 9 °C and 37 °C), rain days are few and sunshine hours are high — at least 78 % of the city's best-scoring month. July and August are then set aside as peak season (school-holiday crowds and prices) whenever at least three other months qualify; where summer is the only comfortable window they stay. Figures are ten-year averages (2016-01-01 to 2025-12-31) from ERA5 reanalysis data via Open-Meteo (CC BY 4.0) for the city centre coordinates.
When to go, and what to expect
Spring (Mar–May)
Great for mild-weather sightseeing before the summer rush.
Summer (Jun–Aug)
The prime window; pick June for warmth without the fullest crowds.
Autumn (Sep–Nov)
September is a golden-light sweet spot; later months turn grey.
Winter (Dec–Feb)
For festive markets and snow-dusted Old Town, not warm-weather touring.
Notable events
- December
- Vilnius Christmas Market and tree lighting
- February
- Užgavėnės (Lithuanian carnival / Mardi Gras)
- March
- Kaziuko mugė (St. Casimir's Fair)
- June
- Vilnius Culture Night (Kultūros naktis)
Frequently asked
Is Vilnius too hot in August?
No. August averages a high of 22.8 °C, comfortably in the warm-but-mild range, with 12 rain days and 11.2 hours of sunshine a day.
What is the rainiest month in Vilnius?
July and December are the wettest, each with 15 rain days. July's rain comes alongside warm 22.8 °C highs, so showers rarely stop sightseeing.
Is winter worth visiting?
Only if you want festive markets and a snowy Old Town. January highs sit at -0.8 °C with lows of -5 °C and just 2 hours of sunshine a day, so pack for real cold.
Know when to go? Now decide where to stay — our Vilnius area guide →
Areas of Vilnius
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Sources
- Open-Meteo historical weather API — monthly climate normals, 2016–2025 (CC BY 4.0)
- ERA5 reanalysis (ECMWF / Copernicus) — the underlying temperature, precipitation and sunshine data
- ReasonStay methodology — how the best months are computed and checked
An independent guide to Vilnius — honest, verified, no invented data. Climate figures: ERA5 via Open-Meteo, 2016–2025 averages; the best months are computed from them, not opinion.