March weather forecast and climate
Cotonou, Benin

March, the first month of the spring, in Cotonou, is still a hot month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 31.9°C (89.4°F).
An excellent water temperature of 29°C (84.2°F) and only 4 rainfall days, with 73.8mm (2.91") of accumulated rainfall, makes March a prime for swimming and other water activities.

Temperature

March is the warmest month, with an average high-temperature of 31.9°C (89.4°F) and an average low-temperature of 25.9°C (78.6°F).

Heat index

The average heat index is calculated to an extremely hot 42.8°C (109°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, clothing, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

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

Rainfall

In Cotonou, during March, the rain falls for 4 days and regularly aggregates up to 73.8mm (2.91") of precipitation. Throughout the year, in Cotonou, Benin, there are 75 rainfall days, and 1308.3mm (51.51") of precipitation is accumulated.

Sea temperature

March through May and November, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Cotonou, Benin.
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in March is 12.1h.

Sunshine

In Cotonou, the average sunshine is 7.2h.

UV index

Months with the highest UV index in Cotonou, Benin, 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 unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 12 in March transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the warmest month in Cotonou?

March is the warmest month, with an average high-temperature of 31.9°C (89.4°F) and an average low-temperature of 25.9°C (78.6°F).

What is the temperature in March in Cotonou?

In March, in Cotonou, the average high-temperature is 31.9°C (89.4°F), and the average low-temperature is 25.9°C (78.6°F). In March, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that combines relative humidity and air temperature, is evaluated at 42.8°C (109°F).

What is the average humidity in March in Cotonou?

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

How much does it rain in Cotonou in March?

In March, in Cotonou, Benin, the rain falls for 4 days. Throughout March, 73.8mm (2.91") of precipitation is accumulated.

What months are the sea warmest in Cotonou?

March through May and November, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.

How warm is the water in March in Cotonou?

In March, the average sea temperature in Cotonou, Benin, is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Cotonou have in March?

In March, the average length of the day in Cotonou, Benin, is 12.1h.

How many hours of sunshine does Cotonou have in March?

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

What are the months with the highest UV index in Cotonou?

Months with the highest UV index in Cotonou, Benin, are February through May, August through October, with an average maximum UV index of 12.

What is the UV index intensity in March in Cotonou?

In Cotonou, Benin, the average daily maximum UV index in March is 12. A UV Index of 11, and more, symbolizes an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in March - Cotonou, Benin
  • Average high temperature in March: 31.9°C

The warmest month (with the highest average high temperature) is March (31.9°C).
The month with the lowest average high temperature is August (27.8°C).

  • Average low temperature in March: 25.9°C

The month with the highest average low temperature is March (25.9°C).
The coldest month (with the lowest average low temperature) is August (23.4°C).

Average humidity in March - Cotonou, Benin
  • Average humidity in March: 77%

The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is April (76.5%).

Average rainfall in March - Cotonou, Benin
  • Average rainfall in March: 73.8mm

The wettest month (with the highest rainfall) is June (356mm).
The driest month (with the least rainfall) is January (9.2mm).

Average rainfall days in March - Cotonou, Benin
  • Average rainfall days in March: 4 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (1 days).

Average sea temperature in March - Cotonou, Benin
  • Average sea temperature in March: 29°C

The best months for swimming (with the highest average sea temperature) are March, April, May and November (29°C).
The coldest month (with the lowest average sea temperature) is August (25°C).

Average daylight in March / Average sunshine in March - Cotonou, Benin
  • Average daylight in March: 12.1h

Months with the longest days are June and July (Average daylight: 12.5h).
Months with the shortest days are January, November and December (Average daylight: 11.8h).

  • Average sunshine in March: 7.2h

The month with the most sunshine is November (Average sunshine: 8.1h).
The month with the least sunshine is July (Average sunshine: 4.4h).

Average UV index in March - Cotonou, Benin
  • Average UV index in March: 12

Months with the highest UV index are February, March, April, May, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).