Porto Weather in September

What's the weather like in Porto, Portugal in September 2020?

The climate in Porto during September can be summarized as warm and reasonably dry.

September is in the fall / autumn in Porto and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 14°C (57°F) is normal.

Porto weather averages (imperial / metric)
Daytime temperature 24.2°C 75.6°F
Nightly temperature 13.8°C 56.8°F
Average temperature 19°C 66.2°F
Daily sunshine 8.1 hrs
Avg rainfall 62 mm 2.4 ins
Rainy days 8 days
Sea temperature 18.5°C 65.3°F
Humidity 75%
Windspeed 13.7kph 9 mph

On average September is the 4th driest month of the year in Porto with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.1 hours of sunshine per day.

September temperatures in Porto

September rainfall

September hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in September 2020.

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Porto weather stats

Porto weather statistics
Hottest month: July 24.8°C 76.6°F
Driest month: July 15mm 0.6ins
Sunniest month: August 10.3hrs
Coldest month: January 13.3°C 55.9°F
Wettest month: December 171mm 6.7ins
Map showing location of Porto (41.14961, -8.61099)

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