December weather forecast
Wempi, French Guiana

December marks the cycle end in Wempi's annual weather pattern. It continues to experience mild temperature drops from the previous months, with daytime temperatures dipping to around 30.8°C (87.4°F). Rainfall rises to a substantial 112mm (4.41") as the city begins to usher in the rainy season once again. The change in weather pattern does not hinder outdoor activities as the city still enjoys some sunshine amidst the showers. The cool breeze from the wind announces the end of the year in the heart of the rainforest.

Temperature

December signifies a gentle decline in Wempi's average high-temperature, easing from 34°C (93.2°F) in November to a still tropical 30.8°C (87.4°F). Wempi sees an average low-temperature of 20.9°C (69.6°F) during December.

Heat index

December's heat index is computed to be a scorching 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Wempi, during December, the rain falls for 26.2 days and regularly aggregates up to 112mm (4.41") of precipitation. In Wempi, during the entire year, the rain falls for 265.5 days and collects up to 1078mm (42.44") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 54min of daylight.
On the first day of the month, sunrise is at 06:26 and sunset at 18:23. On the last day of December, in Wempi, sunrise is at 06:41 and sunset at 18:36 -03.

Sunshine

The average sunshine in December is 5.6h.

UV index

January, March and December, with an average maximum UV index of 5, are months with the lowest UV index in Wempi. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 5 during December leads to these advisories:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.