Porto Weather and Climate: A Comprehensive Guide
Porto has a warm oceanic climate. During summer temperatures can sometimes rise above 40°C, but because of the low humidity it feels pleasant and not to hot. Also the wind coming from the Atlantic ocean brings a cool breeze to the city.
Rain is mostly seen in autumn and winter (October- March). Winter can be very wet with long periods of rain. Spring (April - June) and early autumn (September) is the best time of year to visit Porto.
Average maximum day and minimum night temperature
In Porto, seasonal changes bring about a moderate variation in temperatures. Typically, average maximum daytime temperatures range from a comfortable 25°C in August to a moderate 14°C in the coolest month, January.
Nights are cooler, with lows often dropping to around 8°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Porto has a notably wet climate with abundant precipitation, recording 1213 mm of rainfall per year. The climate in Porto shows significant variation throughout the year. Expect heavy rainfall in November, with an average of 163 mm of precipitation over 15 rainy days. In contrast, July offers drier and sunnier days, with around 22 mm of rainfall over 6 rainy days. For more details, please visit our Porto Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Porto serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.2 hours of sunshine daily, and embrace the darker days in January, offering only 4.1 hours of daily sunlight. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average water temperature
The mean water temperature over the year ranges from 13°C in February to 18°C in August.
Water temperature over the year
Average humidity
The relative humidity is high throughout the year in Porto.
The city experiences its highest humidity in January, reaching 81%. In July, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The average wind speed over the year ranges from 4 m/s to 5 m/s. It is lower in June, July, August, September and October and higher in January, February, March, April, May, November and December.
The mean monthly wind speed over the year (meters per second)
partly cloudy and no rain broken clouds and no rain partly cloudy and no rainForecast for Porto
4 m/s
4 m/s
5 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Porto in Portugal
During the months of May, June, July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in October, November and December.
August has an average maximum temperature of 25°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 14°C.
November tops the wettest month list with 163 mm of rainfall.
July is the driest month with 22 mm of precipitation.
July is the sunniest month with an average of 307 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
