August weather forecast
Culebra, PR

In August, Culebra weather is humid and warm, reaching its peak temperature of 83.7°F (28.7°C). The sea temperature also escalates to 84.5°F (29.2°C), encouraging aquatic activities among tourists. The increasing rainfall of 4.21" (107mm) over this month nourishes the thriving vegetation on the island. Daylight hours start to reduce slightly, signaling the beginning of shorter days. Despite this, there is sufficient sunshine for vacationers to enjoy a variety of outdoor activities.

Temperature

The transition from July to August in Culebra sees average high-temperatures adjusting to a still moderately hot 83.7°F (28.7°C), from a not significantly different 82.9°F (28.3°C). Throughout August, Culebra's nights experience a slight temperature dip to a still moderately hot 80.8°F (27.1°C).

Heat index

August's mean heat index is estimated at a hot 93.2°F (34°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

May through August, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Culebra, Puerto Rico, during August, the rain falls for 22.5 days and regularly aggregates up to 4.21" (107mm) of precipitation. In Culebra, during the entire year, the rain falls for 253.1 days and collects up to 33.27" (845mm) of precipitation.

Ocean temperature

In Culebra, Puerto Rico, the average seawater temperature in August is 84.6°F (29.2°C).
Note: Between 77°F (25°C) and 84.2°F (29°C), water temperature is typically considered very warm and pleasurable by everyone. Water activities at these temperatures are enjoyable for extended periods without discomfort.

Daylight

In Culebra, the average length of the day in August is 12h and 44min.
On the first day of the month, sunrise is at 5:59 am and sunset at 6:55 pm. On the last day of August, sunrise is at 6:06 am and sunset at 6:35 pm AST.

Sunshine

The average sunshine in August is 8.9h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 7 during August translates into the following guidance:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take note! The UV strength of the Sun elevates when reflected off water and sand.