August weather forecast
Grande Riviere, Saint Lucia

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Weather in August

August in Grande Riviere is at the height of the summer season with temperatures ticking up to 29.8°C (85.6°F) from 26.9°C (80.4°F). It's the warmest month the city witnesses, making it imperative for residents and tourists to stay hydrated and protected against the sunrays. Along with high temperatures, August also brings a generous amount of rainfall, providing relief from the relentless heat. Despite the climatic conditions, it's an excellent time for rainbow spotting due to sunlight interacting with rain droplets. It suggests carrying weather-friendly attire considering the humidity and erratic rainfall during this month.

Temperature

The transition from July to August brings an average high-temperature of a still warm 29.8°C (85.6°F), barely different from July's 29.4°C (84.9°F). Nighttime temperature in Grande Riviere sees a small decrement from daytime highs, dipping to an average of 26.9°C (80.4°F) during August.

Heat index

The heat index for August is calculated to be a fiery hot 36°C (96.8°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

May through August and November, with an average relative humidity of 75%, are the most humid months.

Rainfall

The month with the most rainfall is August, when the rain falls for 25.9 days and typically aggregates up to 82mm (3.23") of precipitation.

Daylight

In August, the average length of the day in Grande Riviere, Saint Lucia, is 12h and 35min.
On the first day of August in Grande Riviere, Saint Lucia, sunrise is at 05:48 and sunset at 18:32. On the last day of the month, sunrise is at 05:52 and sunset at 18:15 AST.

Sunshine

In August, the average sunshine is 9.7h.

UV index

The months with the highest UV index are January through May, July through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

How hot is August in Grande Riviere?

In Grande Riviere, 29.8°C (85.6°F) is the average high-temperature and 26.9°C (80.4°F) is the average low-temperature during August. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 36°C (96.8°F).

What are the most humid months in Grande Riviere?

May through August and November, with an average relative humidity of 75%, are most humid months.

What is the average humidity in August in Grande Riviere?

In Grande Riviere, Saint Lucia, the average relative humidity in August is 75%.

What is the rainiest month in Grande Riviere?

August is the month with the most rainfall in Grande Riviere, Saint Lucia. Rain falls for 25.9 days and accumulates 82mm (3.23") of precipitation.

How much does it rain in Grande Riviere in August?

In Grande Riviere, Saint Lucia, during August, the rain falls for 25.9 days and regularly aggregates up to 82mm (3.23") of precipitation.

How many hours of daylight does Grande Riviere have in August?

The average day length in August is 12h and 35min.

When are sunrise and sunset in August in Grande Riviere?

On the first day of August in Grande Riviere, sunrise is at 05:48 and sunset at 18:32. On the last day of the month, sunrise is at 05:52 and sunset at 18:15 AST.

How long on average sun shines in August in Grande Riviere?

In August, the average sunshine duration is 9.7h.

When is the highest UV index in Grande Riviere?

The months with the highest UV index are January through May, July through December, with an average maximum UV index of 7.

What is the UV index intensity in August in Grande Riviere?

In Grande Riviere, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in August
Grande Riviere, Saint Lucia

Average temperature in August - Grande Riviere, Saint Lucia
  • Average high temperature in August: 29.8°C

The warmest month (with the highest average high temperature) is September (30.3°C).
The months with the lowest average high temperature are January and February (27.5°C).

  • Average low temperature in August: 26.9°C

The month with the highest average low temperature is October (27.2°C).
The coldest month (with the lowest average low temperature) is March (25°C).

Average pressure in August
Grande Riviere, Saint Lucia

Average pressure in August - Grande Riviere, Saint Lucia
  • Average pressure in August: 1013.5mbar

The month with the highest atmospheric pressure is June (1015mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).

Average wind speed in August
Grande Riviere, Saint Lucia

Average wind speed in August - Grande Riviere, Saint Lucia
  • Average wind speed in August: 19.9km/h

The windiest month (with the highest average wind speed) is February (24.7km/h).
The calmest month (with the lowest average wind speed) is September (16.7km/h).

Average humidity in August
Grande Riviere, Saint Lucia

Average humidity in August - Grande Riviere, Saint Lucia
  • Average humidity in August: 75%

The months with the highest relative humidity are May, June, July, August and November (75%).
The months with the lowest relative humidity are January, February, March and September (73%).

Average rainfall in August
Grande Riviere, Saint Lucia

Average rainfall in August - Grande Riviere, Saint Lucia
  • Average rainfall in August: 82mm

The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (19mm).

Average rainfall days in August
Grande Riviere, Saint Lucia

Average rainfall days in August - Grande Riviere, Saint Lucia
  • Average rainfall days in August: 25.9 days

The month with the highest number of rainy days is July (26.5 days).
The month with the least rainy days is February (16.4 days).

Average daylight in August /
Average sunshine in August
Grande Riviere, Saint Lucia

Average daylight in August / Average sunshine in August - Grande Riviere, Saint Lucia
  • Average daylight in August: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is April (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in August
Grande Riviere, Saint Lucia

Average sunshine days in August - Grande Riviere, Saint Lucia
  • Average sunshine days in August: 1.3 days

The month with the most sunshine days is January (7.8 days).
The month with the least sunshine days is July (0.8 days).

Average UV index in August
Grande Riviere, Saint Lucia

Average UV index in August - Grande Riviere, Saint Lucia
  • Average UV index in August: 7

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

Average cloud cover in August
Grande Riviere, Saint Lucia

Average cloud cover in August - Grande Riviere, Saint Lucia
  • Average cloud cover in August: 46

The months with the most cloud cover are June and July (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 38).

Average visibility in August
Grande Riviere, Saint Lucia

Average visibility in August - Grande Riviere, Saint Lucia
  • Average visibility in August: 10km

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

Grande Riviere, Saint Lucia

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