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 Dosmond transitions from August to September, the average high-temperatures adjust to a still hot 31.5°C (88.7°F), nearly the same as the previous 30.9°C (87.6°F). An average minimum temperature of 24.5°C (76.1°F) is recorded in Dosmond during the month of September.Heat index
During September, the heat index is estimated at a blisteringly hot 41°C (105.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The months with the lowest humidity in Dosmond are September and October, with an average relative humidity of 76%.Rainfall
September is the month with the least rainfall in Dosmond. 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, 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, with an average of 9.2h of sunshine.UV index
The months with the highest UV index in Dosmond, French Guiana, are June through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Dosmond?
What are the least humid months in Dosmond?
What is the average humidity in September in Dosmond?
What is the driest month in Dosmond?
How many days does it rain in September in Dosmond?
What is the average length of the day in September in Dosmond?
What time are sunrise and sunset in September in Dosmond?
What month has the most sunshine in Dosmond?
How long on average sun shines in September in Dosmond?
What is the month with the highest UV index in Dosmond?
How high is the UV index in September in Dosmond?
Average temperature in September
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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
Dosmond, 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).
