August weather forecast
Bienvenue, French Guiana

Weather in August

August, the last month of the summer in Bienvenue, is another tropical month, with an average temperature varying between 21.7°C (71.1°F) and 32.3°C (90.1°F).

Temperature

In Bienvenue, the average high-temperature in August is practically the same as in July - a still tropical 32.3°C (90.1°F). In August, the average low-temperature is 21.7°C (71.1°F).

Heat index

The average heat index in August is calculated to be a burning hot 45°C (113°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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 average relative humidity in August in Bienvenue is 80%.

Rainfall

In Bienvenue, French Guiana, during August, the rain falls for 21.1 days and regularly aggregates up to 60mm (2.36") of precipitation. In Bienvenue, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

The average length of the day in August is 12h and 13min.
On the first day of August, sunrise is at 06:29 and sunset at 18:44. On the last day of the month, sunrise is at 06:25 and sunset at 18:36 -03.

Sunshine

In Bienvenue, the average sunshine in August is 8.4h.

UV index

August through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in August transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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 temperature in August in Bienvenue?

In Bienvenue, in August, the average high-temperature is 32.3°C (90.1°F), and the average low-temperature is 21.7°C (71.1°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 45°C (113°F).

What is the average humidity in August in Bienvenue?

In August, the average relative humidity in Bienvenue is 80%.

How many days does it rain in August in Bienvenue?

In Bienvenue, in August, it is raining for 21.1 days, with typically 60mm (2.36") of accumulated precipitation.

What is the average length of the day in August in Bienvenue?

The average day length in August in Bienvenue is 12h and 13min.

What time are sunrise and sunset in August in Bienvenue?

On the first day of August in Bienvenue, sunrise is at 06:29 and sunset at 18:44. On the last day of the month, sunrise is at 06:25 and sunset at 18:36 -03.

How many hours of sunshine does Bienvenue have in August?

In Bienvenue, the average sunshine duration in August is 8.4h.

What is the month with the highest UV index in Bienvenue?

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

How high is the UV index in August in Bienvenue?

In Bienvenue, French Guiana, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in August
Bienvenue, French Guiana

Average temperature in August - Bienvenue, French Guiana
  • Average high temperature in August: 32.3°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 August: 21.7°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 August
Bienvenue, French Guiana

Average pressure in August - Bienvenue, French Guiana
  • Average pressure in August: 1012.8mbar

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 August
Bienvenue, French Guiana

Average wind speed in August - Bienvenue, French Guiana
  • Average wind speed in August: 5.3km/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 August
Bienvenue, French Guiana

Average humidity in August - Bienvenue, French Guiana
  • Average humidity in August: 80%

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 August
Bienvenue, French Guiana

Average rainfall in August - Bienvenue, French Guiana
  • Average rainfall in August: 60mm

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 August
Bienvenue, French Guiana

Average rainfall days in August - Bienvenue, French Guiana
  • Average rainfall days in August: 21.1 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 August /
Average sunshine in August
Bienvenue, French Guiana

Average daylight in August / Average sunshine in August - Bienvenue, French Guiana
  • Average daylight in August: 12h and 13min

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 August: 8h and 24min

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 August
Bienvenue, French Guiana

Average sunshine days in August - Bienvenue, French Guiana
  • Average sunshine days in August: 6.4 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 August
Bienvenue, French Guiana

Average UV index in August - Bienvenue, French Guiana
  • Average UV index in August: 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 August
Bienvenue, French Guiana

Average cloud cover in August - Bienvenue, French Guiana
  • Average cloud cover in August: 53

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 August
Bienvenue, French Guiana

Average visibility in August - Bienvenue, French Guiana
  • Average visibility in August: 6km

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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