December weather forecast
Andriana, Madagascar

December in Andriana records the second-highest rainfall of 230mm (9.06"), marking the peak of the wet season. Despite high rainfall, temperatures in the city continue their upward trend, coupled with high relative humidity - a classic manifestation of a tropical climate. With the highest number of daylight hours in the year, the town continues to be vibrant and welcoming for outdoor pursuits. The sea temperature remains warm and inviting for water activities. Herein, the UV index holds at a modest value, dictating necessary precautions for protection from sunburn, especially during peak daylight hours.

Temperature

December brings an average high-temperature of a still warm 28.7°C (83.7°F) in Andriana, showing a slight difference from November's 28.4°C (83.1°F). December nights in Andriana reflect a consistent temperature dip to a still moderately hot 26°C (78.8°F), a slight descent from daytime peaks.

Heat index

In December, the average heat index is calculated to be a tropical 33°C (91.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in December in Andriana is 76%.

Rainfall

In Andriana, in December, it is raining for 29.6 days, with typically 230mm (9.06") of accumulated precipitation. In Andriana, during the entire year, the rain falls for 284.4 days and collects up to 1623mm (63.9") of precipitation.

Sea temperature

In December, the average sea temperature in Andriana, Madagascar, is 28°C (82.4°F).
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.

Daylight

December has the longest days of the year in Andriana, Madagascar, with an average of 12h and 54min of daylight.
On the first day of the month, sunrise is at 05:10 and sunset at 18:01. On the last day of December, in Andriana, sunrise is at 05:23 and sunset at 18:16 EAT.

Sunshine

With an average of 10.8h of sunshine, December has the most sunshine of the year in Andriana, Madagascar.

UV index

February through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Andriana. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Warning! The Sun's UV rays intensify with reflections from sand and water.