August weather forecast and climate
Vale das Velhas, Portugal

Weather in August

The last month of the summer, August, is another warm month in Vale das Velhas, Portugal, with average temperature ranging between max 27.7°C (81.9°F) and min 14.9°C (58.8°F).

Temperature

August is the warmest month, with an average high-temperature of 27.7°C (81.9°F) and an average low-temperature of 14.9°C (58.8°F).

Heat index

The average heat index is evaluated at 29.9°C (85.8°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, metabolic differences, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

August and September, with an average relative humidity of 68%, are the least humid months.

Rainfall

In Vale das Velhas, during August, the rain falls for 1.9 days and regularly aggregates up to 3mm (0.12") of precipitation. In Vale das Velhas, Portugal, during the entire year, the rain falls for 79 days and collects up to 141mm (5.55") of precipitation.

Daylight

In Vale das Velhas, the average length of the day in August is 13.7h.

Sunshine

In August, the average sunshine is 10.9h.

UV index

With an average maximum UV index of 6, August is the month with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Vale das Velhas?

With an average high-temperature of 27.7°C (81.9°F) and an average low-temperature of 14.9°C (58.8°F), August is the warmest month in Vale das Velhas, Portugal.

What is the temperature in August in Vale das Velhas?

In Vale das Velhas, in August, the average high-temperature is 27.7°C (81.9°F), and the average low-temperature is 14.9°C (58.8°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), that combines air temperature and relative humidity, is estimated at 29.9°C (85.8°F).

What is the least humid month in Vale das Velhas?

August and September, with an average relative humidity of 68%, are the least humid months in Vale das Velhas.

What is the average humidity in August in Vale das Velhas?

In Vale das Velhas, Portugal, the average relative humidity in August is 68%.

How much does it rain in Vale das Velhas in August?

In Vale das Velhas, during August, the rain falls for 1.9 days and regularly aggregates up to 3mm (0.12") of precipitation.

What is the average length of the day in August in Vale das Velhas?

In August, the average length of the day in Vale das Velhas, Portugal, is 13.7h.

How long on average sun shines in August in Vale das Velhas?

The average sunshine in August in Vale das Velhas is 10.9h.

When is the highest UV index in Vale das Velhas?

With an average maximum UV index of 6, August is the month with the highest UV index.

How high is the UV index in August in Vale das Velhas?

In Vale das Velhas, Portugal, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in August
Vale das Velhas, Portugal

Average temperature in August - Vale das Velhas, Portugal
  • Average high temperature in August: 27.7°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (13.4°C).

  • Average low temperature in August: 14.9°C

The month with the highest average low temperature is July (15°C).
The coldest months (with the lowest average low temperature) are January and February (6.7°C).

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Average pressure in August
Vale das Velhas, Portugal

Average pressure in August - Vale das Velhas, Portugal
  • Average pressure in August: 1016.4mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in August
Vale das Velhas, Portugal

Average wind speed in August - Vale das Velhas, Portugal
  • Average wind speed in August: 10.6km/h

The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).

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Average humidity in August
Vale das Velhas, Portugal

Average humidity in August - Vale das Velhas, Portugal
  • Average humidity in August: 68%

The month with the highest relative humidity is January (82%).
Months with the lowest relative humidity are August and September (68%).

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Average rainfall in August
Vale das Velhas, Portugal

Average rainfall in August - Vale das Velhas, Portugal
  • Average rainfall in August: 3mm

The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is July (2mm).

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Average rainfall days in August
Vale das Velhas, Portugal

Average rainfall days in August - Vale das Velhas, Portugal
  • Average rainfall days in August: 1.9 days

The month with the highest number of rainy days is April (11.3 days).
The month with the least rainy days is August (1.9 days).

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Average daylight in August /
Average sunshine in August
Vale das Velhas, Portugal

Average daylight in August / Average sunshine in August - Vale das Velhas, Portugal
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 10.9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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Average sunshine days in August
Vale das Velhas, Portugal

Average sunshine days in August - Vale das Velhas, Portugal
  • Average sunshine days in August: 27.4 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (16.2 days).

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Average UV index in August
Vale das Velhas, Portugal

Average UV index in August - Vale das Velhas, Portugal
  • Average UV index in August: 6

The month with the highest UV index is August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in August
Vale das Velhas, Portugal

Average cloud cover in August - Vale das Velhas, Portugal
  • Average cloud cover in August: 22

The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in August
Vale das Velhas, Portugal

Average visibility in August - Vale das Velhas, Portugal
  • Average visibility in August: 8km

Months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
Months with the lowest visibility are July and August (8km).

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