Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's arrival registers an average high-temperature of a still tropical 31.5°C (88.7°F), closely aligning with the temperature of the previous month. An average low-temperature of 24.5°C (76.1°F) is common in Dégrad Neuf during the nights of September.Heat index
September's heat index is calculated to be a blisteringly hot 41°C (105.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. 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. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
September and October, with an average relative humidity of 76%, are the least humid months.Rainfall
September is the month with the least rainfall in Dégrad Neuf, French Guiana. Rain falls for 12.2 days and accumulates 23mm (0.91") of precipitation.Daylight
The average length of the day in September is 12h and 8min.On the first day of September in Dégrad Neuf, sunrise is at 06:24 and sunset at 18:36. On the last day of the month, sunrise is at 06:18 and sunset at 18:23 -03.
Sunshine
September has the most sunshine of the year in Dégrad Neuf, with an average of 9.2h of sunshine.UV index
The months with the highest UV index are June through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
How hot is September in Dégrad Neuf?
What are the least humid months in Dégrad Neuf?
What is the average humidity in September in Dégrad Neuf?
What is the driest month in Dégrad Neuf?
How many days does it rain in September in Dégrad Neuf?
How many hours of daylight does Dégrad Neuf have in September?
When is the sunrise / sunset in September in Dégrad Neuf?
What month has the most sunshine in Dégrad Neuf?
How long on average sun shines in September in Dégrad Neuf?
What are the months with the highest UV index in Dégrad Neuf?
What is the UV index reading in September in Dégrad Neuf?
Average temperature in September
Dégrad Neuf, French Guiana
- Average high temperature in September: 31.5°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).
- Average low temperature in September: 24.5°C
The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).
Average pressure in September
Dégrad Neuf, French Guiana
- Average pressure in September: 1012mbar
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
Dégrad Neuf, French Guiana
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).
Average humidity in September
Dégrad Neuf, French Guiana
- Average humidity in September: 76%
The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall in September
Dégrad Neuf, French Guiana
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in September
Dégrad Neuf, French Guiana
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).
Average daylight in September /
Average sunshine in September
Dégrad Neuf, French Guiana
- Average daylight in September: 12h and 1min
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: 9h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Dégrad Neuf, French Guiana
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).
Average UV index in September
Dégrad Neuf, French Guiana
- Average UV index in September: 7
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).
Average cloud cover in September
Dégrad Neuf, French Guiana
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in September
Dégrad Neuf, French Guiana
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, August, September, October and November (10km).
The months with the lowest visibility are April, May, June, July and December (9km).
Dégrad Neuf, French Guiana
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