What's the weather like in Lisbon in September. In September, the average high-temperature is practically the same as in August - a still warm 24.1°C (75.4°F). Here is a selection of travel guides: On average, the recorded minimum temperature is 72°F. Shoulder (Apr–Jun & Sep–Nov) Wildflowers and mild days are ideal for hikes and outdoor activities. July and August usually see high temperatures, and sometimes a stifling heat. ... Porto, Porto, Portugal Monthly Weather. You will see several days, at … September is a great time to be hanging around the city's miradouros (viewpoints). September Weather on the Azores & Madeira Islands: Average Temperature, Rainfall, Sunshine and Humidity The tables below list the normal September temperatures and rainfall on Portugal… Temperature. Among our chosen destinations (see below), the average temperatures you'll face in September would be between 18.6°C and 26.2°C, with exceptional possible peaks as low as 6°C and high as … This is Portugal before the summer heat and crowds, and the first time in the year that visiting the beach is a viable option. Accommodation prices increase 30%. Expect big crowds in the Algarve and coastal resort areas. Rainfall In Porto, Portugal, during 8 rainfall days, 71.9mm (2.8") of precipitation is typically accumulated. May is lovely in Portugal. Are you planning a holiday with hopefully nice weather to the Algarve in September 2020? The mean September temperature is 72°F (22.2°C), the sea water's 66°F (18.9°C), and the sky is primarily clear. How about a travel guide, so as not to miss a highlight of the southernmost region of continental Portugal? The average temperature still reaches a high of 26°C (that's about 79°F), and never dips any lower than 17°C (about 63°F). The weather in september in Portimao is dry ; it hardly ever rains (0.6in of precipitation over 2 days). Weather in Portugal in May. The northern coast of Portugal is the exception, with milder temperatures in summer. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. The climate quite comfortable there september. Sweltering temperatures are commonplace. Warmer ocean temperatures. Thus, the mean temperature average on this month of september in Portimao is 76°F. In September, the average low-temperature is 14.7°C (58.5°F). In September, weather conditions in Portugal make it a good trip destination. 8:02 am WET Average temperatures across the country are a very pleasant 24°C and, with 14 hours of sunshine per day, you’ll have plenty of time to enjoy the top sights and the beaches. 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