By the end of the month, temperatures usually drop â¦ The average daytime temperature at the capital of the Algarve, Faro, is 27°C, and the temperature falls to 18°C on average overnight. September is a good time of year to visit the Algarve region for reliably dry sunny weather and warm sea temperatures, minus the intense heat that sometimes characterises the summer months. Weather phenomena recorded in previous years in Northern Spain â Water Temperature in localities in Northern Spain â Weather forecast for Northern Spain in September â. What's the Weather like in Algarve in September. Weather in Northern Spain in September 2020. Portugal in September : Seven-day weather forecast. Take a look at the seven-day weather forecast for the principal cities inPortugal. For each destination, Easyvoyage's weather tool gives you temperature and rainfall indicators, along with wind force and direction and sunrise/sunset times. Most Popular Destinations. To get the accurate Porto weather in September 2020, check the Porto 14 days weather forecast just before September 2020 comes. Weather in the Algarve in September Expect temperatures of around 30 ° C, particularly closer to the beginning of the month. Are you planning a holiday with hopefully nice weather in Portugal in October 2020? As such they are a valid prediction of what to expect for the weather in Lisbon in September 2020. Here is a selection of travel guides: ... Portugal Weather and Climate in November Portugal Weather and Climate in September. North of the River Tejo, in mainland Portugal, along the temperate humid Atlantic coast, winters are usually rainy and summers are mild and dry, becoming hotter the further east you travel. Get the monthly weather forecast for Albufeira, Faro, Portugal, including daily high/low, historical averages, to help you plan ahead. Todayâs and tonightâs Lisbon, Lisboa, Portugal weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account. How about a travel guide, so as not to miss a highlight of any region of Portugal? The weather conditions in Portugal are greatly influenced by the Azores High, a high pressure system that brings nice weather both in winter and summer. Travel guide and advices. The data used in these monthly averages covers a period of over 100 years right up until last year. Read an overview of the climate. Mainland Portugal Weather in September: Hot weather continues into September, with hotter temperatures in the Algarve, and temperatures on the northwest and western coasts being a little lower due to the Atlantic winds. Either way, it is recommended to check the exact weather forecast for Porto before arriving, as the weather forecast becomes more accurate closer to the checked date. Calculations of sunrise and sunset in Lisbon â Portugal for September 2020.