September weather forecast
Sania, French Guiana

The first month of the autumn, September, is also a hot month in Sania, French Guiana, with an average temperature ranging between min 22.5°C (72.5°F) and max 32.7°C (90.9°F).

Temperature

During September, Sania observes a subtle ascent to a still tropical 32.7°C (90.9°F) from August's 32°C (89.6°F) in the average high-temperature. Sania records a mean low-temperature of 22.5°C (72.5°F) in September.

Heat index

Throughout September, the heat index is calculated to be a blazing hot 47°C (116.6°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Sania, the average relative humidity in September is 79%.

Rainfall

In Sania, in September, during 11.5 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Sania, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Daylight

In September, the average length of the day in Sania is 12h and 9min.
On the first day of September, sunrise is at 06:30 and sunset at 18:43. On the last day of the month, sunrise is at 06:24 and sunset at 18:29 -03.

Sunshine

September has the most sunshine of the year in Sania, with an average of 9.1h of sunshine.

UV index

The months with the highest UV index are July through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.