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 ushering in of September brings an average high-temperature of a still hot 33.7°C (92.7°F), closely mirroring the 32.3°C (90.1°F) of August. In Pierre Hoho, September nights witness a steady temperature drop to a pleasant 21.8°C (71.2°F).Heat index
The heat index in September is evaluated at a life-threatening hot 49°C (120.2°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In Pierre Hoho, 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 Pierre Hoho, French Guiana, is 12h and 8min.On the first day of the month, sunrise is at 06:25 and sunset at 18:36. On the last day of September, sunrise is at 06:18 and sunset at 18:23 -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 Pierre Hoho. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
How hot does it get in Pierre Hoho in September?
What is the average humidity in September in Pierre Hoho?
What is the driest month in Pierre Hoho?
How many days does it rain in September in Pierre Hoho?
What is the average length of the day in September in Pierre Hoho?
What time are sunrise and sunset in September in Pierre Hoho?
What month has the most sunshine in Pierre Hoho?
How long on average sun shines in September in Pierre Hoho?
What is the month with the highest UV index in Pierre Hoho?
What is the UV index intensity in September in Pierre Hoho?
Average temperature in September
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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
Pierre Hoho, 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).
Pierre Hoho, French Guiana
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