August weather forecast
Mondésir, French Guiana

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Weather in August

August, the last month of the summer in Mondésir, is a hot month, with an average temperature varying between 23.9°C (75°F) and 30.9°C (87.6°F).

Temperature

With the advent of August, Mondésir's high-temperatures adjust to a tropical 30.9°C (87.6°F), closely aligning with the preceding month. The average temperature during August nights is registered at a moderately hot 23.9°C (75°F).

Heat index

For most parts of August, the heat index is evaluated at a blistering 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in August is 78%.

Rainfall

In August, in Mondésir, the rain falls for 19.2 days. Throughout August, 68mm (2.68") of precipitation is accumulated. In Mondésir, French Guiana, during the entire year, the rain falls for 277 days and collects up to 1707mm (67.2") of precipitation.

Daylight

In August, the average length of the day is 12h and 15min.
On the first day of August in Mondésir, sunrise is at 06:28 and sunset at 18:46. On the last day of the month, sunrise is at 06:25 and sunset at 18:37 -03.

Sunshine

The average sunshine in August is 8.8h.

UV index

June through November, with an average maximum UV index of 7, are months with the highest UV index in Mondésir. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 7 in August translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

Is it hot in Mondésir during August?

The average high-temperature, in August, in Mondésir, is 30.9°C (87.6°F), while the average low-temperature is 23.9°C (75°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 40°C (104°F).

What is the average humidity in August in Mondésir?

In Mondésir, the average relative humidity in August is 78%.

How many days does it rain in August in Mondésir?

In August, in Mondésir, French Guiana, the rain falls for 19.2 days. Throughout August, 68mm (2.68") of precipitation is accumulated.

How many hours of daylight does Mondésir have in August?

In Mondésir, the average day length in August is 12h and 15min.

When are sunrise and sunset in August in Mondésir?

On the first day of August, sunrise is at 06:28 and sunset at 18:46. On the last day of the month, sunrise is at 06:25 and sunset at 18:37 -03.

How long on average sun shines in August in Mondésir?

In August, the average sunshine duration is 8.8h.

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

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

What is the UV index reading in August in Mondésir?

In Mondésir, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.

Average temperature in August
Mondésir, French Guiana

Average temperature in August - Mondésir, French Guiana
  • Average high temperature in August: 30.9°C

The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).

  • Average low temperature in August: 23.9°C

The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).

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Average pressure in August
Mondésir, French Guiana

Average pressure in August - Mondésir, French Guiana
  • Average pressure in August: 1012.7mbar

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
Mondésir, French Guiana

Average wind speed in August - Mondésir, French Guiana
  • Average wind speed in August: 10km/h

The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).

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Average humidity in August
Mondésir, French Guiana

Average humidity in August - Mondésir, French Guiana
  • Average humidity in August: 78%

The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).

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Average rainfall in August
Mondésir, French Guiana

Average rainfall in August - Mondésir, French Guiana
  • Average rainfall in August: 68mm

The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).

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Average rainfall days in August
Mondésir, French Guiana

Average rainfall days in August - Mondésir, French Guiana
  • Average rainfall days in August: 19.2 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).

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Average daylight in August /
Average sunshine in August
Mondésir, French Guiana

Average daylight in August / Average sunshine in August - Mondésir, French Guiana
  • Average daylight in August: 12h and 2min

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 54min).

  • Average sunshine in August: 8h and 5min

The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).

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Average sunshine days in August
Mondésir, French Guiana

Average sunshine days in August - Mondésir, French Guiana
  • Average sunshine days in August: 6.8 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).

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Average UV index in August
Mondésir, French Guiana

Average UV index in August - Mondésir, French Guiana
  • Average UV index in August: 7

The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).

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Average cloud cover in August
Mondésir, French Guiana

Average cloud cover in August - Mondésir, French Guiana
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).

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Average visibility in August
Mondésir, French Guiana

Average visibility in August - Mondésir, French Guiana
  • Average visibility in August: 10km

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

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Mondésir, French Guiana

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