August weather forecast
Juana Díaz, PR

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Weather in August

August sees the continuation of summer weather conditions in Puerto Rico, USA. While the temperatures remain relatively stable, the sea temperature peaks at 84.5°F (29.2°C), making it perfect for any water-based activities. Evenings carry the warmth of the day and have a slightly higher humidity, intensifying night-time tropical feel. Intermittent showers dot the month, bringing a sense of freshness and balance to the hot days. As the season transitions into September, anticipate a gradual dip in temperatures and a noticeable increase in rainfall.

Temperature

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

Heat index

August's heat index is estimated at a sweltering 100.4°F (38°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in August in Juana Díaz is 78%.

Rainfall

In Juana Díaz, in August, during 22.8 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. 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 Juana Díaz, the average seawater temperature in August is 84.6°F (29.2°C).
Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

The average length of the day in August in Juana Díaz, Puerto Rico, 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 6:40 pm AST.

Sunshine

In August, the average sunshine is 8.9h.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index in Juana Díaz. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in August leads to these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Watch out! Reflections from sand and water can surge UV radiation exposure.
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Frequently asked questions

What time of the year is the hottest in Juana Díaz?

August is the month when Juana Díaz's temperatures reach their peak, with averages of 86.5°F (30.3°C) and lows of 76.6°F (24.8°C).

How hot is August in Juana Díaz?

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

What is the average humidity in August in Juana Díaz?

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

How much does it rain in Juana Díaz in August?

In August, in Juana Díaz, Puerto Rico, the rain falls for 22.8 days. Throughout August, 3.62" (92mm) of precipitation is accumulated.

How warm is the water in August in Juana Díaz?

In August, the average ocean temperature in Juana Díaz 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.

What is the average length of the day in August in Juana Díaz?

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

What time are sunrise and sunset in August in Juana Díaz?

In August, on the first day of the month, 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 6:40 pm AST.

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

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

When is the highest UV index in Juana Díaz?

The months with the highest UV index in Juana Díaz 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, Puerto Rico, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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 4min

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 6min).

  • Average sunshine in August: 8h and 5min

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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Juana Díaz, Puerto Rico, USA

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