Typically, Portugal’s capital experiences mild and sunny conditions during this month. Average temperatures generally range from highs around 25C (77F) to lows of 18C (64F). While the summer’s intense heat begins to subside, the city often enjoys extended periods of sunshine. Rainfall is relatively low in September, making it an attractive time to visit.
Understanding the climatic conditions prevalent in Lisbon during this specific period is invaluable for travelers planning trips. This information allows for effective packing and itinerary planning, maximizing enjoyment of the city’s numerous outdoor attractions and activities. Historical weather data provides a useful framework for anticipating potential conditions, though it’s important to remember that weather patterns can vary. Precise forecasts closer to the date are always recommended.