December weather forecastIanakafy, Madagascar

December

Weather in December

The first month of the summer, December, is still a warm month in Ianakafy, Madagascar, with temperature in the range of an average low of 19.7°C (67.5°F) and an average high of 29.7°C (85.5°F).

Temperature

Ianakafy notes an average high-temperature of a warm 29.7°C (85.5°F) in December, displaying minor variation from November. In December, Ianakafy experiences a temperature dip to an average of 19.7°C (67.5°F) at night.

Heat index

The average heat index in December is computed to be a hot 33°C (91.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

In December, the average relative humidity is 65%.

Rainfall

In Ianakafy, in December, during 19.5 rainfall days, 102mm (4.02") of precipitation is typically accumulated. In Ianakafy, during the entire year, the rain falls for 142.5 days and collects up to 647mm (25.47") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:03 and sunset at 18:31. On the last day of December, sunrise is at 05:14 and sunset at 18:47 EAT.

Sunshine

The average sunshine in December is 11.3h.

UV index

The months with the highest UV index are January through March, September through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, an average UV index of 6 transforms into the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Updated: Aug 6, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures vary between a high-temperature of 29.7°C (85.5°F) and a low-temperature of 19.7°C (67.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in December is computed to be 33°C (91.4°F).

In Ianakafy, the average relative humidity in December is 65%.

In Ianakafy, in December, it is raining for 19.5 days, with typically 102mm (4.02") of accumulated precipitation.

The month with the longest days is December, with an average of 13h and 30min of daylight.

In December, the average day length in Ianakafy is 13h and 33min.

In December, on the first day of the month, sunrise is at 05:03 and sunset at 18:31. On the last day of the month, sunrise is at 05:14 and sunset at 18:47 EAT.

The average sunshine duration in December is 11.3h.

The months with the highest UV index are January through March, September through December, with an average maximum UV index of 6.

The average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

30.5°C

29.7°C

27.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.3km/h

11.8km/h

12.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

15.9

10.2

5.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Ianakafy, Madagascar

Average high temperature in December: 29.7°C

The warmest month (with the highest average high temperature) is November (30.5°C).
The month with the lowest average high temperature is July (22.6°C).

Average low temperature in December: 19.7°C

The month with the highest average low temperature is December (19.7°C).
The coldest month (with the lowest average low temperature) is July (11.4°C).

Average pressure in December
Ianakafy, Madagascar

Average pressure in December: 1012mbar

The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is January (1010.8mbar).

Average wind speed in December
Ianakafy, Madagascar

Average wind speed in December: 10.8km/h

The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity in December
Ianakafy, Madagascar

Average humidity in December: 65%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are September and October (51%).

Average rainfall in December
Ianakafy, Madagascar

Average rainfall in December: 102mm

The wettest month (with the highest rainfall) is January (192mm).
The driest months (with the least rainfall) are July and August (2mm).

Average rainfall days in December
Ianakafy, Madagascar

Average rainfall days in December: 19.5 days

The month with the highest number of rainy days is January (24.9 days).
The months with the least rainy days are July and August (2.4 days).

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

Average daylight in December: 13h and 30min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 42min).

Average sunshine in December: 11h and 18min

The month with the most sunshine is November (Average sunshine: 11h and 42min).
The month with the least sunshine is April (Average sunshine: 7h and 18min).

Average sunshine days in December
Ianakafy, Madagascar

Average sunshine days in December: 10.2 days

The month with the most sunshine days is July (27.9 days).
The month with the least sunshine days is January (5.5 days).

Average UV index in December
Ianakafy, Madagascar

Average UV index in December: 6

The months with the highest UV index are January, February, March, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July and August (UV index 5).

Average cloud cover in December
Ianakafy, Madagascar

Average cloud cover in December: 30

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 10).

Average visibility in December
Ianakafy, Madagascar

Average visibility in December: 10km

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