August weather forecast
Cacheu, Guinea-Bissau

August transitions smoothly from July, mirroring similar weather conditions in Cacheu. The temperatures remain moderately high and steady, with rainfall tapering off to 254mm (10") in August from its July counterpart. The most striking weather pattern this month is the extremely high relative humidity, peaking at 81%, the highest for the year. With limited hours of sunshine and abundant cloud cover, August mostly offers overcast skies. The predominance of rain over sun marks this month as the height of the rainy season.

Temperature

Cacheu's coldest month, August, registers temperatures that range from a high of 29.8°C (85.6°F) to a low of 24.8°C (76.6°F).

Heat index

The heat index value during August is computed to be a sweltering 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The most humid month in Cacheu is August, with an average relative humidity of 81%.

Rainfall

The month with the most rainfall in Cacheu is August, when the rain falls for 27.1 days and typically aggregates up to 254mm (10") of precipitation.

Sea temperature

In August, the average sea temperature in Cacheu, Guinea-Bissau, is 28.3°C (82.9°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The average length of the day in August in Cacheu is 12h and 31min.
On the first day of the month, sunrise is at 06:51 and sunset at 19:30. On the last day of August, in Cacheu, sunrise is at 06:54 and sunset at 19:15 GMT.

Sunshine

The month with the least sunshine in Cacheu is August, with an average of 5.7h of sunshine.

UV index

July and August, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.