December weather forecast
Sihanamaro, Madagascar

December, the first month of the summer in Sihanamaro, is a hot month, with an average temperature fluctuating between 30.7°C (87.3°F) and 23.4°C (74.1°F).

Temperature

In Sihanamaro, temperatures reach their average annual highs in December, measuring 30.7°C (87.3°F) and a minimum average of 23.4°C (74.1°F).

Heat index

The heat index value during December is appraised at a very hot 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Sihanamaro, the average relative humidity in December is 70%.

Rainfall

In Sihanamaro, in December, during 13.3 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, there are 116.4 rainfall days, and 309mm (12.17") of precipitation is accumulated.

Daylight

With an average of 13h and 42min of daylight, December has the longest days of the year.
On the first day of December in Sihanamaro, sunrise is at 04:58 and sunset at 18:33. On the last day of the month, sunrise is at 05:09 and sunset at 18:50 EAT.

Sunshine

December has the most sunshine of the year, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Sihanamaro are January through March and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. 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-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.