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

Fajardo reaches its highest average temperatures in August, measuring 84.2°F (29°C) at the peak and 80.2°F (26.8°C) at the lowest.

Heat index

For August, the heat index is computed to be a fiery hot 95°F (35°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Consider that heat index readings are for situations in the shade and light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. 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. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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

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

Rainfall

The month with the most rainfall is August, when the rain falls for 21.3 days and typically aggregates up to 2.83" (72mm) of precipitation.

Ocean temperature

In Fajardo, the average seawater temperature in August is 84.4°F (29.1°C).
Note: A water temperature from 77°F (25°C) to 84.2°F (29°C) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

The average length of the day in August is 12h and 44min.
On the first day of August in Fajardo, 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 in Fajardo is 8.7h.

UV index

January, March through December, with an average maximum UV index of 7, are months with the highest UV index in Fajardo. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 7 during August leads to these instructions:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Warning! Sand and water reflections boost the intensity of UV exposure.