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PortugalThe weather in August in Porto
It's warm in August in Porto with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 29°C. At night, you can expect temperatures between 15°C and 18°C.
Looking for great weather? August is a good time to be in Porto. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Porto, Portugal. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 39°C in 2016, Porto reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 17°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 11°C to a highest value of 25°C.
Water temperature
The water temperature at Porto is 20°C this month. Refreshing if you feel like a swim.
Rainfall amount
In August, there is an average of 35 mm of precipitation, spread over 6 days. The wind speed is around 3 Bft, mostly coming from the West.
Daily weather in August for Porto
Click on any day in August to get detailed info about the usual weather on that day in Porto. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Porto | New York | |
|---|---|---|
| Average temperature | 26°C | 30°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 15°C | -5°C |
| Total precipitation | 35 mm | 79 mm |
| Rainy days | 6 days | 13 days |
Start of August
The month of August starts in Porto with hot temps, averaging around 27°C during the day and nights around 17°C.
Mid August
By mid-August, daytime temps stay steady at around 27°C, with nights around 16°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of August
By the end of August, the average daytime temperature in Porto is around 27°C, while nighttime temps are about 17°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Porto for all months and discover the best travel time
Curious about the weather in other parts of Portugal? Check out the climate and weather for spots like Algarve, Lisbon, Albufeira, or explore other destinations in Portugal.
Temperature charts
These charts show the average temperatures in August in Porto, Portugal. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Porto
Temperature in August in Porto over the years
Precipitation charts
These charts show the average amount of precipitation in August in Porto, Portugal. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Porto
Total precipitation in August in Porto over the years
Daily UV index in August in Porto
This chart shows the average daily UV index in August in Porto, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Porto
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Average weather in Porto by month
Click on a month below to see detailed weather info for Porto. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.