Baku vs Yerevan

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Yerevan edges ahead as the better destination in September. Yerevan offers 5 hours of daily sunshine with only 3 rain days, while Baku sees 10 sunshine hours and 4 rain days.

Baku sits in the comfortable travel range at 25°C. Yerevan is also comfortable at 22°C.

For travelers who prioritize dry weather, Yerevan is the stronger choice in September. Baku receives 5 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Baku reaches an average high of 25°C (77°F) and drops to 20°C (68°F) at night during September. The daily temperature range is 5°C, meaning relatively stable temperatures from day to night.

Yerevan averages 22°C (72°F) for the high and 9°C (48°F) for the low, with a daily range of 13°C. The 3°C difference is noticeable but not dramatic.

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

Baku receives approximately 22 mm of rainfall across 4 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Yerevan sees 15 mm over 3 rain days. That makes Yerevan the drier option by 1 rain day and 7 mm of total precipitation.

Humidity also differs: Baku averages 65% while Yerevan sits at 45%. Baku will feel muggier, especially at higher temperatures.