Climatological averages, historical records, packing tips and best time to visit Madrid during September. 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 | 42.2 C | July 1995 |
| Heatwave record | 42.1 C | August 2012 |
| All-time low | -10.1 C | January 1971 |
| 24h rainfall | 60 mm | September 1972 |
Official records (AEMET / Met Office / Meteo France). Secondary stations may have more extreme readings.
In September, Madrid typically shows back to school and first convective rains. The average high temperature is around 27°C and the average low around 14°C, with monthly rainfall of 22 mm spread over roughly 4 rain days and about 253 hours of sunshine. Average relative humidity stands at 52% and wind speed averages 10 km/h.
The local calendar in September is shaped by Vuelta a Espana final stage, 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 September, Madrid has recorded both unusually warm spells and cold incursions across recent decades.
For a typical stay we recommend transition: short sleeves and an evening jacket. 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 September usually offer the best balance in Madrid: moderate crowds, friendlier prices and weather that remains representative of the month. Late September 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.
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