Vilnius weather in September
“Mild and bright — an underrated time to visit.”
Roughly 10 rainy days across the month, on average.
In september, Vilnius settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 18°C (65°F), cooling to 10°C after sunset. Rainfall is moderate — around 10 rainy days spread through the month. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Vilnius in September
- •A light layer for cool mornings and evenings
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Vilnius in September
- →Breathable travel pantsAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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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.
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.
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.