Climatological averages, historical records, packing tips and best time to visit Barcelona during October. AEMET / ECMWF reanalysis 1991-2020.
Reference values based on 1991-2020 AEMET / ECMWF climatology. Year-to-year variation can be significant.
| Metric | Value | Date |
|---|---|---|
| All-time high | 39.8 °C | August 2010 |
| 24h rainfall | 156 mm | September 1962 |
| All-time low | -7.1 °C | January 1985 |
| Urban snowfall | 20 cm | March 2010 |
Official records (AEMET). Secondary stations may have more extreme readings.
In October, Barcelona typically shows rainy autumn with mild highs. The average high temperature is around 23°C and the average low around 14°C, with monthly rainfall of 93 mm spread over roughly 7 rain days and about 185 hours of sunshine. Average relative humidity stands at 74% and wind speed averages 11 km/h.
The local calendar in October is shaped by Tarrega fair and Halloween, so checking the forecast a few days in advance is worth it before any outdoor activity. Averages give a general picture but extreme events can vary widely: in October, Barcelona has recorded both unusually warm spells and cold incursions across recent decades.
For a typical stay we recommend sweater and umbrella. UV protection is sensible on sunny days, even in a mild winter month, and a closed-toe waterproof shoe helps on damp days. For multi-day trips bring thin layers that you can combine through the day.
The first two weeks of October usually offer the best balance in Barcelona: moderate crowds, friendlier prices and weather that remains representative of the month. Late October starts showing features of the transition to the next month. Use our custom historical lookup to check the actual values for the exact year you plan to travel.
Of the twelve months, October is the 5th warmest in Barcelona and the wettest. It collects 75 mm, 16 % of the whole year’s rain, spread over 7.7 days with appreciable precipitation, of which 2.0 exceed 10 mm. The warmest month is August.
Among the 50 Spanish cities with AEMET climatological normals on this site, in October Barcelona is the 24th warmest, with a mean maximum of 21.9 °C, and the 17th wettest. The wettest of them that month is Vigo, with 208 mm against Barcelona’s 75 mm.
Averages hide what can actually happen. At the Barcelona, Port Olímpic observatory, a October has reached 29.0 °C as an absolute maximum and 6.9 °C as a minimum: that is the real range to reckon with, not the 19.1 °C mean. Relative humidity runs around 73 % and mean wind 11.6 km/h.
AEMET climatological normals 1991-2020, Barcelona, Port Olímpic observatory (26 m above sea level). Sources and methodology → · Forecast for Barcelona →
