December weather forecast
Antonibe, Madagascar

December, the first month of the summer in Antonibe, is still a hot month, with an average temperature fluctuating between 24.9°C (76.8°F) and 31°C (87.8°F).

Temperature

The shift into December finds Antonibe at an average high-temperature of a still hot 31°C (87.8°F), closely comparable to November's conditions. In December, Antonibe experiences an average nighttime temperature of 24.9°C (76.8°F).

Heat index

In December, the heat index is calculated to be a fiery hot 39°C (102.2°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Antonibe, the average relative humidity in December is 75%.

Rainfall

In Antonibe, during December, the rain falls for 29.4 days and regularly aggregates up to 193mm (7.6") of precipitation. In Antonibe, Madagascar, during the entire year, the rain falls for 207.2 days and collects up to 1328mm (52.28") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 0min of daylight.
On the first day of the month, sunrise is at 05:10 and sunset at 18:08. On the last day of December, sunrise is at 05:23 and sunset at 18:23 EAT.

Sunshine

December has the most sunshine of the year, with an average of 10.9h of sunshine.

UV index

January through April, August through December, with an average maximum UV index of 7, are months with the highest UV index in Antonibe. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during December leads to these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.