Weather in Portugal in September

September in Portugal is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

A country pin in September is a warning: one region of Portugal will not match another. Use a city page if you already know where you are going. Compared with August and January, September sits in the middle of Portugal's year.

Portugal
Average temp
22°C

18–26°C

Rainfall
36 mm

Not much rain

Sunshine
8.5 h

hours per day

What to expect

Daytime

Warm days in Portugal in September. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

Mixed skies in Portugal in September. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.

Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • Sun protection

  • A layer for cooler evenings

Average weather in Portugal

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

Similar weather in September

Other destinations whose September averages sit close to this one.

Check another month

This is the month you are reading. Change either side to look at another.

FAQs about Portugal

Climate averages for Portugal, 1991–2020.

The best time to visit Portugal is between May and October, the most comfortable stretch of the year on these averages.

August is the hottest month, with an average around 24°C.

November is the wettest month, with about 121 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.