August weather forecast
Cotonou, Benin

In August, Cotonou experiences a continuation of the cool trend from July and a further decline in rainfall, setting the tone for the remainder of the season. The temperatures gently increase in their low values, whereas the daylight hours reduce to 12.3. The UV index rises marginally to 12 units, implying increased sun exposure during the slightly diminished daylight hours. The cooler sea temperature remains steady at 25°C (77°F), lending a refreshing dip to those seeking refuge from the mid-day sun. Compared to July, August records a lower total rainfall of 65mm (2.56"), thereby featuring slightly drier conditions.

Temperature

In Cotonou, the month of August is known for its lowest average temperatures, reaching a high of 27.8°C (82°F) and a low of 23.4°C (74.1°F).

Heat index

The heat index for August is calculated to be a tropical 32°C (89.6°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. 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. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance 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

The average relative humidity in August is 82%.

Rainfall

In Cotonou, during August, the rain falls for 5 days and regularly aggregates up to 65mm (2.56") of precipitation. Throughout the year, there are 75 rainfall days, and 1308mm (51.5") of precipitation is accumulated.

Sea temperature

The month with the coldest seawater is August, with an average sea temperature of 25°C (77°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

The average length of the day in August is 12h and 19min.
On the first day of August, sunrise is at 06:44 and sunset at 19:08. On the last day of the month, sunrise is at 06:43 and sunset at 18:57 WAT.

Sunshine

In Cotonou, the average sunshine in August is 4.8h.

UV index

The months with the highest UV index are February through May, August through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 12 in August suggests the following recommendations:
Adopt all important safety measures, unprotected skin may burn rapidly. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Be attentive! The UV exposure is heightened with reflections from sand and water.