December weather forecast
Mananara Avaratra, Madagascar

December, the last month of the year, returns to a weather pattern similar to that seen at the start of the year. The weather in Mananara Avaratra witnesses a rise in temperatures and rainfall, reflecting January conditions. Nonetheless, it comes with some of the highest sunshine hours and daylight hours of the year. Although the climatic conditions are at their peak, the weather does not deter outdoor activities. Sea temperatures also reach a high, welcoming water lovers for a relaxing dip.

Temperature

The temperature hits its peak in February and December, recording an average high-temperature of 29.8°C (85.6°F).

Heat index

December's average heat index is evaluated at a torrid 37°C (98.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the lowest humidity are November and December, with an average relative humidity of 78%.

Rainfall

In Mananara Avaratra, in December, it is raining for 22.2 days, with typically 100mm (3.94") of accumulated precipitation. In Mananara Avaratra, during the entire year, the rain falls for 273.6 days and collects up to 871mm (34.29") of precipitation.

Sea temperature

In December, the average sea temperature is 28.1°C (82.6°F).
Note: For water activities like swimming, diving, and more, temperatures ranging between 25°C (77°F) and 29°C (84.2°F) offer superior comfort and enjoyment for lengthy durations.

Daylight

With an average of 13h and 6min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 04:59 and sunset at 18:00. On the last day of December, sunrise is at 05:11 and sunset at 18:16 EAT.

Sunshine

In Mananara Avaratra, the average sunshine in December is 10.2h.

UV index

January through March, November and December, with an average maximum UV index of 7, are months with the highest UV index in Mananara Avaratra. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice! The reflection of water and sand increases the UV radiation significantly.