June weather forecast
Cotonou, Benin

The month of June in Cotonou is known for succumbing to a decrease in temperature and daylight duration compared with May. This month still holds a high level of precipitation, albeit less than the record level of May, receiving rainfall largely due to the extended rainy season. It’s worth noting that the UV index diminishes slightly to 11 units this month. Despite the receding daylight hours to 12.5, the days remain reasonably long. The sea temperature decreases to 28°C (82.4°F), denoting cooler conditions than the preceding months.

Temperature

Cotonou's weather in June displays an average high-temperature of a warm 29.2°C (84.6°F), showing minor disparity from May's 31°C (87.8°F). Cotonou records a consistent low-temperature of 23.7°C (74.7°F) during June nights.

Heat index

June's heat index is computed to be a fiery hot 36°C (96.8°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

June is the most humid month in Cotonou, Benin, with an average relative humidity of 84%.

Rainfall

The month with the most rainfall in Cotonou is June, when the rain falls for 15 days and typically aggregates up to 356mm (14.02") of precipitation.

Sea temperature

In Cotonou, in June, the average water temperature is 28°C (82.4°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

With an average of 12h and 30min of daylight, June has the longest days of the year.
On the first day of June in Cotonou, Benin, sunrise is at 06:34 and sunset at 19:02. On the last day of the month, sunrise is at 06:39 and sunset at 19:08 WAT.

Sunshine

The average sunshine in June in Cotonou is 4.7h.

UV index

The average daily maximum UV index in June in Cotonou is 11. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In June, the maximum UV index of 11 suggests these recommendations:
Adopt every vital precaution, unprotected skin and eyes may burn rapidly. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Despite the cloud cover, sunscreen with an SPF of at least 30 should be generously applied and reapplied, particularly after a swim or an outdoor workout. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.