August weather forecast
Guia, Portugal

August in Guia, Portugal, experiences very similar weather conditions to July, making it an equally enjoyable time for summer outdoor activities. A jump to 27.4°C (81.3°F) marks it as the warmest month of the year even though the hours of sunlight begin to decrease slightly. The sea temperature reaches its peak at 21°C (69.8°F), making it a fantastic period for swimming and other water activities. Despite the high UV index of 6, the consistently low rainfall and moderate wind speeds yield pleasant weather conditions overall.

Temperature

With an average high-temperature of 27.4°C (81.3°F) and an average low-temperature of 19.7°C (67.5°F), August is the warmest month.

Heat index

For most parts of August, the heat index is evaluated at 29°C (84.2°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

The least humid month in Guia is August, with an average relative humidity of 64%.

Rainfall

January through June, August through December are months with rainfall. August is the first month it rains in Guia. Throughout August, in the average 0.7 rainfall days, it receives 1mm (0.04") of precipitation. Throughout the year, in Guia, there are 62.4 rainfall days, and 78mm (3.07") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater in Guia are August and September, with an average sea temperature of 21°C (69.8°F).
Note: Swimming is not a pleasurable activity for the majority in water at 21°C (69.8°F). Breathing control gets harder as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

In August, the average length of the day in Guia, Portugal, is 13h and 33min.
On the first day of August, sunrise is at 06:38 and sunset at 20:40. On the last day of the month, sunrise is at 07:03 and sunset at 20:03 WEST.

Sunshine

The average sunshine in August in Guia, Portugal, is 11.6h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. 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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.