Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December is the warmest month of the year, registering average temperatures as high as 30.7°C (87.3°F) and as low as 23.4°C (74.1°F).Heat index
The average heat index in December is calculated to be a very hot 37°C (98.6°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Observations indicate that the heat index values are for shady locations with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In Sihanamaro, the average relative humidity in December is 70%.Rainfall
In Sihanamaro, during December, the rain falls for 13.3 days and regularly aggregates up to 40mm (1.57") of precipitation. In Sihanamaro, Madagascar, during the entire year, the rain falls for 116.4 days and collects up to 309mm (12.17") of precipitation.Daylight
December has the longest days of the year, with an average of 13h and 42min of daylight.On the first day of December, sunrise is at 04:58 and sunset at 18:33. On the last day of the month, sunrise is at 05:09 and sunset at 18:50 EAT.
Sunshine
With an average of 10.8h of sunshine, December has the most sunshine of the year.UV index
The months with the highest UV index are January through March and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 7 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
How hot is it in Sihanamaro in December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
How many hours of daylight does Sihanamaro have in December?
What time are sunrise and sunset in December?
What month has the most sunshine?
How long on average sun shines in December?
What is the month with the highest UV index?
What is the UV index intensity in December in Sihanamaro?
Average temperature in December
Sihanamaro, Madagascar
- Average high temperature in December: 30.7°C
The warmest month (with the highest average high temperature) is December (30.7°C).
The month with the lowest average high temperature is July (23.9°C).
- Average low temperature in December: 23.4°C
The month with the highest average low temperature is January (23.8°C).
The coldest month (with the lowest average low temperature) is July (17.3°C).
Average pressure in December
Sihanamaro, Madagascar
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is July (1022.1mbar).
The month with the lowest atmospheric pressure is January (1011mbar).
Average wind speed in December
Sihanamaro, Madagascar
- Average wind speed in December: 17.7km/h
The windiest month (with the highest average wind speed) is February (19.4km/h).
The calmest month (with the lowest average wind speed) is June (15.8km/h).
Average humidity in December
Sihanamaro, Madagascar
- Average humidity in December: 70%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (66%).
Average rainfall in December
Sihanamaro, Madagascar
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is January (61mm).
The driest months (with the least rainfall) are July and September (8mm).
Average rainfall days in December
Sihanamaro, Madagascar
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is January (13.7 days).
The month with the least rainy days is September (5.5 days).
Average daylight in December /
Average sunshine in December
Sihanamaro, Madagascar
- Average daylight in December: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in December: 10h and 5min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is April (Average sunshine: 6h and 36min).
Average sunshine days in December
Sihanamaro, Madagascar
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is January (14.3 days).
Average UV index in December
Sihanamaro, Madagascar
- Average UV index in December: 7
The months with the highest UV index are January, February, March and December (UV index 7).
The month with the lowest UV index is June (UV index 5).
Average cloud cover in December
Sihanamaro, Madagascar
- Average cloud cover in December: 29
The month with the most cloud cover is April (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Sihanamaro, Madagascar
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
