August weather forecast
Fajardo, PR

August stands out in the calendar for the highest air temperature recorded in the year in Fajardo, touching a high of 84.2°F (29°C). As the city experiences peak summer heat, the month also brings with it the highest rainfall of the year, experiencing approximately 2.83in of precipitation. Moreover, the sea temperature is at its warmest, extending a beckoning invite to swimmers and marine enthusiasts. Interestingly, while days continue to be long, the sunshine hours witness a slight decline compared to earlier months. This time of the year would thoroughly appeal to those who don't mind a little rain alongside their sunshine.

Temperature

In Fajardo, August is identified by the highest average temperatures, reaching a peak of 84.2°F (29°C) and a low of 80.2°F (26.8°C).

Heat index

The heat index in August is evaluated at a fiery hot 95°F (35°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

May through August, with an average relative humidity of 79%, are the most humid months.

Rainfall

August is the month with the most rainfall. Rain falls for 21.3 days and accumulates 2.83" (72mm) of precipitation.

Ocean temperature

In Fajardo, in August, the average water temperature is 84.4°F (29.1°C).
Note: Water surface temperatures from 77°F (25°C) to 84.2°F (29°C) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

In Fajardo, the average length of the day in August is 12h and 44min.
On the first day of August, sunrise is at 6:00 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 6:37 pm AST.

Sunshine

The average sunshine in August is 8.7h.

UV index

January, March through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 7 suggests these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The Sun's UV rays intensify with reflections from sand and water.