March weather forecast
Cotonou, Benin

March's climate in Cotonou unfolds with a continuation of rising temperatures and a surge in rainfall. Unsurprisingly, it is evident that March records the highest low temperature of 25.9°C (78.6°F) compared to other months. Although the UV index stays at 12 units, the total daylight does see a boost, providing an average of 12.1 hours per day. March presents a significant escalation in the average rainfall, reaching 74mm (2.91"), showcasing a distinctively wet month when juxtaposed with its predecessors. Concluding with a sea temperature of 29°C (84.2°F), March extends relentless warmth and humidity.

Temperature

March, characterized by an average high temperature of 31.9°C (89.4°F) and a low temperature of 25.9°C (78.6°F), is generally the warmest month.

Heat index

Throughout March, the heat index is calculated to be a blisteringly hot 43°C (109.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Cotonou, Benin, the average relative humidity in March is 77%.

Rainfall

In Cotonou, in March, it is raining for 4 days, with typically 74mm (2.91") of accumulated precipitation. In Cotonou, during the entire year, the rain falls for 75 days and collects up to 1308mm (51.5") of precipitation.

Sea temperature

March through May and November, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In Cotonou, the average length of the day in March is 12h and 5min.
On the first day of March, sunrise is at 07:02 and sunset at 19:02. On the last day of the month, sunrise is at 06:49 and sunset at 18:59 WAT.

Sunshine

In Cotonou, the average sunshine in March is 7.2h.

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 ultimate health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 12 during March translates into the following directions:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Despite the clouds, sunscreen with an SPF of at least 30 should be used liberally and reapplied frequently, especially after a swim or outdoor workout. Caution! Sand and water reflections can notably increase the UV radiation intensity.