August weather forecast and climate
Marigot Bay, Saint Lucia

Weather in August

August, the last month of the summer, in Marigot Bay, is another warm month, with temperature in the range of an average low of 26.9°C (80.4°F) and an average high of 29.8°C (85.6°F).

Temperature

In August, the average high-temperature is practically the same as in July - a still moderately hot 29.8°C (85.6°F). The average low-temperature, in Marigot Bay, is 26.9°C (80.4°F).

Heat index

The average heat index in August is estimated at a torrid 35.8°C (96.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like clothing, metabolic differences, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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. 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. 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

Months with the highest humidity are May through August and November, with an average relative humidity of 75%.

Rainfall

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

Sea temperature

In August, the average sea temperature in Marigot Bay, Saint Lucia, is 28°C (82.4°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In August, the average length of the day in Marigot Bay is 12.6h.

Sunshine

In Marigot Bay, the average sunshine in August is 9.7h.

UV index

Months with the highest UV index in Marigot Bay, Saint Lucia, are January through May, July through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in August interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in August in Marigot Bay?

In August, in Marigot Bay, Saint Lucia, the average high-temperature is 29.8°C (85.6°F), and the average low-temperature is 26.9°C (80.4°F). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 35.8°C (96.4°F).

What is the most humid month in Marigot Bay?

May through August and November, with an average relative humidity of 75%, are most humid months in Marigot Bay, Saint Lucia.

What is the average humidity in August in Marigot Bay?

The average relative humidity in August is 75%.

How much does it rain in Marigot Bay in August?

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

What is the rainiest month in Marigot Bay?

August is the month with the most rainfall in Marigot Bay. Rain falls for 25.9 days and accumulates 82mm (3.23") of precipitation.

What is the water temperature in August in Marigot Bay?

In Marigot Bay, Saint Lucia, the average seawater temperature in August is 28°C (82.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in August in Marigot Bay?

The average length of the day in August is 12.6h.

How long on average sun shines in August in Marigot Bay?

In Marigot Bay, Saint Lucia, the average sunshine in August is 9.7h.

What are the months with the highest UV index in Marigot Bay?

January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index in Marigot Bay, Saint Lucia.

How high is the UV index in August in Marigot Bay?

The average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.

Average temperature in August
Marigot Bay, Saint Lucia

Average temperature in August - Marigot Bay, Saint Lucia
  • Average high temperature in August: 29.8°C

The warmest month (with the highest average high temperature) is September (30.3°C).
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).

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Average pressure in August
Marigot Bay, Saint Lucia

Average pressure in August - Marigot Bay, 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).

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Average wind speed in August
Marigot Bay, Saint Lucia

Average wind speed in August - Marigot Bay, 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).

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Average humidity in August
Marigot Bay, Saint Lucia

Average humidity in August - Marigot Bay, Saint Lucia
  • Average humidity in August: 75%

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

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Average rainfall in August
Marigot Bay, Saint Lucia

Average rainfall in August - Marigot Bay, 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).

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Average rainfall days in August
Marigot Bay, Saint Lucia

Average rainfall days in August - Marigot Bay, 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).

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Average sea temperature in August
Marigot Bay, Saint Lucia

Average sea temperature in August - Marigot Bay, Saint Lucia
  • Average sea temperature in August: 28°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (27°C).

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Average daylight in August /
Average sunshine in August
Marigot Bay, Saint Lucia

Average daylight in August / Average sunshine in August - Marigot Bay, Saint Lucia
  • Average daylight in August: 12.6h

Months with the longest days are June and July (Average daylight: 12.9h).
The month with the shortest days is December (Average daylight: 11.3h).

  • Average sunshine in August: 9.7h

The month with the most sunshine is April (Average sunshine: 9.8h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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Average sunshine days in August
Marigot Bay, Saint Lucia

Average sunshine days in August - Marigot Bay, 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).

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Average UV index in August
Marigot Bay, Saint Lucia

Average UV index in August - Marigot Bay, Saint Lucia
  • Average UV index in August: 7

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).

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Average cloud cover in August
Marigot Bay, Saint Lucia

Average cloud cover in August - Marigot Bay, Saint Lucia
  • Average cloud cover in August: 46

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).

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Average visibility in August
Marigot Bay, Saint Lucia

Average visibility in August - Marigot Bay, Saint Lucia
  • Average visibility in August: 10km

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

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