Warsaw vs Vilnius

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Warsaw edges ahead as the better destination in September. Warsaw offers 8 hours of daily sunshine with only 10 rain days, while Vilnius sees 4 sunshine hours and 4 rain days.

Warsaw sits in the comfortable travel range at 18°C. Vilnius is cooler at 10°C.

For travelers who prioritize dry weather, Vilnius is the stronger choice in September. Warsaw receives 4 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Warsaw reaches an average high of 18°C (64°F) and drops to 10°C (50°F) at night during September. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Vilnius averages 10°C (50°F) for the high and -2°C (28°F) for the low, with a daily range of 12°C. There is a notable 8°C gap between the two cities, so expect a very different feel.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Warsaw receives approximately 58 mm of rainfall across 10 rain days during September. You can expect rain roughly every other day.

Vilnius sees 50 mm over 4 rain days. That makes Vilnius the drier option by 6 rain days and 8 mm of total precipitation.

Both cities share similar humidity levels at 65%.