August weather forecast
Casével, Portugal

August, the last month of the summer in Casével, is another tropical month, with temperature in the range of an average high of 34.7°C (94.5°F) and an average low of 17.8°C (64°F).

Temperature

August, recording an average high temperature of 34.7°C (94.5°F) and a low temperature of 17.8°C (64°F), is Casével's warmest month.

Heat index

August's mean heat index is calculated to be a fiery hot 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

With an average relative humidity of 47%, August is the least humid month.

Rainfall

The months with the least rainfall in Casével are July and August Rain falls for 1 days and accumulates 1mm (0.04") of rain.

Daylight

In August, the average length of the day is 13h and 35min.
On the first day of August, sunrise is at 06:36 and sunset at 20:41. On the last day of the month, sunrise is at 07:02 and sunset at 20:03 WEST.

Sunshine

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

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 7 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.