December weather forecast
Mahajanga, Madagascar

englishespañol中文
Share

Weather in December

December marks the end of the year with a significant increase in rainfall, reaching 117mm (4.61"). On comparison, it draws a stark contrast with November's conditions, moving the city into a far wetter state. Despite this, Mahajanga remains a destination of interest, with the high temperature and rise in sea temperatures complementing the wet atmosphere. It is a season of reinvigoration for the wildlife and vegetation, painting the city in stunning shades of green as the year comes to a close.

Temperature

December's arrival brings an average high-temperature of a still tropical 31.3°C (88.3°F), slightly deviating from November's 31.7°C (89.1°F). An average nighttime temperature of 25.8°C (78.4°F) is observed during December.

Heat index

Throughout December, the heat index is evaluated at a torrid 39°C (102.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December in Mahajanga is 71%.

Rainfall

In Mahajanga, in December, it is raining for 23.5 days, with typically 117mm (4.61") of accumulated precipitation. In Mahajanga, during the entire year, the rain falls for 161.5 days and collects up to 817mm (32.17") of precipitation.

Sea temperature

In December, the average sea temperature is 29.3°C (84.7°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

The month with the longest days in Mahajanga is December, with an average of 13h and 0min of daylight.
On the first day of the month, sunrise is at 05:14 and sunset at 18:13. On the last day of December, sunrise is at 05:26 and sunset at 18:29 EAT.

Sunshine

In December, the average sunshine is 11.2h.

UV index

January through May, August through December, with an average maximum UV index of 7, are months with the highest UV index in Mahajanga. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be wary! Reflections from sand and water make UV radiation more intense.
[Resources]

Frequently asked questions

How hot is it in Mahajanga in December?

The average high-temperature, in December, in Mahajanga, is 31.3°C (88.3°F), while the average low-temperature is 25.8°C (78.4°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in December is evaluated at 39°C (102.2°F).

What is the average humidity in December in Mahajanga?

The average relative humidity in December in Mahajanga, Madagascar, is 71%.

How much does it rain in Mahajanga in December?

In Mahajanga, in December, it is raining for 23.5 days, with typically 117mm (4.61") of accumulated precipitation.

What is the sea water temperature in December in Mahajanga?

In Mahajanga, Madagascar, the average seawater temperature in December is 29.3°C (84.7°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

When are the longest days in Mahajanga?

The month with the longest days in Mahajanga is December, with an average of 13h and 0min of daylight.

How many hours of daylight does Mahajanga have in December?

The average day length in December in Mahajanga, Madagascar, is 13h and 2min.

What time are sunrise and sunset in December in Mahajanga?

On the first day of December in Mahajanga, Madagascar, sunrise is at 05:14 and sunset at 18:13. On the last day of the month, sunrise is at 05:26 and sunset at 18:29 EAT.

How many hours of sunshine does Mahajanga have in December?

The average sunshine duration in December in Mahajanga is 11.2h.

What are the months with the highest UV index in Mahajanga?

January through May, August through December, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in December in Mahajanga?

In Mahajanga, Madagascar, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in December
Mahajanga, Madagascar

Average temperature in December - Mahajanga, Madagascar
  • Average high temperature in December: 31.3°C

The warmest month (with the highest average high temperature) is November (31.7°C).
The month with the lowest average high temperature is July (28.8°C).

  • Average low temperature in December: 25.8°C

The month with the highest average low temperature is December (25.8°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).

[Resources]

Average pressure in December
Mahajanga, Madagascar

Average pressure in December - Mahajanga, Madagascar
  • Average pressure in December: 1010.8mbar

The month with the highest atmospheric pressure is July (1017.3mbar).
The month with the lowest atmospheric pressure is February (1009.9mbar).

[Resources]

Average wind speed in December
Mahajanga, Madagascar

Average wind speed in December - Mahajanga, Madagascar
  • Average wind speed in December: 11.1km/h

The windiest month (with the highest average wind speed) is July (14.6km/h).
The calmest month (with the lowest average wind speed) is March (10.2km/h).

[Resources]

Average humidity in December
Mahajanga, Madagascar

Average humidity in December - Mahajanga, Madagascar
  • Average humidity in December: 71%

The months with the highest relative humidity are January and February (78%).
The months with the lowest relative humidity are August and September (58%).

[Resources]

Average rainfall in December
Mahajanga, Madagascar

Average rainfall in December - Mahajanga, Madagascar
  • Average rainfall in December: 117mm

The wettest month (with the highest rainfall) is January (254mm).
The driest month (with the least rainfall) is July (2mm).

[Resources]

Average rainfall days in December
Mahajanga, Madagascar

Average rainfall days in December - Mahajanga, Madagascar
  • Average rainfall days in December: 23.5 days

The month with the highest number of rainy days is January (27.6 days).
The month with the least rainy days is July (1.8 days).

[Resources]

Average sea temperature in December
Mahajanga, Madagascar

Average sea temperature in December - Mahajanga, Madagascar
  • Average sea temperature in December: 29.3°C

The best month for swimming (with the highest average sea temperature) is February (29.7°C).
The coldest month (with the lowest average sea temperature) is August (25.8°C).

[Resources]

Average daylight in December /
Average sunshine in December
Mahajanga, Madagascar

Average daylight in December / Average sunshine in December - Mahajanga, Madagascar
  • Average daylight in December: 13h and 0min

The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in December: 11h and 1min

The month with the most sunshine is November (Average sunshine: 11h and 18min).
The months with the least sunshine are April and August (Average sunshine: 7h and 30min).

[Resources]

Average sunshine days in December
Mahajanga, Madagascar

Average sunshine days in December - Mahajanga, Madagascar
  • Average sunshine days in December: 7.2 days

The month with the most sunshine days is July (28.8 days).
The month with the least sunshine days is January (3.3 days).

[Resources]

Average UV index in December
Mahajanga, Madagascar

Average UV index in December - Mahajanga, Madagascar
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 6).

[Resources]

Average cloud cover in December
Mahajanga, Madagascar

Average cloud cover in December - Mahajanga, Madagascar
  • Average cloud cover in December: 31

The month with the most cloud cover is January (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 12).

[Resources]

Average visibility in December
Mahajanga, Madagascar

Average visibility in December - Mahajanga, Madagascar
  • Average visibility in December: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).

[Resources]

Mahajanga, Madagascar

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location