October weather forecast
Corossony, French Guiana

October

Weather in October

October, like September, is another hot autumn month in Corossony, French Guiana, with an average temperature ranging between max 30.9°C (87.6°F) and min 25°C (77°F).

Temperature

In Corossony, the months of September and October are known for the peak temperatures, reaching an average high of 30.9°C (87.6°F).

Heat index

The average heat index in October is calculated to be a blistering 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the lowest humidity in Corossony are September and October, with an average relative humidity of 77%.

Rainfall

In Corossony, French Guiana, in October, during 14.3 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Corossony, during the entire year, the rain falls for 288 days and collects up to 1773mm (69.8") of precipitation.

Daylight

The average length of the day in October is 12h and 0min.
On the first day of October in Corossony, sunrise is at 06:19 and sunset at 18:23. On the last day of the month, sunrise is at 06:17 and sunset at 18:13 -03.

Sunshine

In Corossony, French Guiana, the average sunshine in October is 9.2h.

UV index

July through November, with an average maximum UV index of 7, are months with the highest UV index. 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: In October, the maximum UV index of 7 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What are the warmest months in Corossony?
The highest point of temperatures in Corossony, French Guiana, falls in September and October, when the average high-temperature ascends to 30.9°C (87.6°F).
How hot is it in Corossony in October?
The average high-temperature and low-temperature in Corossony, French Guiana, during October are 30.9°C (87.6°F) and 25°C (77°F) respectively. In October, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 40°C (104°F).
What is the least humid month in Corossony?
The months with the lowest humidity in Corossony, French Guiana, are September and October, with an average relative humidity of 77%.
What is the average humidity in October in Corossony?
In Corossony, the average relative humidity in October is 77%.
How much does it rain in Corossony in October?
In Corossony, during October, the rain falls for 14.3 days and regularly aggregates up to 33mm (1.3") of precipitation.
How many hours of daylight does Corossony have in October?
In October, the average day length in Corossony is 12h and 0min.
What time are sunrise and sunset in October in Corossony?
On the first day of October in Corossony, French Guiana, sunrise is at 06:19 and sunset at 18:23. On the last day of the month, sunrise is at 06:17 and sunset at 18:13 -03.
How long on average sun shines in October in Corossony?
The average sunshine duration in October in Corossony, French Guiana, is 9.2h.
When is the highest UV index in Corossony?
The months with the highest UV index are July through November, with an average maximum UV index of 7.
How high is the UV index in October in Corossony?
In Corossony, the average daily maximum UV index in October is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in October
Corossony, French Guiana
  • Average high temperature in October: 30.9°C

The warmest months (with the highest average high temperature) are September and October (30.9°C).
The month with the lowest average high temperature is February (27.5°C).

  • Average low temperature in October: 25°C

The month with the highest average low temperature is November (25.1°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).

Average pressure in October
Corossony, French Guiana
  • Average pressure in October: 1010.6mbar

The months with the highest atmospheric pressure are June and July (1013.1mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).

Average wind speed in October
Corossony, French Guiana
  • Average wind speed in October: 12.6km/h

The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).

Average humidity in October
Corossony, French Guiana
  • Average humidity in October: 77%

The months with the highest relative humidity are February and May (84%).
The months with the lowest relative humidity are September and October (77%).

Average rainfall in October
Corossony, French Guiana
  • Average rainfall in October: 33mm

The wettest month (with the highest rainfall) is May (279mm).
The driest month (with the least rainfall) is September (29mm).

Average rainfall days in October
Corossony, French Guiana
  • Average rainfall days in October: 14.3 days

The month with the highest number of rainy days is May (29.6 days).
The months with the least rainy days are September and October (14.3 days).

Average daylight in October /
Average sunshine in October
Corossony, French Guiana
  • Average daylight in October: 12h and 0min

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 October: 9h and 1min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in October
Corossony, French Guiana
  • Average sunshine days in October: 13.2 days

The month with the most sunshine days is October (13.2 days).
The month with the least sunshine days is May (0.6 days).

Average UV index in October
Corossony, French Guiana
  • Average UV index in October: 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 October
Corossony, French Guiana
  • Average cloud cover in October: 29

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in October
Corossony, French Guiana
  • Average visibility in October: 10km

The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).

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