December weather forecastMananjary, Madagascar
December
Weather in December
December in Mananjary brings stable rainy conditions, with rainfall crossing the 100mm (3.94") mark to settle at 107mm (4.21"). This month, with its marked temperature highs and elevated humidity levels, sees weather characteristics akin to the initial wet period. Although an increased cloud cover slightly decreases sunshine exposure, it doesn't overshadow the panoramic beauty of Mananjary's vistas. December winds remain steady, providing a cool relief from the otherwise humid weather. While December brings a healthy dose of rainfall, Mananjary remains a magical destination all year round.Temperature
The transition into December in Mananjary shows a subtle variation to a still moderately hot 28.5°C (83.3°F) from November's 27.1°C (80.8°F) in the average high-temperature. Night temperatures during December in Mananjary stabilize at an average of 24.4°C (75.9°F), closely mirroring the daytime temperatures.Heat index
The heat index value during December is appraised at a hot 33°C (91.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.The standards for the heat index are set for locations in shade and under light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In December, the average relative humidity in Mananjary, Madagascar, is 79%.Rainfall
In Mananjary, during December, the rain falls for 22.1 days and regularly aggregates up to 107mm (4.21") of precipitation. Throughout the year, there are 254.5 rainfall days, and 1408mm (55.43") of precipitation is accumulated.Daylight
December has the longest days of the year in Mananjary, with an average of 13h and 24min of daylight.On the first day of the month, sunrise is at 04:55 and sunset at 18:15. On the last day of December, sunrise is at 05:07 and sunset at 18:31 EAT.
Sunshine
The month with the most sunshine in Mananjary is December, with an average of 10.4h of sunshine.UV index
The months with the highest UV index in Mananjary are January, February, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 7 in December interprets into the following advice:
Shield from overexposure. Defense against sun-related harm is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mananjary, Madagascar
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is January (28.6°C).
The month with the lowest average high temperature is July (22.8°C).
- Average low temperature in December: 24.4°C
The month with the highest average low temperature is January (24.5°C).
The coldest month (with the lowest average low temperature) is July (18.8°C).
Average pressure in December
Mananjary, Madagascar
- Average pressure in December: 1013.5mbar
The month with the highest atmospheric pressure is July (1022.4mbar).
The month with the lowest atmospheric pressure is January (1011.8mbar).
Average wind speed in December
Mananjary, Madagascar
- Average wind speed in December: 13.9km/h
The windiest month (with the highest average wind speed) is October (16.3km/h).
The calmest months (with the lowest average wind speed) are May and June (10.6km/h).
Average humidity in December
Mananjary, Madagascar
- Average humidity in December: 79%
The month with the highest relative humidity is March (82%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in December
Mananjary, Madagascar
- Average rainfall in December: 107mm
The wettest month (with the highest rainfall) is March (254mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in December
Mananjary, Madagascar
- Average rainfall days in December: 22.1 days
The month with the highest number of rainy days is March (27.1 days).
The month with the least rainy days is September (14.3 days).
Average daylight in December /
Average sunshine in December
Mananjary, Madagascar
- Average daylight in December: 13h and 24min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 10h and 24min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Mananjary, Madagascar
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (1.7 days).
Average UV index in December
Mananjary, Madagascar
- Average UV index in December: 7
The months with the highest UV index are January, February, November and December (UV index 7).
The months with the lowest UV index are March, April, May, June, July, August, September and October (UV index 6).
Average cloud cover in December
Mananjary, Madagascar
- Average cloud cover in December: 39
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in December
Mananjary, Madagascar
- Average visibility in December: 10km
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and March (9km).





