Average weather for Castelo Branco in August
It's hot in August in Castelo Branco with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 32°C. At night, you can expect temperatures between 16°C and 19°C.
Start of August
The month of August starts in Castelo Branco with hot temps, averaging around 31°C during the day and nights around 19°C. No precipitation expected at the start of the month; it’ll be sunny.
With the temperature difference between day and night, it’s smart to wear layers.
Mid August
By mid-August, daytime temps drop to around 30°C, with nights around 18°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.
Since it cools down at night, it’s a good idea to wear layers.
End of August
By the end of August, the average daytime temperature in Castelo Branco is around 30°C, while nighttime temps are about 18°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
Because temperatures drop in the evening, wearing layers is recommended.
According to weather history, there is only 4,6 mm of precipitation in August. The wind speed is around 3 Bft, mostly coming from the West.
Castelo Branco in August |
New York | ||
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30°C | 30°C | |
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32°C | 31°C | |
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28°C | -5°C | |
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4,6 mm | 79 mm | |
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1 day | 13 days |
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.
Is August a good time to visit Castelo Branco?
August is a good month to be in Castelo Branco for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 40°C in 2018, Castelo Branco reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 21°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 11°C to a highest value of 27°C.
Check out the climate of Castelo Branco 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.
Daily Temperature in August in Castelo Branco
This chart shows the average daily high and low temperatures in August for Castelo Branco, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Castelo Branco
The chart below shows the average daily precipitation in August for Castelo Branco, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 1 day of precipitation in Castelo Branco.
Daily UV index in August in Castelo Branco
This chart shows the average daily UV index in August in Castelo Branco, 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.
Temperature in August in Castelo Branco over the years
This chart shows the average temperature in August in Castelo Branco, measured in degrees Celsius, over the past few years.
Total precipitation in August in Castelo Branco over the years
This chart shows the average precipitation in August in Castelo Branco, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Castelo Branco
Click on any day in August to get detailed info about the usual weather on that day in Castelo Branco. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in August in Castelo Branco
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Average weather in Castelo Branco by month
Click on a month below to see detailed weather info for Castelo Branco. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Castelo Branco for all months at once