Lithuania Vilnius Weather in September — Climate Guide
September in Vilnius is high
Vilnius Weather in September — Quick Answer
As of 2026- Avg temp
- 17° / 8°
- Rainfall
- 55mm · 10 days
- Crowds
- Moderate
As of 2026, Vilnius in September averages a high of 17°C and low of 8°C with 55mm of rain over about 10 days. Early autumn. A jacket and knitwear.
September is high for Vilnius.
A sweet spot — mild, golden, and better value than summer.
Travel score
Vilnius September Weather Stats
Avg High
17°C
Avg Low
8°C
Rainy Days
10
55mm total
Sunshine
6h
Daily avg
Humidity
78%
comfortable
UV Index
3
Moderate
Wind
12 km/h
Gusts 30
Sea Temp
15°C
too cold to swim (chilly)
Crowds
Moderate
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
7 μg/m³
PM10
13 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
16°C
Nighttime
7°C
Humidity and wind affect how the actual temperature feels.
Wind
12 km/h
Max gust 30 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Pleasant weather (17/8°C)
- Foliage starts
- Quieter and cheaper than summer
Cons
- Cooler evenings
- Showery days
September Events & Festivals
- Autumn begins, foliage starts
- Capital Days / Sostinės dienos
Vilnius in September — Full Picture
A sweet spot — mild, golden, and better value than summer.
What to Wear & What to Pack
Early autumn. A jacket and knitwear.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
11.3°C
2°C
8.3/mo
Summer (Jun·Jul·Aug)
22°C
12°C
10.7/mo
Autumn (Sep·Oct·Nov)
Current11°C
4°C
11/mo
Winter (Dec·Jan·Feb)
-1.7°C
-7.7°C
10/mo
Vilnius Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| -3° | -9° | 10d·40mm | 1h | 87% | 0 | Quiet | Low season | |
| -2° | -9° | 9d·35mm | 2h | 84% | 1 | Quiet | Low season | |
| 4° | -3° | 8d·35mm | 4h | 78% | 2 | Quiet | Shoulder | |
| 12° | 2° | 8d·40mm | 6h | 70% | 3 | Moderate | Shoulder | |
| 18° | 7° | 9d·45mm | 8h | 66% | 4 | Busy | Shoulder | |
| June (long daylight) (Best) | 21° | 11° | 10d·65mm | 9h | 68% | 5 | Very busy | Peak |
| July (best of summer) (Best) | 23° | 13° | 11d·75mm | 9h | 70% | 5 | Very busy | Peak |
| August (end of summer) (Best) | 22° | 12° | 11d·75mm | 8h | 73% | 5 | Very busy | Peak |
| 17° | 8° | 10d·55mm | 6h | 78% | 3 | Moderate | Shoulder | |
| 11° | 4° | 11d·55mm | 3h | 84% | 1 | Quiet | Low season | |
| 5° | 0° | 12d·50mm | 1h | 88% | 0 | Quiet | Low season | |
| 0° | -5° | 11d·45mm | 1h | 89% | 0 | Busy | Peak |
View Other Months
Vilnius September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Vilnius?
Vilnius in September is high. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Vilnius in September?
Vilnius September averages a high of 17°C and a low of 8°C.
Does it rain much in Vilnius in September?
Vilnius September averages 55mm of rainfall over about 10 rainy days.
What should I wear in Vilnius in September?
Early autumn. A jacket and knitwear.
What time are sunrise and sunset in Vilnius in September?
Vilnius September sunrise is 06:50 and sunset is 19:20, with 12h 30min of daylight.
What's the air quality like in Vilnius in September?
Vilnius September air quality (AQI) averages 26, rated Good. PM2.5 averages 7μg/m³.
What activities are recommended in Vilnius in September?
In September, Vilnius is great for Old Town, Gediminas Tower, Užupis.
Is September peak season in Vilnius?
Vilnius September crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Vilnius
View Other Months
Planning a September trip to Vilnius?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.