Weather Comparison
Side-by-side weather comparison for September
| Metric | Barcelona | Nice | Better |
|---|---|---|---|
| Average HighHigher is warmer | 24°C (75°F)▲ | 23°C (73°F) | Barcelona |
| Average LowHigher is milder | 18°C (64°F)▲ | 17°C (63°F) | Barcelona |
| Rain DaysFewer is drier | 11 days | 8 days▲ | Nice |
| PrecipitationLess is drier | 79 mm | 74 mm▲ | Nice |
| Sunshine HoursMore is sunnier | 10h/day | 11h/day▲ | Nice |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 16 km/h | 11 km/h▲ | Nice |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Nice edges ahead as the better destination in September. Nice offers 11 hours of daily sunshine with only 8 rain days, while Barcelona sees 10 sunshine hours and 11 rain days.
Barcelona sits in the comfortable travel range at 24°C. Nice is also comfortable at 23°C.
For travelers who prioritize dry weather, Nice is the stronger choice in September. Nice receives 1 more hour 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.
Nice averages 23°C (73°F) for the high and 17°C (63°F) for the low, with a daily range of 6°C. The two cities feel quite similar in terms of temperature.
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.
Nice sees 74 mm over 8 rain days. That makes Nice the drier option by 3 rain days and 5 mm of total precipitation.
Both cities share similar humidity levels at 65%.
Highs of 24°C, lows of 18°C, 11 rain days
Highs of 23°C, lows of 17°C, 8 rain days
Pack for both: light layers, a light jacket for evenings, sunscreen. These items are useful in either destination during September.
The table below shows average high temperatures and rain days for every month. September is highlighted for quick reference.
| Month | Barcelona | Nice | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 13°C | 6d | 11°C | 7d |
| Feb | 13°C | 6d | 12°C | 8d |
| Mar | 16°C | 7d | 14°C | 8d |
| Apr | 17°C | 9d | 17°C | 10d |
| May | 21°C | 7d | 20°C | 10d |
| Jun | 25°C | 6d | 24°C | 8d |
| Jul | 27°C | 5d | 27°C | 6d |
| Aug | 28°C | 7d | 27°C | 6d |
| Sep | 24°C | 11d | 23°C | 8d |
| Oct | 21°C | 10d | 19°C | 9d |
| Nov | 16°C | 8d | 15°C | 10d |
| Dec | 13°C | 6d | 12°C | 8d |
Barcelona Weather in September
Full forecast, packing tips, and activities
Nice Weather in September
Full forecast, packing tips, and activities