December weather forecast
Mandritsara, Madagascar

The first month of the summer, December, is still a tropical month in Mandritsara, Madagascar, with an average temperature varying between 31°C (87.8°F) and 24.9°C (76.8°F).

Temperature

December's arrival shows an average high-temperature of a still hot 31°C (87.8°F), hardly different from the previous month. During the nights in December, Mandritsara experiences a consistent average temperature of 24.9°C (76.8°F).

Heat index

The heat index value for December is evaluated at a fiery hot 39°C (102.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 are highly critical to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In Mandritsara, during December, the rain falls for 29.4 days and regularly aggregates up to 193mm (7.6") of precipitation. Throughout the year, there are 207.2 rainfall days, and 1328mm (52.28") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 6min of daylight.
On the first day of December, sunrise is at 05:03 and sunset at 18:03. On the last day of the month, sunrise is at 05:16 and sunset at 18:19 EAT.

Sunshine

The month with the most sunshine is December, with an average of 10.9h of sunshine.

UV index

The months with the highest UV index are January through April, August through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.