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The weather in August in Viseu

It's warm in August in Viseu with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 30°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 Viseu. 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 Viseu, 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 2018, Viseu reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 14°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 28°C.

Rainfall amount

In August, there is an average of 13 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in August for Viseu

Click on any day in August to get detailed info about the usual weather on that day in Viseu. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Viseu New York
Average temperature 28°C 30°C
Max. temperature 30°C 31°C
Min. temperature 14°C -5°C
Total precipitation 13 mm 79 mm
Rainy days 3 days 13 days

Start of August

The month of August starts in Viseu with hot temps, averaging around 29°C during the day and nights around 16°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 Viseu is around 28°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 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 Viseu 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 Viseu, Portugal. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Viseu

Temperature in August in Viseu over the years

Precipitation charts

These charts show the average amount of precipitation in August in Viseu, 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 Viseu

Total precipitation in August in Viseu over the years

Daily UV index in August in Viseu

This chart shows the average daily UV index in August in Viseu, 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 Viseu

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Average weather in Viseu by month

Click on a month below to see detailed weather info for Viseu. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.