January weather forecast
Saï, French Guiana

January, the same as December, is a moderately hot winter month in Saï, French Guiana, with an average temperature fluctuating between 29.7°C (85.5°F) and 20.8°C (69.4°F).

Temperature

The advent of January sees the average high-temperature at a warm 29.7°C (85.5°F), subtly shifted from December's 30.8°C (87.4°F). Saï's nighttime temperature in January falls to an average of 20.8°C (69.4°F).

Heat index

January's heat index is appraised at a fiery hot 39°C (102.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index determinations are made taking into account the shade and light air movements. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Saï, the average relative humidity in January is 87%.

Rainfall

In Saï, French Guiana, in January, during 26.8 rainfall days, 86mm (3.39") of precipitation is typically accumulated. Throughout the year, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.

Daylight

The average length of the day in January in Saï is 11h and 57min.
On the first day of January, sunrise is at 06:38 and sunset at 18:34. On the last day of the month, sunrise is at 06:46 and sunset at 18:45 -03.

Sunshine

The average sunshine in January is 4.9h.

UV index

January, March and December, with an average maximum UV index of 5, are months with the lowest UV index in Saï. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 during January translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. It's recommended to limit sun exposure when its radiation is at its peak during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.