September weather forecastBlicade, French Guiana

Weather in September

The September weather in Blicade, French Guiana, maintains the trends observed in August, with a gradual lean towards the October climate. September is characterised by stable temperatures, steady wind, light rainfall, and increased visibility. Rainfall drops drastically to a low 36mm (1.42"), significantly cutting back the water volumes from previous months. Although there is a decline in pressure levels, the weather remains pleasant and conducive for various outdoor activities. As such, the reduced humidity and rainfall of September provide ideal conditions for exploring the city.

Temperature

The dawn of September sees an average high-temperature of a still hot 34.1°C (93.4°F), subtly contrasting with August's 32.8°C (91°F). A striking departure from daytime highs to an average low-temperature of 20.5°C (68.9°F) is witnessed during September.

Heat index

For September, the heat index is estimated at a burning hot 49°C (120.2°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild 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 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 are highly critical for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in September in Blicade is 74%.

Rainfall

In Blicade, 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

In Blicade, French Guiana, the average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 06:29 and sunset at 18:40. On the last day of September, in Blicade, sunrise is at 06:22 and sunset at 18:27 -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 Blicade. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 7 suggests this advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.