October weather forecast
Sursaut, French Guiana

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Weather in October

October, like September, is another tropical autumn month in Sursaut, French Guiana, with an average temperature varying between 25°C (77°F) and 30.9°C (87.6°F).

Temperature

September and October bring Sursaut's highest average temperatures, reaching a high of 30.9°C (87.6°F).

Heat index

October's average heat index is estimated at a blistering 40°C (104°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

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

Rainfall

In October, the rain falls for 14.3 days. Throughout October, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 288 rainfall days, and 1773mm (69.8") of precipitation is accumulated.

Daylight

In October, the average length of the day in Sursaut is 12h and 1min.
On the first day of October, sunrise is at 06:19 and sunset at 18:24. On the last day of the month, sunrise is at 06:17 and sunset at 18:14 -03.

Sunshine

In Sursaut, 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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in October converts into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the warmest month in Sursaut?

During September and October, Sursaut registers its highest temperatures, averaging a high of 30.9°C (87.6°F).

How hot does it get in Sursaut in October?

October temperatures in Sursaut, French Guiana, vary between a high-temperature of 30.9°C (87.6°F) and a low-temperature of 25°C (77°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in October is estimated at 40°C (104°F).

What is the least humid month in Sursaut?

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

What is the average humidity in October in Sursaut?

In October, the average relative humidity is 77%.

How many days does it rain in October in Sursaut?

In Sursaut, 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 Sursaut have in October?

The average day length in October in Sursaut, French Guiana, is 12h and 1min.

What time are sunrise and sunset in October in Sursaut?

In October, on the first day of the month, sunrise is at 06:19 and sunset at 18:24. On the last day of the month, sunrise is at 06:17 and sunset at 18:14 -03.

How long on average sun shines in October in Sursaut?

In Sursaut, the average sunshine duration in October is 9.2h.

When is the highest UV index in Sursaut?

July through November, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in October in Sursaut?

In Sursaut, French Guiana, the average daily maximum UV index in October is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in October
Sursaut, French Guiana

Average temperature in October - Sursaut, 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).

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Average pressure in October
Sursaut, French Guiana

Average pressure in October - Sursaut, 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).

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Average wind speed in October
Sursaut, French Guiana

Average wind speed in October - Sursaut, 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).

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Average humidity in October
Sursaut, French Guiana

Average humidity in October - Sursaut, 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%).

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Average rainfall in October
Sursaut, French Guiana

Average rainfall in October - Sursaut, 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).

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Average rainfall days in October
Sursaut, French Guiana

Average rainfall days in October - Sursaut, 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).

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Average daylight in October /
Average sunshine in October
Sursaut, French Guiana

Average daylight in October / Average sunshine in October - Sursaut, 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).

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Average sunshine days in October
Sursaut, French Guiana

Average sunshine days in October - Sursaut, 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).

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Average UV index in October
Sursaut, French Guiana

Average UV index in October - Sursaut, 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).

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Average cloud cover in October
Sursaut, French Guiana

Average cloud cover in October - Sursaut, 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).

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Average visibility in October
Sursaut, French Guiana

Average visibility in October - Sursaut, 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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Sursaut, French Guiana

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