What to pack for Barcelona in September
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
Humidity averages 76%; max daily wind around 18 km/h.
How September compares
Best months in Barcelona: April–July & September–November. See the full best time to visit Barcelona guide.
Barcelona in September: the details
In September, Barcelona sees average daytime highs of 26°C (78°F) and overnight lows of 18°C (64°F). Rainfall totals roughly 89 mm across 10.5 rainy days, and the sun shines about 10.3 hours per day with 12.3 hours of daylight mid-month. Relative humidity averages 76%.
In context: September is the 4th-warmest month and the second-wettest in Barcelona. The sunniest month is July (13.5 h/day).
| Metric | September average |
|---|---|
| Daytime high | 26°C / 78°F |
| Overnight low | 18°C / 64°F |
| Rainfall | 89 mm over 10.5 rainy days |
| Sunshine | 10.3 h/day (12.3 h daylight) |
| Humidity | 76% |
| Travel score | 9.2 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Barcelona, Spain (41.39, 2.16) — see our methodology. Actual conditions vary year to year.
Not set on Barcelona? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Barcelona in September?
Daytime highs in Barcelona in September average 26°C (78°F); nights drop to about 18°C.
Does it rain in Barcelona in September?
Expect around 10.5 rainy days and 89 mm of rainfall in September.
Is September a good time to visit Barcelona?
September is one of the best months to visit Barcelona. Overall travel score: 9.2/10. The best months are April–July & September–November.
Also good in September, near Barcelona
Where should you go next month?
Get one email a month with the destinations at their seasonal best. Double opt-in, unsubscribe anytime.