September in Vilnius 2026: Full Guide
“Mild and bright — an underrated time to visit.”
Roughly 10 rainy days across the month, on average.
September brings the year's cleanest air to Vilnius. Highs drop to 18.1°C (65°F), lows cool to 10.1°C (50°F), precipitation eases to 55mm across 9.8 days, and sunshine holds a comfortable 8.5 hours. Golden birch leaves ignite Bernardine Park, mist rises off the Neris at dawn, and outdoor tables reappear on rainless afternoons through mid-month.
The Vilnius Marathon on the second Sunday of September routes runners past every Old Town landmark and closes central streets. Capital Days festival delivers concerts and craft markets on Cathedral Square. The amber shops along Pilies Street mount their autumn collections. Cepelinai potato dumplings return to hearty winter mode with wild-mushroom fillings, and Užupis hosts its final open-air gallery evenings before frost.
Across 11 complete years (2015-2025), September in Vilnius has proven the most reliable autumn month, with 2020 delivering a warm 25°C first week and 2017 turning wet by mid-month. First frost typically hits after September 20. Seasonal outlooks for 2026 lean warm, extending pleasant terrace weather potentially into the final week.
Travelers heading to Vilnius in 2026 should aim for the first three weeks of September, when marathon energy and warm afternoons overlap. Pack layers ranging from T-shirts to light fleece, plus waterproof boots for damp mornings. Hotel prices drop sharply after the marathon weekend, making late September in 2026 one of the year's best value windows for the Baltic capital.
Skip the Old Town restaurants and eat cepelinai at Etno Dvaras in Pilaitė or šaltibarščiai at Bernelių Užeiga near the train station. The Halės Turgus market in Naujininkas sells smoked eel and juodoji duona from Trakai. Trolleybus 2 crosses three eras of architecture in twenty minutes. Winter fog off the Neris settles in Žvėrynas but rarely reaches Antakalnis hill.
What to pack for Vilnius in September
September in Vilnius spans summer holdover to genuine autumn, so pack across the range:
- T-shirts plus light fleece or merino mid-layer
- Waterproof walking boots for damp mornings
- Light rain jacket
- Scarf and light gloves for late-month evenings
- Sunglasses for bright afternoons
What to pack for Vilnius in September
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Where to stay in Vilnius
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Shoulder-season pricing — a balance of price and conditions. Rule-based estimates from a couple based in London — actual prices vary.
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Things worth doing
Vilnius Marathon second Sunday, Capital Days festival, Bernardine Park foliage walks, amber gallery browsing, Trakai Castle autumn views, cepelinai wild-mushroom season
September vs. the rest of the year
How this month compares in Vilnius. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Vilnius
September is one of the best months to visit Vilnius — alongside May, June, August. 11-year climate data (2015–2025) confirms it: comfortable temperatures, manageable rainfall, and a healthy dose of sunshine.
See the full best-time-to-visit guide for VilniusOther places with a similar climate right now
Vilnius in September — FAQ
Q01Is September a good time to visit Vilnius?
Is September a good time to visit Vilnius?
Yes — it is a good time to visit, with pleasant, comfortable weather. In September, Vilnius averages a high of 18°C (65°F) and a low of 10°C (50°F), with 55mm of rainfall across roughly 10 rainy days. Užupis Republic Day on April 1 unlocks the bohemian enclave's constitution wall; late May brings Vilnius Culture Night with 200 free courtyard events across the Old Town.
Q02What is the average temperature in Vilnius in September?
What is the average temperature in Vilnius in September?
The average high temperature in Vilnius during September is 18°C (65°F), with an average low of 10°C (50°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive).
Q03How many rainy days does Vilnius have in September?
How many rainy days does Vilnius have in September?
Vilnius averages approximately 10 rainy days in September, with a total monthly rainfall of about 55mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Vilnius in September?
What should I pack for Vilnius in September?
For Vilnius in September, pack layered clothing for changing temperatures, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month. Reflective armband for pedestrians; Lithuanian law requires them after dark and police fine tourists 40 EUR without warning.
Q05How crowded is Vilnius in September?
How crowded is Vilnius in September?
Tourist crowds in Vilnius during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely. Skip the Old Town restaurants and eat cepelinai at Etno Dvaras in Pilaitė or šaltibarščiai at Bernelių Užeiga near the train station. The Halės Turgus market in Naujininkas sells smoked eel and juodoji duona from Trakai. Trolleybus 2 crosses three eras of architecture in twenty minutes. Winter fog off the Neris settles in Žvėrynas but rarely reaches Antakalnis hill.