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

Cotonou's August weather reaches an average high of 27.8°C (82°F) and an average low of 23.4°C (74.1°F), making it the coldest month.

Heat index

For most parts of August, the heat index is computed to be a hot 32°C (89.6°F). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In Cotonou, the average relative humidity in August is 82%.

Rainfall

In Cotonou, in August, it is raining for 5 days, with typically 65mm (2.56") of accumulated 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: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

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

Sunshine

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

UV index

February through May, August through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, an average UV index of 12 transforms into the following instructions:
Undertake all key precautions, as unprotected skin and eyes may get burns in no time. 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. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Even on overcast days, apply and frequently reapply a sunscreen with SPF 30 or more, specifically after a swim or outdoor workout. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.