December weather forecast
Saï, French Guiana

December, the first month of the winter in Saï, is also a hot month, with an average temperature fluctuating between 30.8°C (87.4°F) and 20.9°C (69.6°F).

Temperature

December ushers in a minor alteration in Saï's climate, with the average high-temperature moving from November's 34°C (93.2°F) to a still tropical 30.8°C (87.4°F). Throughout December, Saï witnesses a consistent average low-temperature of 20.9°C (69.6°F).

Heat index

The heat index in December is appraised at a blisteringly hot 42°C (107.6°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. 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', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December is 85%.

Rainfall

In Saï, in December, during 26.2 rainfall days, 112mm (4.41") of precipitation is typically accumulated. In Saï, 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 in Saï, French Guiana, is December, with an average of 11h and 54min of daylight.
On the first day of December in Saï, sunrise is at 06:23 and sunset at 18:20. On the last day of the month, sunrise is at 06:38 and sunset at 18:34 -03.

Sunshine

In Saï, 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. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 5 in December translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.