August weather forecast and climate
Ribeira de Alte, Portugal

Weather in August

The last month of the summer, August, is also a moderately hot month in Ribeira de Alte, Portugal, with temperature in the range of an average low of 19.7°C (67.5°F) and an average high of 28°C (82.4°F).

Temperature

August is the warmest month, with an average high-temperature of 28°C (82.4°F) and an average low-temperature of 19.7°C (67.5°F).

Heat index

The average heat index is calculated to 29.7°C (85.5°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, clothing, 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 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

With an average relative humidity of 62%, August is the least humid month.

Rainfall

Months with rainfall are January through June, August through December. August is the first month it rains. Throughout August, in the average 0.5 rainfall days, it receives 1mm (0.04") of precipitation. In Ribeira de Alte, during the entire year, the rain falls for 45.8 days and collects up to 63mm (2.48") of precipitation.

Daylight

The average length of the day in August is 13.5h.

Sunshine

In August, the average sunshine in Ribeira de Alte is 11.6h.

UV index

May through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard 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. 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. 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 Ribeira de Alte?

With an average high-temperature of 28°C (82.4°F) and an average low-temperature of 19.7°C (67.5°F), August is the warmest month in Ribeira de Alte, Portugal.

What is the temperature in August in Ribeira de Alte?

The average high-temperature, in August, in Ribeira de Alte, is 28°C (82.4°F), while the average low-temperature is 19.7°C (67.5°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in August is appraised at 29.7°C (85.5°F).

What is the least humid month in Ribeira de Alte?

The least humid month in Ribeira de Alte is August, with an average relative humidity of 62%.

What is the average humidity in August in Ribeira de Alte?

The average relative humidity in August in Ribeira de Alte is 62%.

When does it start raining in Ribeira de Alte?

August is the first month it rains. Throughout August, in the average 0.5 rainfall days, it receives 1mm (0.04") of precipitation.

How many hours of daylight does Ribeira de Alte have in August?

In August, the average length of the day in Ribeira de Alte is 13.5h.

How long on average sun shines in August in Ribeira de Alte?

In August, the average sunshine is 11.6h.

What are the months with the highest UV index in Ribeira de Alte?

May through September, with an average maximum UV index of 6, are months with the highest UV index in Ribeira de Alte, Portugal.

What is the UV index intensity in August in Ribeira de Alte?

In Ribeira de Alte, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in August
Ribeira de Alte, Portugal

Average temperature in August - Ribeira de Alte, Portugal
  • Average high temperature in August: 28°C

The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (14.9°C).

  • Average low temperature in August: 19.7°C

The month with the highest average low temperature is August (19.7°C).
The coldest month (with the lowest average low temperature) is February (10.2°C).

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Average pressure in August
Ribeira de Alte, Portugal

Average pressure in August - Ribeira de Alte, Portugal
  • Average pressure in August: 1015.8mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

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Average wind speed in August
Ribeira de Alte, Portugal

Average wind speed in August - Ribeira de Alte, Portugal
  • Average wind speed in August: 13.7km/h

The windiest months (with the highest average wind speed) are February and March (17.5km/h).
The calmest month (with the lowest average wind speed) is September (12.2km/h).

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Average humidity in August
Ribeira de Alte, Portugal

Average humidity in August - Ribeira de Alte, Portugal
  • Average humidity in August: 62%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in August
Ribeira de Alte, Portugal

Average rainfall in August - Ribeira de Alte, Portugal
  • Average rainfall in August: 1mm

The wettest month (with the highest rainfall) is November (13mm).
The driest month (with the least rainfall) is July (0mm).

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Average rainfall days in August
Ribeira de Alte, Portugal

Average rainfall days in August - Ribeira de Alte, Portugal
  • Average rainfall days in August: 0.5 days

The month with the highest number of rainy days is April (7.5 days).
The month with the least rainy days is August (0.5 days).

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Average daylight in August /
Average sunshine in August
Ribeira de Alte, Portugal

Average daylight in August / Average sunshine in August - Ribeira de Alte, Portugal
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 11.6h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 6.1h).

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Average sunshine days in August
Ribeira de Alte, Portugal

Average sunshine days in August - Ribeira de Alte, Portugal
  • Average sunshine days in August: 29.8 days

Months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is April (20 days).

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Average UV index in August
Ribeira de Alte, Portugal

Average UV index in August - Ribeira de Alte, Portugal
  • Average UV index in August: 6

Months with the highest UV index are May, June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in August
Ribeira de Alte, Portugal

Average cloud cover in August - Ribeira de Alte, Portugal
  • Average cloud cover in August: 6

The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 5).

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Average visibility in August
Ribeira de Alte, Portugal

Average visibility in August - Ribeira de Alte, Portugal
  • Average visibility in August: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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