December weather forecast
Bas-Espoir, French Guiana

In December, rainfall increases to 112mm (4.41"), signaling the transition back towards the rainy season in Bas-Espoir. The average high temperature drops to 30.8°C (87.4°F), marking the coolest month of the year. Notably, the number of sunshine days reduces, making it the month with the least exposure to the sun's rays. The frequency of rain starts rising again, indicating a return to the typical climate patterns of the humid tropical weather. Despite this, the allure of Bas-Espoir continues to captivate visitors and dwellers even in December.

Temperature

December brings a minor shift in the average high-temperature in Bas-Espoir, adjusting from 34°C (93.2°F) in November to a still tropical 30.8°C (87.4°F). In December, Bas-Espoir encounters an average low-temperature of 20.9°C (69.6°F) during the night.

Heat index

December's mean heat index is appraised at a blistering 42°C (107.6°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index determinations are made taking into account the shade and light air movements. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In December, the average relative humidity is 85%.

Rainfall

In December, in Bas-Espoir, French Guiana, the rain falls for 26.2 days. Throughout December, 112mm (4.41") of precipitation is accumulated. In Bas-Espoir, during the entire year, the rain falls for 265.5 days and collects up to 1078mm (42.44") of precipitation.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year.
On the first day of December in Bas-Espoir, sunrise is at 06:25 and sunset at 18:21. On the last day of the month, sunrise is at 06:40 and sunset at 18:35 -03.

Sunshine

In December, the average sunshine is 5.6h.

UV index

The months with the lowest UV index are January, March and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 5 transforms into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.