January weather forecast
Polémie, French Guiana

January, like December, in Polémie, French Guiana, is a moderately hot winter month, with an average temperature ranging between min 22.4°C (72.3°F) and max 29.4°C (84.9°F).

Temperature

Polémie experiences an average high-temperature of a warm 29.4°C (84.9°F) in January, subtly different from December's 30.2°C (86.4°F). Polémie's temperature in January lowers to a consistent average of 22.4°C (72.3°F) during the nights.

Heat index

The average heat index in January is calculated to be a torrid 36°C (96.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation 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

In January, the average relative humidity in Polémie, French Guiana, is 82%.

Rainfall

In Polémie, during January, the rain falls for 23.6 days and regularly aggregates up to 54mm (2.13") of precipitation. In Polémie, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.

Daylight

In January, the average length of the day is 11h and 52min.
On the first day of January, sunrise is at 06:43 and sunset at 18:33. On the last day of the month, sunrise is at 06:51 and sunset at 18:45 -03.

Sunshine

In Polémie, the average sunshine in January is 6.3h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index in Polémie, French Guiana. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during January translates into the following guidance:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.