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's onset records a minor alteration in the average high-temperature to a warm 28.8°C (83.8°F) from November's 30.8°C (87.4°F). Le Rallye's nighttime temperature in December consistently rests at 24.5°C (76.1°F).Heat index
During December, the heat index is computed to be a fiery hot 35°C (95°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.One should consider that heat index numbers are for shaded settings and light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In Le Rallye, the average relative humidity in December is 83%.Rainfall
In Le Rallye, in December, during 25.2 rainfall days, 204mm (8.03") of precipitation is typically accumulated. In Le Rallye, during the entire year, the rain falls for 277 days and collects up to 1707mm (67.2") of precipitation.Daylight
With an average of 11h and 54min of daylight, December has the shortest days of the year in Le Rallye.On the first day of the month, sunrise is at 06:23 and sunset at 18:18. On the last day of December, in Le Rallye, French Guiana, sunrise is at 06:38 and sunset at 18:31 -03.
Sunshine
In December, the average sunshine in Le Rallye is 7.3h.UV index
The months with the lowest UV index are January through May and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Le Rallye in December?
What is the average humidity in December in Le Rallye?
How much does it rain in Le Rallye in December?
What is the month with the shortest days in Le Rallye?
What is the average length of the day in December in Le Rallye?
When are sunrise and sunset in December in Le Rallye?
How long on average sun shines in December in Le Rallye?
What are the months with the lowest UV index in Le Rallye?
What is the UV index reading in December in Le Rallye?
Average temperature in December
Le Rallye, French Guiana
- Average high temperature in December: 28.8°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).
- Average low temperature in December: 24.5°C
The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).
Average pressure in December
Le Rallye, French Guiana
- Average pressure in December: 1010.8mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in December
Le Rallye, French Guiana
- Average wind speed in December: 11.7km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).
Average humidity in December
Le Rallye, French Guiana
- Average humidity in December: 83%
The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall in December
Le Rallye, French Guiana
- Average rainfall in December: 204mm
The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in December
Le Rallye, French Guiana
- Average rainfall days in December: 25.2 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).
Average daylight in December /
Average sunshine in December
Le Rallye, French Guiana
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 7h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in December
Le Rallye, French Guiana
- Average sunshine days in December: 4.1 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).
Average UV index in December
Le Rallye, French Guiana
- Average UV index in December: 6
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).
Average cloud cover in December
Le Rallye, French Guiana
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in December
Le Rallye, French Guiana
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, August, September, October and November (10km).
The months with the lowest visibility are April, May, June, July and December (9km).
