December weather forecast
Arataï, French Guiana

December brings a touch of winter to Arataï, French Guiana. However, the city remains largely warm with temperatures slightly decreasing from November. The city, characterized by lush greenery, gets a further boost with the increasing rainfall, averaging at 146mm (5.75"). Yet, the daylight hours remain stable, with no significant decrease. Be it craving for the warmth of the sun or enjoying the misty mornings, December in Arataï serves as a great end-of-year travel destination.

Temperature

December marks a gentle change in average high-temperature in Arataï, declining from November's tropical 33°C (91.4°F) to a warm 29.8°C (85.6°F). December nights in Arataï cool down to an average low-temperature of 22°C (71.6°F).

Heat index

The average heat index in December is appraised at a torrid 39°C (102.2°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. 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', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in December in Arataï is 86%.

Rainfall

In December, in Arataï, the rain falls for 25.1 days. Throughout December, 146mm (5.75") of precipitation is accumulated. In Arataï, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year in Arataï.
On the first day of the month, sunrise is at 06:22 and sunset at 18:16. On the last day of December, in Arataï, sunrise is at 06:36 and sunset at 18:30 -03.

Sunshine

The average sunshine in December in Arataï is 5.9h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 6 suggests this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.