September weather forecast
Carbets, French Guiana

September, the first month of the autumn in Carbets, is still a hot month, with an average temperature ranging between min 20.5°C (68.9°F) and max 34.1°C (93.4°F).

Temperature

The onset of September brings with it an average high-temperature of a still tropical 34.1°C (93.4°F), showing a negligible variation from the month before. Carbets sees a large disparity in day to night temperatures in September, with the night temperature dropping to an average of 20.5°C (68.9°F).

Heat index

The heat index in September is estimated at a burning hot 49°C (120.2°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Carbets, in September, it is raining for 14.3 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, in Carbets, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.

Daylight

In Carbets, the average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 06:29 and sunset at 18:40. On the last day of the month, sunrise is at 06:22 and sunset at 18:27 -03.

Sunshine

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

UV index

The months with the highest UV index are August through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.