January weather forecast
Sapotille, French Guiana

January, like December, in Sapotille, French Guiana, is another warm winter month, with temperature in the range of an average low of 22.4°C (72.3°F) and an average high of 29.4°C (84.9°F).

Temperature

The onset of January notes an average high-temperature of a warm 29.4°C (84.9°F), subtly shifted from December's 30.2°C (86.4°F). Throughout January nights, Sapotille experiences a consistent temperature average of 22.4°C (72.3°F).

Heat index

For most parts of January, the heat index is appraised at a torrid 36°C (96.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. 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. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in January is 82%.

Rainfall

In January, in Sapotille, French Guiana, the rain falls for 23.6 days. Throughout January, 54mm (2.13") of precipitation is accumulated. Throughout the year, in Sapotille, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Daylight

The average length of the day in January is 11h and 52min.
On the first day of the month, sunrise is at 06:43 and sunset at 18:32. On the last day of January, sunrise is at 06:50 and sunset at 18:44 -03.

Sunshine

In January, the average sunshine is 6.3h.

UV index

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 6 during January translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.