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
September
Weather in September
Temperature
As September takes hold, the average high-temperature is a still hot 31.5°C (88.7°F), nearly mirroring that of the previous month. Throughout the nights in September, an average low-temperature of 24.5°C (76.1°F) is noted.Heat index
During September, the heat index is computed to be a blisteringly hot 41°C (105.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
September and October, with an average relative humidity of 76%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 23mm (0.91") of precipitation.Daylight
The average length of the day in September is 12h and 8min.On the first day of the month, sunrise is at 06:23 and sunset at 18:35. On the last day of September, in Dégrad Blockauss, sunrise is at 06:16 and sunset at 18:21 -03.
Sunshine
With an average of 9.2h of sunshine, September has the most sunshine of the year in Dégrad Blockauss.UV index
June through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 7 during September translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Dégrad Blockauss in September?
What are the least humid months in Dégrad Blockauss?
What is the average humidity in September in Dégrad Blockauss?
What is the driest month in Dégrad Blockauss?
How much does it rain in Dégrad Blockauss in September?
What is the average length of the day in September in Dégrad Blockauss?
When is the sunrise / sunset in September in Dégrad Blockauss?
What month has the most sunshine in Dégrad Blockauss?
How many hours of sunshine does Dégrad Blockauss have in September?
When is the highest UV index in Dégrad Blockauss?
How high is the UV index in September in Dégrad Blockauss?
Average temperature in September
Dégrad Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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 Blockauss, 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).
