August weather forecast
Juana Díaz, PR

Weather in August

The last month of the summer, August, is also a hot month in Juana Díaz, Puerto Rico, with an average temperature varying between 86.5°F (30.3°C) and 76.6°F (24.8°C).

Temperature

August is the warmest month, with an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 76.6°F (24.8°C).

Heat index

The average heat index in August is calculated to be a torrid 100.4°F (38°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, metabolic differences, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In August, the average relative humidity is 78%.

Rainfall

In Juana Díaz, during August, the rain falls for 22.8 days and regularly aggregates up to 3.62" (92mm) of precipitation. In Juana Díaz, during the entire year, the rain falls for 249.1 days and collects up to 28.82" (732mm) of precipitation.

Ocean temperature

In August, the average ocean temperature in Juana Díaz is 84.6°F (29.2°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In August, the average length of the day is 12h and 43min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:00 pm. On the last day of August, sunrise is at 6:11 am and sunset at 6:41 pm AST.

Sunshine

The average sunshine in August in Juana Díaz, Puerto Rico, is 8.9h.

UV index

The months with the highest UV index are May through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 warmest month in Juana Díaz?

With an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 76.6°F (24.8°C), August is the warmest month in Juana Díaz.

What is the temperature in August in Juana Díaz?

The average high-temperature, in August, in Juana Díaz, Puerto Rico, is 86.5°F (30.3°C), while the average low-temperature is 76.6°F (24.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 100.4°F (38°C).

What is the average humidity in August in Juana Díaz?

In August, the average relative humidity in Juana Díaz, Puerto Rico, is 78%.

How much does it rain in Juana Díaz in August?

In Juana Díaz, in August, during 22.8 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

What is the water temperature in August in Juana Díaz?

In Juana Díaz, Puerto Rico, the average seawater temperature in August is 84.6°F (29.2°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Juana Díaz have in August?

The average day length in August in Juana Díaz, Puerto Rico, is 12h and 43min.

When is the sunrise / sunset in August in Juana Díaz?

On the first day of August, sunrise is at 6:04 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:41 pm AST.

How long on average sun shines in August in Juana Díaz?

The average sunshine duration in August in Juana Díaz is 8.9h.

What are the months with the highest UV index in Juana Díaz?

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

What is the UV index reading in August in Juana Díaz?

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

Average temperature in August
Juana Díaz, PR

Average temperature in August - Juana Díaz, PR
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (81°F).

  • Average low temperature in August: 76.6°F

The month with the highest average low temperature is August (76.6°F).
The coldest months (with the lowest average low temperature) are February and March (70.9°F).

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Average pressure in August
Juana Díaz, PR

Average pressure in August - Juana Díaz, PR
  • Average pressure in August: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.01"Hg).
The months with the lowest atmospheric pressure are October and November (29.9"Hg).

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Average wind speed in August
Juana Díaz, PR

Average wind speed in August - Juana Díaz, PR
  • Average wind speed in August: 7.5mph

The windiest month (with the highest average wind speed) is July (8mph).
The calmest month (with the lowest average wind speed) is November (5.5mph).

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Average humidity in August
Juana Díaz, PR

Average humidity in August - Juana Díaz, PR
  • Average humidity in August: 78%

The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is March (76%).

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Average rainfall in August
Juana Díaz, PR

Average rainfall in August - Juana Díaz, PR
  • Average rainfall in August: 3.62"

The wettest month (with the highest rainfall) is September (4.45").
The driest month (with the least rainfall) is February (0.83").

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Average rainfall days in August
Juana Díaz, PR

Average rainfall days in August - Juana Díaz, PR
  • Average rainfall days in August: 22.8 days

The month with the highest number of rainy days is October (24.8 days).
The month with the least rainy days is February (15 days).

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Average sea temperature in August
Juana Díaz, PR

Average sea temperature in August - Juana Díaz, PR
  • Average sea temperature in August: 84.5°F

The best month for swimming (with the highest average sea temperature) is September (85.3°F).
The coldest month (with the lowest average sea temperature) is March (79.3°F).

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Average daylight in August /
Average sunshine in August
Juana Díaz, PR

Average daylight in August / Average sunshine in August - Juana Díaz, PR
  • Average daylight in August: 12h and 43min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 4min).

  • Average sunshine in August: 8h and 54min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 54min).

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Average sunshine days in August
Juana Díaz, PR

Average sunshine days in August - Juana Díaz, PR
  • Average sunshine days in August: 3.5 days

The month with the most sunshine days is March (7.6 days).
The month with the least sunshine days is October (2.6 days).

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Average UV index in August
Juana Díaz, PR

Average UV index in August - Juana Díaz, PR
  • Average UV index in August: 7

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

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Average cloud cover in August
Juana Díaz, PR

Average cloud cover in August - Juana Díaz, PR
  • Average cloud cover in August: 30

The month with the most cloud cover is May (Cloud cover 34).
The month with the least cloud cover is February (Cloud cover 25).

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Average visibility in August
Juana Díaz, PR

Average visibility in August - Juana Díaz, PR
  • Average visibility in August: 6mi

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

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