Vilnius in September
In September, Vilnius averages 17°C (63°F) during the day and 10°C (49°F) at night, with frequent rain — about 16 days of the month see precipitation (56 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
September is one of the wetter and less comfortable months in Vilnius. If your dates are flexible, consider a different time of year.
How September compares to the rest of the year in Vilnius
September is in the middle of the year for warmth in Vilnius (5th of 12) and one of the driest months (12th of 12). Daytime temperature runs 6°C above the annual average (11°C). September runs 6°C cooler than August (23°C) and cools 7°C in October (11°C).
September sunrise & sunset in Vilnius
Times shown for Vilnius local time (Europe/Vilnius), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Vilnius — September
Golden-hour and blue-hour windows for the 15th of September, in Vilnius's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Vilnius in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Vilnius's popularity.
Crowds & pricing — September in Vilnius
Vilnius is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — September in Vilnius
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Vilnius in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | -1°C / 29°F | -5°C / 22°F | 59 mm | 20 | — |
| February | 1°C / 34°F | -4°C / 25°F | 39 mm | 17 | — |
| March | 6°C / 43°F | -1°C / 30°F | 43 mm | 18 | — |
| April | 12°C / 53°F | 3°C / 37°F | 46 mm | 18 | — |
| May | 17°C / 63°F | 8°C / 46°F | 74 mm | 18 | — |
| June | 22°C / 72°F | 13°C / 55°F | 71 mm | 19 | — |
| July | 23°C / 73°F | 14°C / 58°F | 99 mm | 23 | — |
| August | 23°C / 73°F | 14°C / 57°F | 94 mm | 19 | — |
| September | 17°C / 63°F | 10°C / 49°F | 56 mm | 16 | — |
| October | 11°C / 51°F | 5°C / 41°F | 61 mm | 19 | — |
| November | 5°C / 40°F | 1°C / 34°F | 55 mm | 19 | — |
| December | 1°C / 34°F | -2°C / 28°F | 60 mm | 19 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Vilnius in September →
Frequently asked questions
How hot is Vilnius in September?
In September, Vilnius averages a high of 17°C (63°F) and a low of 10°C (49°F) — generally mild and pleasant.
Does it rain a lot in Vilnius in September?
September is quite rainy in Vilnius, with about 16 rainy days on average.
Is September a good time to visit Vilnius?
September is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Vilnius in September?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full September packing list for Vilnius for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.