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
The arrival of September brings an average high-temperature of a still tropical 33.7°C (92.7°F), subtly diverging from August's 32.3°C (90.1°F). Parcours Noir records a mean low-temperature of 21.8°C (71.2°F) in September.Heat index
Throughout September, the heat index is estimated at a burning hot 49°C (120.2°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. 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. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Parcours Noir, the average relative humidity in September 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
The average length of the day in September in Parcours Noir is 12h and 8min.On the first day of the month, sunrise is at 06:22 and sunset at 18:33. On the last day of September, sunrise is at 06:15 and sunset at 18:20 -03.
Sunshine
The month with the most sunshine is September, with an average of 8.8h of sunshine.UV index
August through October, with an average maximum UV index of 7, are months with the highest UV index in Parcours Noir. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot does it get in Parcours Noir in September?
What is the average humidity in September in Parcours Noir?
What is the driest month in Parcours Noir?
How much does it rain in Parcours Noir in September?
What is the average length of the day in September in Parcours Noir?
What time are sunrise and sunset in September in Parcours Noir?
What month has the most sunshine in Parcours Noir?
How long on average sun shines in September in Parcours Noir?
What are the months with the highest UV index in Parcours Noir?
How high is the UV index in September in Parcours Noir?
Average temperature in September
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, French Guiana
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 5min
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
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, 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
Parcours Noir, 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).
Parcours Noir, French Guiana
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