September weather forecastBita, French Guiana
September
Weather in September
September sees another major climatic shift, as Bita experiences the highest temperature of 33.7°C (92.7°F) for the year. Despite the heat, a drastic reduction in humidity makes the warmth more bearable. The wind speeds increase further, cooling down the warm afternoons. The amount of sunshine reaches its zenith due to lesser clouds in the sky. The smallest monthly rainfall of 21mm (0.83") for the year marks this as the driest month.Temperature
A minimal variation is noted in Bita's average high-temperature at the onset of September, reaching a still tropical 33.7°C (92.7°F) from August's 32.3°C (90.1°F). Bita reports an average nighttime low-temperature of 21.8°C (71.2°F) in September.Heat index
In September, the average heat index is evaluated at a burning hot 49°C (120.2°F). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.Understand that the heat index values take into account shaded locations and mild winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In September, the average relative humidity in Bita is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 21mm (0.83") of precipitation.Daylight
In Bita, the average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 06:24 and sunset at 18:35. On the last day of the month, sunrise is at 06:17 and sunset at 18:22 -03.
Sunshine
With an average of 8.8h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are August through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bita, French Guiana
- Average high temperature in September: 33.7°C
The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure in September
Bita, French Guiana
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Bita, French Guiana
- Average wind speed in September: 6km/h
The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).
Average humidity in September
Bita, French Guiana
- Average humidity in September: 76%
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Bita, French Guiana
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in September
Bita, French Guiana
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).
Average daylight in September /
Average sunshine in September
Bita, French Guiana
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Bita, French Guiana
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).
Average UV index in September
Bita, French Guiana
- Average UV index in September: 7
The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).
Average cloud cover in September
Bita, French Guiana
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).
Average visibility in September
Bita, French Guiana
- Average visibility in September: 7km
The months with the highest visibility are September and October (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (6km).





