September weather forecast
Sparouine, French Guiana

September, the first month of the autumn in Sparouine, is still a hot month, with an average temperature varying between 32.7°C (90.9°F) and 22.5°C (72.5°F).

Temperature

Entering September, Sparouine's average high-temperature reads a still tropical 32.7°C (90.9°F), indicating a close resemblance to the previous month's climate. Throughout September, an average low-temperature of 22.5°C (72.5°F) is expected in Sparouine.

Heat index

In September, the average heat index is estimated at a blazing hot 47°C (116.6°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of 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. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Sparouine, French Guiana, the average relative humidity in September is 79%.

Rainfall

In Sparouine, in September, it is raining for 11.5 days, with typically 26mm (1.02") of accumulated precipitation. In Sparouine, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.

Daylight

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

Sunshine

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

UV index

The months with the highest UV index in Sparouine 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 exposure to the Sun's UV rays for average individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.