September · Lithuania
Best time to visit Vilnius in September Weather, crowds & prices
Weather in Vilnius in September
Average temperature 15°C, 32 mm of rain, about 24 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.6/10
Ranked #1 of 12 months
- Avg temp
- 15°C
- Rainfall
- 32 mm
- Humidity
- 74%
- Days with 6h+ sun
- 24
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Vilnius scores 9.6/10 for sightseeing and cultural travel - the single best month of the year. Expect around 15°C, 32 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Vilnius folds a baroque old town, the self-declared Užupis republic, and pine-covered hills into one walkable city.
September in Vilnius tops the year's climate scores
September averages 15°C (59°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 32 mm of rain — occasional showers rather than washed-out days — alongside about 24 days with 6+ hours of sunshine and 12.7 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Vilnius at 9.6/10 — the reference point every other month on this page is measured against.
Pack layers you can shed by midday plus one warm layer for the evening.
Plan for peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Vilnius in September?
- In September, Vilnius averages 15°C, 32 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 9.6/10.
- Is September a good time to visit Vilnius?
- September earns a 9.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Vilnius in September?
- Expect about 32 mm of rain in September. Average humidity is 74% and there are about 24 days with 6+ hours of sunshine.
Curated in Vilnius
Tickets & experiences
Things to do in Vilnius
Vilnius, Lithuania. Live activities and tours from GetYourGuide, matched to this destination.