Amsterdam vs Barcelona

Amsterdam and Barcelona are closely matched in September. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Amsterdam sits in the comfortable travel range at 18°C. Barcelona is also comfortable at 22°C.

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

Amsterdam reaches an average high of 18°C (64°F) and drops to 12°C (54°F) at night during September. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Barcelona averages 22°C (72°F) for the high and 13°C (55°F) for the low, with a daily range of 9°C. The 4°C difference is noticeable but not dramatic.

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

Amsterdam receives approximately 70 mm of rainfall across 12 rain days during September. You can expect rain roughly every other day.

Barcelona sees 45 mm over 4 rain days. That makes Barcelona the drier option by 8 rain days and 25 mm of total precipitation.

Both cities share similar humidity levels at 65%.