August weather forecast
Roche Chapeau, French Guiana

August

Weather in August

August, the last month of the summer in Roche Chapeau, is another hot month, with temperature in the range of an average high of 32.8°C (91°F) and an average low of 20.5°C (68.9°F).

Temperature

Roche Chapeau marks the arrival of August with an average high-temperature of a still hot 32.8°C (91°F), hardly different from July's 31.1°C (88°F). The significant decline in Roche Chapeau's temperature, from day to night, averages of 20.5°C (68.9°F) in August.

Heat index

The heat index value during August is computed to be a burning hot 47°C (116.6°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Roche Chapeau, the average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 18.8 days. Throughout August, 76mm (2.99") of precipitation is accumulated. Throughout the year, in Roche Chapeau, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.

Daylight

In August, the average length of the day in Roche Chapeau is 12h and 13min.
On the first day of August, sunrise is at 06:32 and sunset at 18:46. On the last day of the month, sunrise is at 06:28 and sunset at 18:38 -03.

Sunshine

The average sunshine in August is 8.6h.

UV index

August 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 daily high UV index of 7 in August translates into this advice:
Ward off overexposure. Defence against solar harm is crucial. 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. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

How hot does it get in Roche Chapeau in August?
In August, in Roche Chapeau, the average high-temperature is 32.8°C (91°F), and the average low-temperature is 20.5°C (68.9°F). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in August is computed to be 47°C (116.6°F).
What is the average humidity in August in Roche Chapeau?
In Roche Chapeau, French Guiana, the average relative humidity in August is 79%.
How many days does it rain in August in Roche Chapeau?
In Roche Chapeau, French Guiana, during August, the rain falls for 18.8 days and regularly aggregates up to 76mm (2.99") of precipitation.
How many hours of daylight does Roche Chapeau have in August?
The average day length in August in Roche Chapeau, French Guiana, is 12h and 13min.
When are sunrise and sunset in August in Roche Chapeau?
On the first day of August, sunrise is at 06:32 and sunset at 18:46. On the last day of the month, sunrise is at 06:28 and sunset at 18:38 -03.
How long on average sun shines in August in Roche Chapeau?
The average sunshine duration in August is 8.6h.
When is the highest UV index in Roche Chapeau?
August through November, with an average maximum UV index of 7, are months with the highest UV index in Roche Chapeau, French Guiana.
What is the UV index reading in August in Roche Chapeau?
In August, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
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 August
Roche Chapeau, French Guiana
  • Average high temperature in August: 32.8°C

The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.3°C).

  • Average low temperature in August: 20.5°C

The month with the highest average low temperature is May (21.9°C).
The coldest months (with the lowest average low temperature) are August and September (20.5°C).

Average pressure in August
Roche Chapeau, French Guiana
  • Average pressure in August: 1012.4mbar

The months with the highest atmospheric pressure are June and July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in August
Roche Chapeau, French Guiana
  • Average wind speed in August: 4.5km/h

The windiest months (with the highest average wind speed) are February, March and November (5.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).

Average humidity in August
Roche Chapeau, French Guiana
  • Average humidity in August: 79%

The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Roche Chapeau, French Guiana
  • Average rainfall in August: 76mm

The wettest month (with the highest rainfall) is May (192mm).
The driest month (with the least rainfall) is October (21mm).

Average rainfall days in August
Roche Chapeau, French Guiana
  • Average rainfall days in August: 18.8 days

The months with the highest number of rainy days are January and March (26.8 days).
The month with the least rainy days is October (10.4 days).

Average daylight in August /
Average sunshine in August
Roche Chapeau, French Guiana
  • Average daylight in August: 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: 12h and 0min).

  • Average sunshine in August: 8h and 4min

The months with the most sunshine are September and October (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in August
Roche Chapeau, French Guiana
  • Average sunshine days in August: 9.5 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (1.8 days).

Average UV index in August
Roche Chapeau, French Guiana
  • Average UV index in August: 7

The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, March and December (UV index 5).

Average cloud cover in August
Roche Chapeau, French Guiana
  • Average cloud cover in August: 52

The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is October (Cloud cover 44).

Average visibility in August
Roche Chapeau, French Guiana
  • Average visibility in August: 7km

The month with the highest visibility is October (8km).
The month with the lowest visibility is May (5km).

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