September weather forecast
Péléa, French Guiana

The first month of the autumn, September, is still a hot month in Péléa, French Guiana, with an average temperature ranging between max 93.4°F and min 68.9°F.

Temperature

Transitioning into September, Péléa records an average high-temperature of a still hot 93.4°F, almost identical to August's 91°F. Péléa in September observes a sharp transition from the daytime heat, falling to an average low of 68.9°F.

Heat index

September's mean heat index is estimated at a life-threatening hot 120.2°F. Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 particularly relevant to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Péléa, during September, the rain falls for 14.3 days and regularly aggregates up to 1.42" of precipitation. Throughout the year, there are 265.5 rainfall days, and 42.44" of precipitation is accumulated.

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 18:41. On the last day of September, sunrise is at 06:23 and sunset at 18:28 -03.

Sunshine

September and October, with an average of 8.8h of sunshine, are months with the most sunshine.

UV index

August through November, with an average maximum UV index of 7, are months with the highest UV index in Péléa. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.