December weather forecast
Porto Novo, Benin

December marks the peak of the dry season in Porto Novo, as weather conditions turn significantly hotter and drier. The city experiences one of the lowest rainfalls of the year measuring only 7mm (0.28"), whilst temperatures spike to around 33.6°C (92.5°F). This year-end month also sees a significant drop in wind speeds, thereby reducing the relieving effect of the breeze. The city welcomes the new year under these hot and dry conditions, establishing the cyclicity of Porto Novo's climate.

Temperature

December in Porto Novo, Benin, is marked by an average high-temperature of a still hot 33.6°C (92.5°F), almost identical to the preceding month. The low-temperature in Porto Novo averages to a warm 24.4°C (75.9°F) during the nights of December.

Heat index

The heat index value for December is evaluated at a life-threatening hot 45°C (113°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In Porto Novo, the average relative humidity in December is 69%.

Rainfall

December is the month with the least rainfall. Rain falls for 5.3 days and accumulates 7mm (0.28") of precipitation.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:45 and sunset at 18:31. On the last day of the month, sunrise is at 07:00 and sunset at 18:45 WAT.

Sunshine

December has the most sunshine of the year, with an average of 9.6h of sunshine.

UV index

January through May, August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.