December weather forecastTrangahy, Madagascar

December

Weather in December

December, the first month of the summer in Trangahy, is also a hot month, with an average temperature fluctuating between 31.4°C (88.5°F) and 26.3°C (79.3°F).

Temperature

November and December bring Trangahy's highest average temperatures, reaching a high of 31.4°C (88.5°F).

Heat index

The heat index value during December is calculated to be a very hot 39°C (102.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In December, the average relative humidity is 72%.

Rainfall

In Trangahy, in December, it is raining for 20.1 days, with typically 94mm (3.7") of accumulated precipitation. In Trangahy, during the entire year, the rain falls for 161.7 days and collects up to 952mm (37.48") of precipitation.

Daylight

With an average of 13h and 18min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:14 and sunset at 18:26. On the last day of December, sunrise is at 05:27 and sunset at 18:42 EAT.

Sunshine

In Trangahy, the average sunshine in December is 11.4h.

UV index

January through May, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during December translates into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Updated: Jul 22, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

November and December are identified as the warmest months, with an average high-temperature of 31.4°C (88.5°F).

The average high-temperature and low-temperature during December are 31.4°C (88.5°F) and 26.3°C (79.3°F) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 39°C (102.2°F).

The average relative humidity in December is 72%.

In December, the rain falls for 20.1 days. Throughout December, 94mm (3.7") of precipitation is accumulated.

December has the longest days of the year, with an average of 13h and 18min of daylight.

The average day length in December is 13h and 16min.

In December, on the first day of the month, sunrise is at 05:14 and sunset at 18:26. On the last day of the month, sunrise is at 05:27 and sunset at 18:42 EAT.

In Trangahy, the average sunshine duration in December is 11.4h.

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

In Trangahy, the average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe 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

31.4°C

30.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15km/h

12.6km/h

14.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

13.8

7.5

1.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Trangahy, Madagascar

Average high temperature in December: 31.4°C

The warmest months (with the highest average high temperature) are November and December (31.4°C).
The month with the lowest average high temperature is July (27.8°C).

Average low temperature in December: 26.3°C

The month with the highest average low temperature is December (26.3°C).
The coldest month (with the lowest average low temperature) is July (21.5°C).

Average pressure in December
Trangahy, Madagascar

Average pressure in December: 1010.8mbar

The month with the highest atmospheric pressure is July (1018.3mbar).
The month with the lowest atmospheric pressure is January (1009.2mbar).

Average wind speed in December
Trangahy, Madagascar

Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is October (14.2km/h).
The calmest month (with the lowest average wind speed) is March (10.9km/h).

Average humidity in December
Trangahy, Madagascar

Average humidity in December: 72%

The months with the highest relative humidity are January, February and March (78%).
The month with the lowest relative humidity is July (64%).

Average rainfall in December
Trangahy, Madagascar

Average rainfall in December: 94mm

The wettest month (with the highest rainfall) is January (315mm).
The driest months (with the least rainfall) are July and August (4mm).

Average rainfall days in December
Trangahy, Madagascar

Average rainfall days in December: 20.1 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is July (3.7 days).

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

Average daylight in December: 13h and 18min

The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).

Average sunshine in December: 11h and 24min

The month with the most sunshine is October (Average sunshine: 11h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).

Average sunshine days in December
Trangahy, Madagascar

Average sunshine days in December: 7.5 days

The month with the most sunshine days is July (26.9 days).
The month with the least sunshine days is January (1.5 days).

Average UV index in December
Trangahy, 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).

Average cloud cover in December
Trangahy, Madagascar

Average cloud cover in December: 27

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 14).

Average visibility in December
Trangahy, 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).