August weather forecast
Half Moon Bay, Cayman Islands

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Weather in August

In Half Moon Bay, August sustains the higher summer temperatures experienced in July, averaging between 28.6°C (83.5°F) and 29.7°C (85.5°F). Interestingly, the wind speed continues to drop down to 18.5km/h (11.5mph), adding a soothing element to the overall warm weather. Despite a slight increase in rainfall to 76mm (2.99"), enjoy the surprises that this month holds. The daylight hours remain high, providing ample time for sun-seekers to enjoy the coastal town's activities. August brings the perfect mix of warm sunshine and cool breezes, making it a fantastic getaway.

Temperature

Half Moon Bay's temperature records reveal August as the warmest month, marked by average highs of 29.7°C (85.5°F) and lows of 28.6°C (83.5°F).

Heat index

For August, the heat index is computed to be a very hot 35°C (95°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In August, the average relative humidity in Half Moon Bay is 75%.

Rainfall

In Half Moon Bay, during August, the rain falls for 19.3 days and regularly aggregates up to 76mm (2.99") of precipitation. In Half Moon Bay, during the entire year, the rain falls for 241.1 days and collects up to 854mm (33.62") of precipitation.

Daylight

In August, the average length of the day is 12h and 46min.
On the first day of the month, sunrise is at 06:01 and sunset at 19:00. On the last day of August, in Half Moon Bay, sunrise is at 06:09 and sunset at 18:39 EST.

Sunshine

In Half Moon Bay, the average sunshine in August is 9.2h.

UV index

The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in August translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What time of the year is the hottest in Half Moon Bay?

August is the month when Half Moon Bay, Cayman Islands, sees the average highest temperatures, with a high of 29.7°C (85.5°F) and a low of 28.6°C (83.5°F).

How hot is it in Half Moon Bay in August?

August temperatures in Half Moon Bay, Cayman Islands, vary between a high-temperature of 29.7°C (85.5°F) and a low-temperature of 28.6°C (83.5°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 35°C (95°F).

What is the average humidity in August in Half Moon Bay?

In August, the average relative humidity is 75%.

How many days does it rain in August in Half Moon Bay?

In Half Moon Bay, Cayman Islands, in August, during 19.3 rainfall days, 76mm (2.99") of precipitation is typically accumulated.

How many hours of daylight does Half Moon Bay have in August?

The average day length in August in Half Moon Bay, Cayman Islands, is 12h and 46min.

When are sunrise and sunset in August in Half Moon Bay?

On the first day of August in Half Moon Bay, sunrise is at 06:01 and sunset at 19:00. On the last day of the month, sunrise is at 06:09 and sunset at 18:39 EST.

How long on average sun shines in August in Half Moon Bay?

The average sunshine duration in August in Half Moon Bay, Cayman Islands, is 9.2h.

What are the months with the highest UV index in Half Moon Bay?

The months with the highest UV index in Half Moon Bay are February through December, with an average maximum UV index of 7.

How high is the UV index in August in Half Moon Bay?

The average daily maximum UV index in August in Half Moon Bay is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Average temperature in August
Half Moon Bay, Cayman Islands

Average temperature in August - Half Moon Bay, Cayman Islands
  • Average high temperature in August: 29.7°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is February (26.2°C).

  • Average low temperature in August: 28.6°C

The month with the highest average low temperature is August (28.6°C).
The coldest month (with the lowest average low temperature) is March (24.9°C).

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Average pressure in August
Half Moon Bay, Cayman Islands

Average pressure in August - Half Moon Bay, Cayman Islands
  • Average pressure in August: 1013.5mbar

The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).

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Average wind speed in August
Half Moon Bay, Cayman Islands

Average wind speed in August - Half Moon Bay, Cayman Islands
  • Average wind speed in August: 18.5km/h

The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is September (17.2km/h).

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Average humidity in August
Half Moon Bay, Cayman Islands

Average humidity in August - Half Moon Bay, Cayman Islands
  • Average humidity in August: 75%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is September (74%).

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Average rainfall in August
Half Moon Bay, Cayman Islands

Average rainfall in August - Half Moon Bay, Cayman Islands
  • Average rainfall in August: 76mm

The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is March (24mm).

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Average rainfall days in August
Half Moon Bay, Cayman Islands

Average rainfall days in August - Half Moon Bay, Cayman Islands
  • Average rainfall days in August: 19.3 days

The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is March (16 days).

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Average daylight in August /
Average sunshine in August
Half Moon Bay, Cayman Islands

Average daylight in August / Average sunshine in August - Half Moon Bay, Cayman Islands
  • Average daylight in August: 12h and 5min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in August: 9h and 1min

The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in August
Half Moon Bay, Cayman Islands

Average sunshine days in August - Half Moon Bay, Cayman Islands
  • Average sunshine days in August: 8.8 days

The month with the most sunshine days is March (9.3 days).
The month with the least sunshine days is November (2.5 days).

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Average UV index in August
Half Moon Bay, Cayman Islands

Average UV index in August - Half Moon Bay, Cayman Islands
  • Average UV index in August: 7

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

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Average cloud cover in August
Half Moon Bay, Cayman Islands

Average cloud cover in August - Half Moon Bay, Cayman Islands
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 28).

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Average visibility in August
Half Moon Bay, Cayman Islands

Average visibility in August - Half Moon Bay, Cayman Islands
  • 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).

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Half Moon Bay, Cayman Islands

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