December weather forecast
Anjajavy, Madagascar

December in Anjajavy encapsulates the full-fledged presence of the wet season. This month experiences the second-highest rainfall in the year, accumulates up to 193mm (7.6"). The high humidity from November continues whereas temperatures peak, reminiscent of the year's initial months. The sea temperature return to its initial stage, inviting for marine activities. Despite these changes, the city's allure remains undiminished, offering a unique blend of weather conditions for tourists and locals alike.

Temperature

The shift into December uncovers an average high-temperature of a still tropical 31°C (87.8°F), subtly different from the previous month. Anjajavy's temperature drops to an average low of 24.9°C (76.8°F) during the nights of December.

Heat index

For most parts of December, the heat index is evaluated at a sweltering 39°C (102.2°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In Anjajavy, in December, it is raining for 29.4 days, with typically 193mm (7.6") of accumulated precipitation. Throughout the year, there are 207.2 rainfall days, and 1328mm (52.28") of precipitation is accumulated.

Sea temperature

January through May and December, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:11 and sunset at 18:08. On the last day of December, sunrise is at 05:24 and sunset at 18:24 EAT.

Sunshine

December has the most sunshine of the year, 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 estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 7 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Caution! The mirror effect of sand and water ups the UV radiation strength.