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The temperatures in Vilnius in September are quite cold with temperatures between 9°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Vilnius during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Vilnius in September 2025.
If you’re planning to visit Vilnius in the near future, we highly recommend that you review the 14 day weather forecast for Vilnius before you arrive.
Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
---|---|---|---|---|---|---|---|
January | -3° / -7° | 5 | 6 | 21 | 75 mm | Awful | Vilnius in January |
February | -1° / -6° | 4 | 4 | 20 | 55 mm | Awful | Vilnius in February |
March | 4° / -2° | 6 | 11 | 14 | 53 mm | Awful | Vilnius in March |
April | 11° / 3° | 6 | 19 | 5 | 55 mm | Bad | Vilnius in April |
May | 17° / 8° | 7 | 23 | 0 | 92 mm | Ok | Vilnius in May |
June | 21° / 11° | 6 | 24 | 0 | 78 mm | Good | Vilnius in June |
July | 23° / 14° | 7 | 24 | 0 | 100 mm | Good | Vilnius in July |
August | 23° / 13° | 5 | 26 | 0 | 81 mm | Perfect | Vilnius in August |
September | 17° / 9° | 5 | 25 | 0 | 45 mm | Good | Vilnius in September |
October | 10° / 4° | 6 | 23 | 2 | 52 mm | Bad | Vilnius in October |
November | 5° / 1° | 6 | 18 | 6 | 55 mm | Awful | Vilnius in November |
December | -1° / -4° | 6 | 7 | 18 | 69 mm | Awful | Vilnius in December |