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    Portugal

    Algarve - Portugal weather in September 2025

    Portugal

    Algarve - Portugal weather in September 2025

     

    Day

    26 °C

     

    Night

    17 °C

     

    Sea

    21 °C

     

    Precipitation

    20 mm

    in month

     

    Rainy days

    2 days

    in month

     

    Daylight

    12 hours

    average

     

    Sunshine

    9 hours

    average

     

    Humidity

    65 %

     

    Day

    26 °C

     

    Night

    17 °C

     

    Sea

    21 °C

     

    Precipitation

    20 mm

    in month

     

    Rainy days

    2 days

    in month

     

    Daylight

    12 hours

    average

     

    Sunshine

    9 hours

    average

     

    Humidity

    65 %

    Overview: Algarve - Portugal

    Looking for a perfect combination of relaxation and adventure? The Algarve is something for you. This beautiful coastal region in southern Portugal offers stunning beaches, crystal-clear waters, and year-round sunshine. Algarve offers a variety of outdoor adventures, including surfing, kayaking or rock climbing and hiking. Explore charming historic towns, such as Lagos and Faro, and indulge in fresh seafood and local wines.

    Travel information

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    in Algarve

    Weather charts for Algarve - Portugal

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    Beach with turquise water in Albufeira on a clear sky day
    Enjoyable beach and lake in Carvoeiro with nice weather and blue sky
    Beach and lake near Lagos at sunset time

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    Weather overview and FAQs

    Weather overview

    In September in Algarve, the average air temperature ranges from 26 °C (80 °F) during the day to 17 °C (63 °F) at night. There are 2 days of rain on average, where the rainfall is 20 mm (0.77 in).

    Are there good conditions to visit in September in Algarve?

    In September in Algarve, there are ideal conditions for a vacation. The daily temperatures in this month reach pleasant 26 °C (80 °F). There are only 2 days of rain in the whole month, so you can leave your umbrella at home. A sea temperature of 21 °C (69 °F) can seem colder to some, but others will call it refreshing. The temperature of 17 °C (63 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.

    What is the temperature in Algarve during the day in September?

    In September in Algarve, the average daily temperatures will be 26 °C (80 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.

    How many days of precipitation on average can I expect in September in Algarve?

    In September in Algarve, we can expect 2 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 0.6 days of the week, or in general - 8 % days.

    What is the sea temperature in Algarve in September?

    In Algarve in September expect the sea to be warm at 21 °C (69 °F). The sea at this temperature is quite cold, but it is already possible to stay in it for a long time and it is pleasantly refreshing on hot, steamy days.

    What is the night temperature in September in Algarve?

    The average night temperature in Algarve in September is 17 °C (63 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.

    How many sunny hours can I expect in September in Algarve?

    There is an average length of sunshine of 9 hours per day in Algarve in September.

    Is the sea in Algarve warmer in September than in October?

    Yes, in Algarve in September the sea temperature is higher by 1 °C (34 °F) compared to October.

    Is there a dry season in September in Algarve?

    Yes, there is a dry season in September in Algarve with just 2 days during the month being rainy.

    Is there a wet season in September in Algarve?

    No, there is no wet season in Algarve in September - you can expect 2 days of rain during the month.

    Is it hot in Algarve in September?

    In September in Algarve, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

    How long is the day (from dawn till dusk) in Algarve in September?

    The length of daylight in Algarve in September is 12 hours.

    Is the weather in Algarve warmer in September than in August?

    No, in September in Algarve the temperature is not higher than in August.

    How humid is Algarve in September?

    Humidity in Algarve in September is 65 %.

    How windy is it in Algarve in September?

    An average wind scale that can be expected in Algarve in September is 3.

    Is Algarve rainier in September than in August?

    Yes, Algarve is a rainier September than in August.

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