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
The arrival of December signals a subtle shift in temperature, down from 34°C (93.2°F) in November to a still hot 30.8°C (87.4°F). Throughout December, Grand Carbet's nights cool down to an average of 20.9°C (69.6°F).Heat index
Throughout December, the heat index is evaluated at a blisteringly hot 42°C (107.6°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In Grand Carbet, the average relative humidity in December is 85%.Rainfall
In Grand Carbet, during December, the rain falls for 26.2 days and regularly aggregates up to 112mm (4.41") of precipitation. Throughout the year, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 11h and 54min of daylight.On the first day of the month, sunrise is at 06:26 and sunset at 18:22. On the last day of December, sunrise is at 06:41 and sunset at 18:36 -03.
Sunshine
In Grand Carbet, the average sunshine in December is 5.6h.UV index
The months with the lowest UV index in Grand Carbet are January, March and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 5 during December, leads to the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December in Grand Carbet?
What is the average humidity in December in Grand Carbet?
How much does it rain in Grand Carbet in December?
What is the month with the shortest days in Grand Carbet?
What is the average length of the day in December in Grand Carbet?
When are sunrise and sunset in December in Grand Carbet?
How many hours of sunshine does Grand Carbet have in December?
What are the months with the lowest UV index in Grand Carbet?
How high is the UV index in December in Grand Carbet?
Average temperature in December
Grand Carbet, French Guiana
- Average high temperature in December: 30.8°C
The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.3°C).
- Average low temperature in December: 20.9°C
The month with the highest average low temperature is May (21.9°C).
The coldest months (with the lowest average low temperature) are August and September (20.5°C).
Average pressure in December
Grand Carbet, French Guiana
- Average pressure in December: 1010.7mbar
The months with the highest atmospheric pressure are June and July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in December
Grand Carbet, French Guiana
- Average wind speed in December: 5.1km/h
The windiest months (with the highest average wind speed) are February, March and November (5.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).
Average humidity in December
Grand Carbet, French Guiana
- Average humidity in December: 85%
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Grand Carbet, French Guiana
- Average rainfall in December: 112mm
The wettest month (with the highest rainfall) is May (192mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days in December
Grand Carbet, French Guiana
- Average rainfall days in December: 26.2 days
The months with the highest number of rainy days are January and March (26.8 days).
The month with the least rainy days is October (10.4 days).
Average daylight in December /
Average sunshine in December
Grand Carbet, French Guiana
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 5h and 4min
The months with the most sunshine are September and October (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Grand Carbet, French Guiana
- Average sunshine days in December: 3.7 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (1.8 days).
Average UV index in December
Grand Carbet, French Guiana
- Average UV index in December: 5
The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, March and December (UV index 5).
Average cloud cover in December
Grand Carbet, French Guiana
- Average cloud cover in December: 72
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is October (Cloud cover 44).
Average visibility in December
Grand Carbet, French Guiana
- Average visibility in December: 6km
The month with the highest visibility is October (8km).
The month with the lowest visibility is May (5km).
