Where to Go for Great Weather
Portugal · Month guide

Portugal in September

Around 26 °C with 42 mm of rain and 8.1 hours of sun a day.

September is a solid shoulder-season month in Portugal. Around 26 °C with 42 mm of rain and 8.1 hours of sun a day. Use the regional grid below to find where this month works best — national averages hide the swings between coast, highlands, and inland.

Plan a trip in September← Portugal year-round
Match verdictMatch: Perfect match. Portugal · September.
Perfect match
Portugal · September
What the weather usually does

Portugal · typical month

  • Day / night
    15 – 26 °C
    Year range 6 – 29 °C
  • Rainfall
    42 mm
    Year range 8 – 118 mm
  • Sunshine
    8.1 hr / day
    Year range 4.1 – 10.5 hr / day
Compare with another destination
What’s open · September

Things to do in Portugal in September

Nothing in Portugal shuts for the season; September runs the full list.

  • Open
    Madeira levada walks

    the irrigation channels run through laurel forest at a near-constant gradient, and they are walkable in every month — winter included, under subtropical skies

    Sources: wildrovertravel.com, wildernesstravel.com

  • Open
    Whale watching in the Azores

    one of very few places on Earth where sperm whales can be seen reliably in any month; tours run all year

    Source: wwhandbook.iwc.int

Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.

20 regions · current month

Portugal, taken apart

Safety · 6 governments

What the governments say about Portugal

Combined advisory · most-cautious-wins
Exercise normal precautions
Highest level across 6 governments · Advisory last changed
See breakdown by country
AU

Exercise normal precautions

Changed Checked www.smartraveller.gov.au
CA

Exercise normal precautions

Changed Checked travel.gc.ca
DE

Exercise normal precautions

Changed Checked www.auswaertiges-amt.de
UK

Exercise normal precautions

Changed Checked www.gov.uk
US

Exercise normal precautions

Changed Checked travel.state.gov
Climate at a glance · 10-year ERA5

A decade of weather, in one page

Temperature°C
Temperature · 12-month climatologyPortugal. Average daytime high by month in °C. Lowest in January (13.0), highest in August (29.2). Monthly means: 13.0, 14.9, 16.0, 18.7, 22.2, 25.2, 28.7, 29.2, 25.7, 22.0, 16.1, 13.7.
— daytime high— overnight low▬ typical range
View data table
MonthAverage daytime high (°C)Average overnight low (°C)Typical lowTypical high
January13.05.60.516.8
February14.96.61.719.6
March16.07.53.621.7
April18.79.55.425.1
May22.211.98.029.8
June25.214.610.632.4
July28.716.413.333.8
August29.216.613.734.7
September25.714.810.931.4
October22.012.98.528.3
November16.19.04.419.8
December13.76.92.116.7
Rainfallmm
Rainfall · 12-month climatologyPortugal. Rainfall by month in mm. Lowest in August (8), highest in November (118). Monthly means: 103, 78, 113, 97, 59, 35, 9, 8, 42, 115, 118, 112.
View data table
MonthRainfall (mm)
January103
February78
March113
April97
May59
June35
July9
August8
September42
October115
November118
December112
Sunshinehr / day
Sunshine · 12-month climatologyPortugal. Sunshine hours by month in hr / day. Lowest in December (4.1), highest in July (10.5). Monthly means: 4.6, 5.7, 6.5, 7.3, 8.6, 9.2, 10.5, 10.1, 8.1, 6.1, 4.6, 4.1.
View data table
MonthSunshine hours (hr / day)
January4.6
February5.7
March6.5
April7.3
May8.6
June9.2
July10.5
August10.1
September8.1
October6.1
November4.6
December4.1
Windkm/h
Wind · 12-month climatologyPortugal. Average wind speed by month in km/h. Lowest in September (10.0), highest in March (12.1). Monthly means: 11.2, 11.1, 12.1, 11.2, 11.2, 11.1, 11.2, 10.8, 10.0, 10.3, 11.2, 11.1.
— average▬ typical range
View data table
MonthAverage wind speed (km/h)Typical lowTypical high
January11.26.020.7
February11.15.921.3
March12.16.821.6
April11.26.817.7
May11.27.116.8
June11.17.315.8
July11.28.215.2
August10.87.415.6
September10.06.415.2
October10.35.919.0
November11.25.818.9
December11.16.119.3
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Heat index

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Humidity

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← Earlier
August

Around 29 °C with 8 mm of rain and 10.1 hours of sun a day.

Later →
October

Around 22 °C with 115 mm of rain and 6.1 hours of sun a day.

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