Climate averages 1991–2020
Weather in Portugal in September
In September, average daytime highs across the 12 cities listed in Portugal range from 22.9°C in Queluz to 26.3°C in Setúbal. Monthly rainfall ranges from 19 mm in Faro to 79 mm in Braga.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in Portugal
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Lisbon | 24.4°C17.8°C | 17.8°C | 29 | 4.1 |
| Porto | 24.1°C15.7°C | 15.7°C | 64 | 6.6 |
| Braga | 23.8°C13.7°C | 13.7°C | 79 | 6.8 |
| Amadora | 24.3°C17.1°C | 17.1°C | 29 | 4.1 |
| Coimbra | 26.3°C15.0°C | 15.0°C | 49 | 6.0 |
| Leiria | 25.3°C15.7°C | 15.7°C | 41 | 5.6 |
| Setúbal | 26.3°C16.9°C | 16.9°C | 25 | 3.6 |
| Funchal | 24.3°C20.3°C | 20.3°C | 25 | 7.7 |
| Viseu | 24.3°C13.7°C | 13.7°C | 66 | 7.1 |
| Queluz | 22.9°C17.4°C | 17.4°C | 29 | 4.1 |
| Aveiro | 25.1°C15.8°C | 15.8°C | 51 | 6.0 |
| Faro | 24.3°C19.2°C | 19.2°C | 19 | 2.7 |
A rain day is a local calendar day with at least 1 mm of precipitation.