Climatological averages, historical records, packing tips and best time to visit Barcelona during July. 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 July, Barcelona typically shows sticky heat with tropical nights. The average high temperature is around 29°C and the average low around 20°C, with monthly rainfall of 21 mm spread over roughly 3 rain days and about 304 hours of sunshine. Average relative humidity stands at 70% and wind speed averages 11 km/h.
The local calendar in July is shaped by Grec and Cruilla festivals, 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 July, Barcelona has recorded both unusually warm spells and cold incursions across recent decades.
For a typical stay we recommend natural fibres, portable fan. 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 July usually offer the best balance in Barcelona: moderate crowds, friendlier prices and weather that remains representative of the month. Late July 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, July is the 2nd warmest in Barcelona and the 11th wettest. It collects 25 mm, 5 % of the whole year’s rain, spread over 3.6 days with appreciable precipitation, of which 0.7 exceed 10 mm. The warmest month is August and the wettest is October.
Among the 50 Spanish cities with AEMET climatological normals on this site, in July Barcelona is the 39th warmest, with a mean maximum of 27.0 °C, and the 13th wettest. The wettest of them that month is San Sebastián, with 92 mm against Barcelona’s 25 mm.
Averages hide what can actually happen. At the Barcelona, Port Olímpic observatory, a July has reached 35.9 °C as an absolute maximum and 15.3 °C as a minimum: that is the real range to reckon with, not the 24.7 °C mean. Relative humidity runs around 71 % and mean wind 13.9 km/h.
AEMET climatological normals 1991-2020, Barcelona, Port Olímpic observatory (26 m above sea level). Sources and methodology → · Forecast for Barcelona →
