September weather forecast
Providence, French Guiana

The first month of the autumn, September, is still a hot month in Providence, French Guiana, with an average temperature fluctuating between 21.1°C (70°F) and 34.3°C (93.7°F).

Temperature

Providence records a slight change with September's average high-temperatures adjusting to a still tropical 34.3°C (93.7°F) from August's 33°C (91.4°F). The nighttime temperature in Providence during September displays a significant divergence from daily peaks, averaging at a pleasant 21.1°C (70°F).

Heat index

In September, the heat index is computed to be a blazing hot 51°C (123.8°F). Mindful: Heat cramps and heat exhaustion are to be expected. Extended physical effort might result in heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Providence, the average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall in Providence. Rain falls for 10.3 days and accumulates 18mm (0.71") of precipitation.

Daylight

In September, the average length of the day is 12h and 8min.
On the first day of the month, sunrise is at 06:31 and sunset at 18:43. On the last day of September, in Providence, sunrise is at 06:24 and sunset at 18:29 -03.

Sunshine

With an average of 9.1h of sunshine, September has the most sunshine of the year.

UV index

The months with the highest UV index in Providence, French Guiana, are July through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.