May weather forecast
Ouidah, Benin

May sees a dramatic shift in the city's weather, as rainfall levels surge to 68mm (2.68"). Average temperatures slightly dip, especially the high ones, marking the beginning of a cooling trend. The humidity also peaks during this month, reaching some of the highest levels of the year. Although rainfall is high, the city continues to enjoy a substantial amount of sunlight. This month ushers in the rainy season marked by increased cloud coverage and lesser wind speeds.

Temperature

May's weather displays an average high-temperature of a still tropical 31.5°C (88.7°F), slightly varied from April's 32.1°C (89.8°F). In Ouidah, in May, the average low-temperature is a warm 26.3°C (79.3°F).

Heat index

May's mean heat index is calculated to be a blistering 41°C (105.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Ouidah, the average relative humidity in May is 77%.

Rainfall

In Ouidah, in May, during 19.3 rainfall days, 68mm (2.68") of precipitation is typically accumulated. In Ouidah, during the entire year, the rain falls for 220.8 days and collects up to 678mm (26.69") of precipitation.

Snowfall

In Ouidah, Benin, snow does not fall in January through August, October through December.

Daylight

In May, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 06:38 and sunset at 18:59. On the last day of May, sunrise is at 06:35 and sunset at 19:03 WAT.

Sunshine

The average sunshine in May is 8.8h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In May, a daily maximum UV index of 7 leads to the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.