August weather forecast
Toa Baja, PR

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Weather in August

August continues the traditional tropical trend in Toa Baja. With slightly longer daylights, there is more sunshine for outdoor activities. The afternoons are warmed to a comfortable level, while evenings remain refreshing. Rainfall nearly equals that of July, maintaining a balance in the environment. The wind patterns during the month are consistent, transitioning smoothly into September.

Temperature

August, on average, is the warmest month, registering a high temperature of 85.5°F (29.7°C) and a low of 78.4°F (25.8°C).

Heat index

August's heat index is calculated to be a torrid 96.8°F (36°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing 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 relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In August, the average relative humidity is 78%.

Rainfall

In August, the rain falls for 19.7 days. Throughout August, 2.44" (62mm) of precipitation is accumulated. In Toa Baja, during the entire year, the rain falls for 223.5 days and collects up to 27.95" (710mm) of precipitation.

Daylight

The average length of the day in August is 12h and 44min.
On the first day of August, sunrise is at 6:03 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 6:39 pm AST.

Sunshine

The average sunshine in August is 9.1h.

UV index

The months with the highest UV index are May through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 7 during August, leads to the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Toa Baja?

August, recording an average high temperature of 85.5°F (29.7°C) and a low temperature of 78.4°F (25.8°C), is Toa Baja's warmest month.

Is it hot during August?

The high-temperature during August is 85.5°F (29.7°C) and the low-temperature is 78.4°F (25.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 96.8°F (36°C).

What is the average humidity in August in Toa Baja?

The average relative humidity in August in Toa Baja is 78%.

How many days does it rain in August?

In August, the rain falls for 19.7 days. Throughout August, 2.44" (62mm) of precipitation is accumulated.

What is the average length of the day in August?

The average day length in August is 12h and 44min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:03 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 6:39 pm AST.

How many hours of sunshine does Toa Baja have in August?

The average sunshine duration in August is 9.1h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

In Toa Baja, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe 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
Toa Baja, PR

Average temperature in August - Toa Baja, PR
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (79.9°F).

  • Average low temperature in August: 78.4°F

The months with the highest average low temperature are August, September and October (78.4°F).
The coldest month (with the lowest average low temperature) is March (73°F).

Average pressure in August
Toa Baja, PR

Average pressure in August - Toa Baja, PR
  • Average pressure in August: 29.97"Hg

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

Average wind speed in August
Toa Baja, PR

Average wind speed in August - Toa Baja, PR
  • Average wind speed in August: 9.6mph

The windiest month (with the highest average wind speed) is July (10mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).

Average humidity in August
Toa Baja, PR

Average humidity in August - Toa Baja, PR
  • Average humidity in August: 78%

The months with the highest relative humidity are May, June, July and November (79%).
The month with the lowest relative humidity is March (76%).

Average rainfall in August
Toa Baja, PR

Average rainfall in August - Toa Baja, PR
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is October (3.82").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in August
Toa Baja, PR

Average rainfall days in August - Toa Baja, PR
  • Average rainfall days in August: 19.7 days

The month with the highest number of rainy days is October (24 days).
The months with the least rainy days are January and February (14.2 days).

Average daylight in August /
Average sunshine in August
Toa Baja, PR

Average daylight in August / Average sunshine in August - Toa Baja, 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 0min).

  • Average sunshine in August: 9h and 1min

The months with the most sunshine are May and June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in August
Toa Baja, PR

Average sunshine days in August - Toa Baja, PR
  • Average sunshine days in August: 4.9 days

The month with the most sunshine days is January (9.8 days).
The months with the least sunshine days are October and November (3.5 days).

Average UV index in August
Toa Baja, PR

Average UV index in August - Toa Baja, PR
  • Average UV index in August: 7

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

Average cloud cover in August
Toa Baja, PR

Average cloud cover in August - Toa Baja, PR
  • Average cloud cover in August: 31

The months with the most cloud cover are May, July and November (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 26).

Average visibility in August
Toa Baja, PR

Average visibility in August - Toa Baja, 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).

Toa Baja, Puerto Rico, USA

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