PortugalThe weather in August in Rio Douro
It's warm in August in Rio Douro with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 31°C. At night, you can expect temperatures between 14°C and 18°C.
Looking for great weather? August is a good time to be in Rio Douro. The temperatures are nice, and there’s little chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Rio Douro, 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 40°C in 2018, Rio Douro reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 18°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 24°C.
Rainfall amount
In August, there is an average of 11 mm of precipitation, spread over 3 days. The wind speed is around 3 Bft, mostly coming from the West.
Daily weather in August for Rio Douro
Click on any day in August to get detailed info about the usual weather on that day in Rio Douro. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Rio Douro | New York | |
|---|---|---|
| Average temperature | 29°C | 30°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 14°C | -5°C |
| Total precipitation | 11 mm | 79 mm |
| Rainy days | 3 days | 13 days |
Start of August
The month of August starts in Rio Douro with hot temps, averaging around 30°C during the day and nights around 17°C.
Mid August
By mid-August, daytime temps drop to around 28°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 Rio Douro is around 29°C, while nighttime temps are about 16°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
UV index
The UV index is a maximum of 8 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 Rio Douro 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 Rio Douro, Portugal. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Rio Douro
Temperature in August in Rio Douro over the years
Precipitation charts
These charts show the average amount of precipitation in August in Rio Douro, 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 Rio Douro
Total precipitation in August in Rio Douro over the years
Daily UV index in August in Rio Douro
This chart shows the average daily UV index in August in Rio Douro, 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 Rio Douro
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Average weather in Rio Douro by month
Click on a month below to see detailed weather info for Rio Douro. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.