Barcelona vs Valencia

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Valencia edges ahead as the better destination in September. Valencia offers 5 hours of daily sunshine with only 3 rain days, while Barcelona sees 10 sunshine hours and 11 rain days.

Barcelona sits in the comfortable travel range at 24°C. Valencia is also comfortable at 22°C.

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

Barcelona reaches an average high of 24°C (75°F) and drops to 18°C (64°F) at night during September. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Valencia averages 22°C (72°F) for the high and 9°C (48°F) for the low, with a daily range of 13°C. The 2°C difference is noticeable but not dramatic.

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

Barcelona receives approximately 79 mm of rainfall across 11 rain days during September. You can expect rain roughly every other day.

Valencia sees 15 mm over 3 rain days. That makes Valencia the drier option by 8 rain days and 64 mm of total precipitation.

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