December weather forecast
Antalaha, Madagascar

The month of December brings Antalaha back to where the weather story started. With an average high of 29.8°C (85.6°F), the city welcomes a full-fledged tropical climate. A notable increase in rainfall, now 100mm (3.94"), comes as a respite from past months. The sea, calm and warm, mirrors the land's temperature, setting the stage for underwater adventures. Thus ends the year with Antalaha beautifully embracing the tropical charm it had started the year with.

Temperature

February and December are identified as the warmest months in Antalaha, with an average high-temperature of 29.8°C (85.6°F).

Heat index

December's mean heat index is evaluated at a torrid 37°C (98.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

November and December, with an average relative humidity of 78%, are the least humid months in Antalaha.

Rainfall

In Antalaha, during December, the rain falls for 22.2 days and regularly aggregates up to 100mm (3.94") of precipitation. In Antalaha, during the entire year, the rain falls for 273.6 days and collects up to 871mm (34.29") of precipitation.

Sea temperature

In Antalaha, Madagascar, in December, the average water temperature is 28°C (82.4°F).
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year.
On the first day of December in Antalaha, sunrise is at 04:59 and sunset at 17:56. On the last day of the month, sunrise is at 05:12 and sunset at 18:11 EAT.

Sunshine

In December, the average sunshine 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. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during December leads to these instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Note! Reflective surfaces like sand and water heighten the UV radiation levels.