Monthly climate guide
Barcelona weather in September
With highs near 26°C (80°F) and lows around 17°C (63°F), September feels warm in Barcelona. Rainfall averages about 58 mm (some rain) and the sky is a mix of sun and cloud. Daytime highs are 4°C cooler than August and 4°C warmer than October.
What stands out in September
- In Barcelona, September is early autumn.
- Comfortable temperatures make it easy to walk between Sagrada Família and Park Güell.
- Just 30 km apart, but Barcelona runs about 2°C warmer than Mataró this month.
- It cools down fast from here: October is about 4°C cooler.
Avg high
26°C
80°F
Avg low
17°C
63°F
Rainfall
58 mm
some rain
Humidity
69%
relative
Sky
53%
cloud · a mix of sun and cloud
Barcelona weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 13°C / 56°F | 4°C / 39°F | 37 mm | 75% | 69% |
| February | 14°C / 57°F | 4°C / 39°F | 27 mm | 71% | 65% |
| March | 17°C / 62°F | 6°C / 43°F | 57 mm | 70% | 61% |
| April | 19°C / 67°F | 9°C / 48°F | 60 mm | 70% | 60% |
| May | 23°C / 73°F | 12°C / 54°F | 43 mm | 66% | 56% |
| June | 27°C / 81°F | 17°C / 62°F | 32 mm | 63% | 45% |
| July | 30°C / 86°F | 20°C / 68°F | 34 mm | 63% | 36% |
| August | 30°C / 86°F | 20°C / 69°F | 36 mm | 65% | 40% |
| September | 26°C / 80°F | 17°C / 63°F | 58 mm | 69% | 53% |
| October | 22°C / 72°F | 14°C / 57°F | 76 mm | 74% | 65% |
| November | 17°C / 62°F | 9°C / 47°F | 77 mm | 76% | 68% |
| December | 14°C / 57°F | 5°C / 42°F | 32 mm | 76% | 66% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A small travel umbrella, just in case
Is September a good time to visit Barcelona?
Our Barcelona guide recommends: May to June or September to October, avoiding the peak summer heat and crowds.
Book Sagrada Família and Park Güell tickets online in advance — both cap daily visitor numbers and often sell out.
Best time to visit Barcelona →Other Spain cities in September
Cite or embed this data
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Barcelona weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/spain/barcelona/september
<a href="https://weathercompare.eu/weather/spain/barcelona/september">Barcelona weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/spain/barcelona" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Barcelona weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/spain/barcelona/september">Barcelona weather in September</a> – WeatherCompare</p>
Barcelona in September: quick answers
Is September a good time to visit Barcelona?
September is a reasonable time for Barcelona: highs around 26°C and about 58 mm of rain, though not one of the three best months.
How warm is Barcelona in September?
Average highs are about 26°C (80°F) and average lows about 17°C (63°F), based on 10 years of daily data.
Does it rain a lot in Barcelona in September?
Barcelona typically gets around 58 mm of rain in September — some rain.
When is the best time to visit Barcelona?
May to June or September to October, avoiding the peak summer heat and crowds.
Figures are long-term averages for the area around Barcelona (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.