Transit Desk

Climate

Weather in Portugal in September

Weather in Portugal, September
In September, Portugal sees average highs of 25.8°C (78°F) and lows of 17.2°C (63°F), with around 48 mm of rain. It is one of the best months to visit.

Portugal — September

Portugal September
Daytime high
25.8°C (78°F)
Overnight low
17.2°C (63°F)
Rainfall
48 mm
Best-time rank
Recommended month

How September compares

Portugal, September vs. the annual average (2025)
This month25.8°C (78°F) / 17.2°C (63°F) · 48 mm
Yearly average21.8°C (71°F) / 13.8°C (57°F) · 56 mm

September in Portugal runs 4°C (7.2°F) warmer than the yearly average, and is drier than the yearly average. Pack layers you can adjust through the day — mild conditions.

Common questions

What is the weather like in Portugal in September?

Average highs of 25.8°C (78°F) and lows of 17.2°C (63°F), with around 48 mm of rain.

Is September a good time to visit Portugal?

Yes — September is one of the more comfortable months in Portugal, based on temperature and rainfall.

Updated climate normals, 2025