August weather forecastVale, Portugal
August
Weather in August
August, the last month of the summer in Vale, is another warm month, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 14.3°C (57.7°F).Temperature
In Vale, August records the highest average temperatures, peaking at 28.8°C (83.8°F) and reaching a low of 14.3°C (57.7°F).Heat index
The heat index value for August is computed to be a tropical 31°C (87.8°F). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
August is the least humid month in Vale, with an average relative humidity of 62%.Rainfall
In Vale, during August, the rain falls for 3.9 days and regularly aggregates up to 11mm (0.43") of precipitation. In Vale, during the entire year, the rain falls for 127.7 days and collects up to 618mm (24.33") of precipitation.Snowfall
May through October and December are months without snowfall.Daylight
In Vale, the average length of the day in August is 13h and 46min.On the first day of August in Vale, sunrise is at 06:30 and sunset at 20:49. On the last day of the month, sunrise is at 07:00 and sunset at 20:07 WEST.
Sunshine
In August, the average sunshine is 11.2h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In August, the maximum UV index of 6 suggests this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Vale, Portugal
- Average high temperature in August: 28.8°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (12°C).
- Average low temperature in August: 14.3°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).
Average pressure in August
Vale, Portugal
- Average pressure in August: 1016.6mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in August
Vale, Portugal
- Average wind speed in August: 7.3km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).
Average humidity in August
Vale, Portugal
- Average humidity in August: 62%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (62%).
Average rainfall in August
Vale, Portugal
- Average rainfall in August: 11mm
The wettest month (with the highest rainfall) is November (96mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in August
Vale, Portugal
- Average rainfall days in August: 3.9 days
The months with the highest number of rainy days are January and April (14.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in August
Vale, Portugal
- Average snowfall in August: 0mm
The months with the highest snowfall are January and March (2mm).
The months with the least snowfall are May, June, July, August, September, October and December (0mm).
Average snowfall days in August
Vale, Portugal
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January, February and March (0.3 days).
The months with the least snowfall days are May, June, July, August, September, October and December (0 days).
Average daylight in August /
Average sunshine in August
Vale, Portugal
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 11h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in August
Vale, Portugal
- Average sunshine days in August: 25 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in August
Vale, Portugal
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in August
Vale, Portugal
- Average cloud cover in August: 18
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in August
Vale, Portugal
- Average visibility in August: 9km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).





