August weather forecast and climate
Valhelhas, Portugal

Weather in August

The last month of the summer, August, is another warm month in Valhelhas, Portugal, with average temperature fluctuating between 29.8°C (85.6°F) and 14.2°C (57.6°F).

Temperature

August is the warmest month, with an average high-temperature of 29.8°C (85.6°F) and an average low-temperature of 14.2°C (57.6°F).

Heat index

The average heat index in August is estimated at a hot 30.9°C (87.6°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. 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 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, wind), and activity. 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 particularly important for children. 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 is the least humid month, with an average relative humidity of 51%.

Rainfall

Months with the least rainfall in Valhelhas are July and August Rain falls for 2.5 days and accumulates 7mm (0.28") of rain.

Snowfall

In Valhelhas snow does not fall in May through September.

Daylight

In August, the average length of the day is 13.7h.

Sunshine

Months with the most sunshine in Valhelhas are July and August, with an average of 11.6h of sunshine.

UV index

Months with the highest UV index in Valhelhas, Portugal, are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Valhelhas?

The warmest month in Valhelhas, Portugal, is August, with an average high-temperature of 29.8°C (85.6°F) and an average low-temperature of 14.2°C (57.6°F).

What is the temperature in August in Valhelhas?

In Valhelhas, in August, the average high-temperature is 29.8°C (85.6°F), and the average low-temperature is 14.2°C (57.6°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines air temperature and relative humidity, in August is estimated at 30.9°C (87.6°F).

What is the least humid month in Valhelhas?

The least humid month is August, with an average relative humidity of 51%.

What is the average humidity in August in Valhelhas?

The average relative humidity in August in Valhelhas is 51%.

How much does it rain in Valhelhas in August?

In Valhelhas, in August, it is raining for 2.5 days, with typically 7mm (0.28") of accumulated precipitation.

What is the driest month in Valhelhas?

Months with the least rainfall in Valhelhas, Portugal, are July and August Rain falls for 2.5 days and accumulates 7mm (0.28") of rain.

When it does not snow in Valhelhas?

May through September are months without snowfall in Valhelhas.

How many hours of daylight does Valhelhas have in August?

In August, the average length of the day is 13.7h.

What is the month with the most sunshine in Valhelhas?

July and August, with an average of 11.6h of sunshine, are months with the most sunshine.

How many hours of sunshine does Valhelhas have in August?

In August, the average sunshine in Valhelhas is 11.6h.

What are the months with the highest UV index in Valhelhas?

Months with the highest UV index in Valhelhas are July and August, with an average maximum UV index of 6.

What is the UV index intensity in August in Valhelhas?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in August
Valhelhas, Portugal

Average temperature in August - Valhelhas, Portugal
  • Average high temperature in August: 29.8°C

The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.8°C).

  • Average low temperature in August: 14.2°C

The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

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Average pressure in August
Valhelhas, Portugal

Average pressure in August - Valhelhas, Portugal
  • Average pressure in August: 1016.1mbar

The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in August
Valhelhas, Portugal

Average wind speed in August - Valhelhas, Portugal
  • Average wind speed in August: 8.8km/h

The windiest month (with the highest average wind speed) is February (11.5km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

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Average humidity in August
Valhelhas, Portugal

Average humidity in August - Valhelhas, Portugal
  • Average humidity in August: 51%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (51%).

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Average rainfall in August
Valhelhas, Portugal

Average rainfall in August - Valhelhas, Portugal
  • Average rainfall in August: 7mm

The wettest month (with the highest rainfall) is December (83mm).
The driest months (with the least rainfall) are July and August (7mm).

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Average rainfall days in August
Valhelhas, Portugal

Average rainfall days in August - Valhelhas, Portugal
  • Average rainfall days in August: 2.5 days

The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (2.5 days).

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Average snowfall in August
Valhelhas, Portugal

Average snowfall in August - Valhelhas, Portugal
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (62mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in August
Valhelhas, Portugal

Average snowfall days in August - Valhelhas, Portugal
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.2 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Valhelhas, Portugal

Average daylight in August / Average sunshine in August - Valhelhas, 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: 9.3h).

  • Average sunshine in August: 11.6h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 4.5h).

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Average sunshine days in August
Valhelhas, Portugal

Average sunshine days in August - Valhelhas, Portugal
  • Average sunshine days in August: 27.5 days

The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is April (12.7 days).

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Average UV index in August
Valhelhas, Portugal

Average UV index in August - Valhelhas, Portugal
  • Average UV index in August: 6

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Valhelhas, Portugal

Average cloud cover in August - Valhelhas, Portugal
  • Average cloud cover in August: 12

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in August
Valhelhas, Portugal

Average visibility in August - Valhelhas, Portugal
  • Average visibility in August: 10km

Months with the highest visibility are July and August (10km).
The month with the lowest visibility is January (7km).

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