September weather forecast
Eau Blanche, French Guiana

The first month of the autumn, September, is still a hot month in Eau Blanche, French Guiana, with an average temperature ranging between max 32.7°C (90.9°F) and min 22.5°C (72.5°F).

Temperature

As September takes hold, the average high-temperature is a still tropical 32.7°C (90.9°F), nearly mirroring that of the previous month. In the month of September, the temperature in Eau Blanche, French Guiana, generally rests at an average low of 22.5°C (72.5°F).

Heat index

The heat index in September is estimated at a life-threatening hot 47°C (116.6°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Heat index values are typically calculated for conditions of shade and a light breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In September, the average relative humidity in Eau Blanche is 79%.

Rainfall

In Eau Blanche, French Guiana, during September, the rain falls for 11.5 days and regularly aggregates up to 26mm (1.02") of precipitation. In Eau Blanche, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.

Daylight

The average length of the day in September in Eau Blanche, French Guiana, is 12h and 9min.
On the first day of the month, sunrise is at 06:27 and sunset at 18:40. On the last day of September, in Eau Blanche, sunrise is at 06:21 and sunset at 18:25 -03.

Sunshine

The month with the most sunshine is September, with an average of 9.1h of sunshine.

UV index

The months with the highest UV index are July through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.