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 commencement of September brings an average high-temperature of a still tropical 32.7°C (90.9°F), marking an inconsequential divergence from August. Dégrad Dimanche, during September nights, observes an average temperature of 22.5°C (72.5°F).Heat index
For September, the heat index is computed to be a life-threatening hot 47°C (116.6°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.Note that heat index values are valued for light wind and location in the shade. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Dégrad Dimanche, the average relative humidity in September is 79%.Rainfall
In September, in Dégrad Dimanche, the rain falls for 11.5 days. Throughout September, 26mm (1.02") of precipitation is accumulated. Throughout the year, in Dégrad Dimanche, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 8min.On the first day of September, sunrise is at 06:27 and sunset at 18:40. On the last day of the month, sunrise is at 06:21 and sunset at 18:26 -03.
Sunshine
The month with the most sunshine in Dégrad Dimanche is September, with an average of 9.1h of sunshine.UV index
July through November, with an average maximum UV index of 7, are months with the highest UV index in Dégrad Dimanche. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
How hot is it in Dégrad Dimanche in September?
What is the average humidity in September in Dégrad Dimanche?
How many days does it rain in September in Dégrad Dimanche?
How many hours of daylight does Dégrad Dimanche have in September?
When is the sunrise / sunset in September in Dégrad Dimanche?
What month has the most sunshine in Dégrad Dimanche?
How many hours of sunshine does Dégrad Dimanche have in September?
When is the highest UV index in Dégrad Dimanche?
How high is the UV index in September in Dégrad Dimanche?
Average temperature in September
Dégrad Dimanche, French Guiana
- Average high temperature in September: 32.7°C
The warmest month (with the highest average high temperature) is October (33.1°C).
The month with the lowest average high temperature is February (29.1°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).
Average pressure in September
Dégrad Dimanche, French Guiana
- Average pressure in September: 1011.6mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in September
Dégrad Dimanche, French Guiana
- Average wind speed in September: 7.7km/h
The windiest months (with the highest average wind speed) are February and March (9.5km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).
Average humidity in September
Dégrad Dimanche, French Guiana
- Average humidity in September: 79%
The month with the highest relative humidity is June (88%).
The month with the lowest relative humidity is October (77%).
Average rainfall in September
Dégrad Dimanche, French Guiana
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is May (137mm).
The driest month (with the least rainfall) is October (23mm).
Average rainfall days in September
Dégrad Dimanche, French Guiana
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is September (11.5 days).
Average daylight in September /
Average sunshine in September
Dégrad Dimanche, 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 48min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Dégrad Dimanche, French Guiana
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is May (1.8 days).
Average UV index in September
Dégrad Dimanche, French Guiana
- Average UV index in September: 7
The months with the highest UV index are July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover in September
Dégrad Dimanche, French Guiana
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Dégrad Dimanche, French Guiana
- Average visibility in September: 8km
The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July and August (7km).
Dégrad Dimanche, French Guiana
Weather forecast for your location
2. Allow the app to use your location
