October weather forecast
Bienvenue, French Guiana

Weather in October

October, the same as September, in Bienvenue, French Guiana, is a hot autumn month, with an average temperature varying between 22.2°C (72°F) and 34.3°C (93.7°F).

Temperature

October is the warmest month, with an average high-temperature of 34.3°C (93.7°F) and an average low-temperature of 22.2°C (72°F).

Heat index

In October, the average heat index is calculated to be a burning hot 51°C (123.8°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, clothing), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

With an average relative humidity of 75%, October is the least humid month in Bienvenue.

Rainfall

In Bienvenue, in October, it is raining for 12 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.

Daylight

In October, the average length of the day is 12h and 3min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:23. On the last day of October, in Bienvenue, French Guiana, sunrise is at 06:14 and sunset at 18:14 -03.

Sunshine

The average sunshine in October in Bienvenue is 8.7h.

UV index

August through October, 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 unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in October transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Bienvenue?

With an average high-temperature of 34.3°C (93.7°F) and an average low-temperature of 22.2°C (72°F), October is the warmest month in Bienvenue.

What is the temperature in October in Bienvenue?

In Bienvenue, French Guiana, in October, the average high-temperature is 34.3°C (93.7°F), and the average low-temperature is 22.2°C (72°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in October is calculated to be 51°C (123.8°F).

What is the least humid month in Bienvenue?

October is the least humid month in Bienvenue, French Guiana, with an average relative humidity of 75%.

What is the average humidity in October in Bienvenue?

In Bienvenue, the average relative humidity in October is 75%.

How many days does it rain in October in Bienvenue?

In Bienvenue, French Guiana, in October, it is raining for 12 days, with typically 22mm (0.87") of accumulated precipitation.

How many hours of daylight does Bienvenue have in October?

The average day length in October in Bienvenue, French Guiana, is 12h and 3min.

What time are sunrise and sunset in October in Bienvenue?

On the first day of October in Bienvenue, sunrise is at 06:17 and sunset at 18:23. On the last day of the month, sunrise is at 06:14 and sunset at 18:14 -03.

How many hours of sunshine does Bienvenue have in October?

In October, the average sunshine duration in Bienvenue, French Guiana, is 8.7h.

What are the months with the highest UV index in Bienvenue?

The months with the highest UV index in Bienvenue, French Guiana, are August through October, with an average maximum UV index of 7.

What is the UV index reading in October in Bienvenue?

In October, the average daily maximum UV index in Bienvenue is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Bienvenue, French Guiana

Average temperature in October - Bienvenue, French Guiana
  • Average high temperature in October: 34.3°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 October: 22.2°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).

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Average pressure in October
Bienvenue, French Guiana

Average pressure in October - Bienvenue, French Guiana
  • Average pressure in October: 1010.6mbar

The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

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Average wind speed in October
Bienvenue, French Guiana

Average wind speed in October - Bienvenue, French Guiana
  • Average wind speed in October: 6.1km/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).

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Average humidity in October
Bienvenue, French Guiana

Average humidity in October - Bienvenue, French Guiana
  • Average humidity in October: 75%

The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in October
Bienvenue, French Guiana

Average rainfall in October - Bienvenue, French Guiana
  • Average rainfall in October: 22mm

The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).

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Average rainfall days in October
Bienvenue, French Guiana

Average rainfall days in October - Bienvenue, French Guiana
  • Average rainfall days in October: 12 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).

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

Average daylight in October / Average sunshine in October - Bienvenue, French Guiana
  • Average daylight in October: 12h and 3min

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 57min).

  • Average sunshine in October: 8h and 42min

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).

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Average sunshine days in October
Bienvenue, French Guiana

Average sunshine days in October - Bienvenue, French Guiana
  • Average sunshine days in October: 16.3 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).

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Average UV index in October
Bienvenue, French Guiana

Average UV index in October - Bienvenue, French Guiana
  • Average UV index in October: 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).

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Average cloud cover in October
Bienvenue, French Guiana

Average cloud cover in October - Bienvenue, French Guiana
  • Average cloud cover in October: 46

The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).

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Average visibility in October
Bienvenue, French Guiana

Average visibility in October - Bienvenue, French Guiana
  • Average visibility in October: 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).

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