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
Mariarano's transition from November to December introduces an average high-temperature of a still hot 31.3°C (88.3°F), marking an insignificant variation from the 31.7°C (89.1°F). Mariarano reports a consistent average low-temperature of 25.8°C (78.4°F) throughout December nights.Heat index
December's heat index is calculated to be a fiery hot 39°C (102.2°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. 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 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for 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.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In December, the average relative humidity is 71%.Rainfall
In Mariarano, in December, during 23.5 rainfall days, 117mm (4.61") of precipitation is typically accumulated. Throughout the year, there are 161.5 rainfall days, and 817mm (32.17") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 13h and 0min of daylight.On the first day of December, sunrise is at 05:12 and sunset at 18:11. On the last day of the month, sunrise is at 05:25 and sunset at 18:27 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. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 7 during December, leads to the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in December?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
How many hours of daylight does Mariarano have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Mariarano have in December?
What is the month with the highest UV index in Mariarano?
How high is the UV index in December?
Average temperature in December
Mariarano, 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).
Average pressure in December
Mariarano, 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).
Average wind speed in December
Mariarano, 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).
Average humidity in December
Mariarano, 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%).
Average rainfall in December
Mariarano, 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).
Average rainfall days in December
Mariarano, 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).
Average daylight in December /
Average sunshine in December
Mariarano, 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).
Average sunshine days in December
Mariarano, 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).
Average UV index in December
Mariarano, 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
Mariarano, 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).
Average visibility in December
Mariarano, 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).
