July weather forecast
Culebra, PR

Culebra's weather in July continues to intensify. With the hottest temperature of 82.9°F (28.3°C) and rainfall totalling 2.91" (74mm) spread over 21.7 days, it is a warm and wet month. Despite increasing cloud cover, there's plenty of sunshine to keep things exciting. The temperature of the sea hovers around a warm 83.6°F (28.7°C), perfect for swimming and diving. Blowing at 15mph (24.1km/h) on average, the wind provides a cooling effect against the arduous heat.

Temperature

Culebra marks the onset of July with an average high-temperature of a still moderately hot 82.9°F (28.3°C), a subtle shift from June's 82.6°F (28.1°C). A modest decline from daytime high temperatures is noticed in July, marking the average low at a still warm 80.2°F (26.8°C).

Heat index

In July, the heat index is estimated at a hot 91.4°F (33°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

The months with the highest humidity in Culebra are May through August, with an average relative humidity of 78%.

Rainfall

In Culebra, Puerto Rico, in July, during 21.7 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Culebra, Puerto Rico, during the entire year, the rain falls for 253.1 days and collects up to 33.27" (845mm) of precipitation.

Ocean temperature

In July, the average ocean temperature in Culebra is 83.7°F (28.7°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

In July, the average length of the day in Culebra is 13h and 6min.
On the first day of the month, sunrise is at 5:48 am and sunset at 7:01 pm. On the last day of July, sunrise is at 5:59 am and sunset at 6:56 pm AST.

Sunshine

In July, the average sunshine is 10.3h.

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 in Culebra are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In July, a daily UV index of 7 turns into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Watch out! Reflections from sand and water can surge UV radiation exposure.