December weather forecast
Javouhey, French Guiana

In December, Javouhey's weather conditions begin to shift. This is evidenced by an increase in rainfall to 84mm (3.31"). However, the city continues to enjoy warm temperatures, unlike many parts of the world experiencing winter. The weather is suitable for a range of activities even as the year comes to a close. Javouhey remains a vibrant retreat year-round given its stable and favorable climate.

Temperature

Javouhey, French Guiana, sees the arrival of December with an average high-temperature of a still tropical 30.2°C (86.4°F), indicating a subtle variation from November. During December, Javouhey witnesses a consistent average low-temperature of 22.7°C (72.9°F).

Heat index

The heat index value for December is appraised at a very hot 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Remember that heat index calculations are made for conditions in the shade with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Javouhey, the average relative humidity in December is 83%.

Rainfall

In December, in Javouhey, the rain falls for 21.9 days. Throughout December, 84mm (3.31") of precipitation is accumulated. Throughout the year, in Javouhey, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year in Javouhey.
On the first day of the month, sunrise is at 06:29 and sunset at 18:19. On the last day of December, sunrise is at 06:44 and sunset at 18:32 -03.

Sunshine

In Javouhey, French Guiana, the average sunshine in December is 6.6h.

UV index

The months with the lowest UV index in Javouhey are January through June and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.