September weather forecast
Ilakana Patatpe, French Guiana

September, the first month of the autumn in Ilakana Patatpe, is still a tropical month, with an average temperature varying between 34.1°C (93.4°F) and 20.5°C (68.9°F).

Temperature

September registers an average high-temperature of a still hot 34.1°C (93.4°F), slightly varied from August's 32.8°C (91°F). Contrary to the day's heat, an average low-temperature of 20.5°C (68.9°F) is recorded during the nights in September.

Heat index

In September, the average heat index is calculated to be a blazing hot 49°C (120.2°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Ilakana Patatpe, French Guiana, in September, during 14.3 rainfall days, 36mm (1.42") 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 September is 12h and 8min.
On the first day of September in Ilakana Patatpe, sunrise is at 06:32 and sunset at 18:41. On the last day of the month, sunrise is at 06:24 and sunset at 18:29 -03.

Sunshine

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

UV index

August through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.