September weather forecast
Iracoubo, French Guiana

Iracoubo in September sees a further decrease in rainfall and experiences the most sunshine, being bathed in sun for 9.3 hours every day. September is noted for the least number of rainy days, marking it a dry period. There is a drop in humidity, thereby making the City less muggy. It becomes even windier with an average speed of 12.7km/h (7.9mph), providing a cool atmosphere. Consequently, September promises a balmy, sun-soaked vacation for visitors to Iracoubo, French Guiana.

Temperature

The warmest months are September and October, with an average high-temperature of 30.9°C (87.6°F).

Heat index

September's mean heat index is evaluated at a blistering 40°C (104°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. 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 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

September and October, with an average relative humidity of 77%, are the least humid months.

Rainfall

The month with the least rainfall in Iracoubo is September, when the rain falls for 14.3 days and typically collects 29mm (1.14") of precipitation.

Daylight

In Iracoubo, the average length of the day in September is 12h and 9min.
On the first day of September, sunrise is at 06:26 and sunset at 18:39. On the last day of the month, sunrise is at 06:20 and sunset at 18:24 -03.

Sunshine

The month with the most sunshine is September, with an average of 9.3h of sunshine.

UV index

July through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.