October weather forecast
Culebra, PR

In October, Culebra, Puerto Rico, USA, experiences further reductions in temperatures. The decline in daylight hours indicates the approaching winter season. The extended rainy period, with 4.37" (111mm) of rainfall over 23.6 days, breathes life into the island's flora. Although the sea temperature slightly decreases to 84.6°F (29.2°C), it remains comfortable enough for beach activities. At the same time, wind velocity begins to increase, providing a cooler ambiance.

Temperature

Entering October, Culebra's average high-temperature reads a still warm 83.7°F (28.7°C), indicating a close resemblance to the previous month's climate. In Culebra, the nightly October temperatures experience a slight descent from daily highs to an average low of 81.5°F (27.5°C).

Heat index

The heat index for October is estimated at a tropical 91.4°F (33°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The months with the lowest humidity in Culebra are January through March, October through December, with an average relative humidity of 75%.

Rainfall

In October, the rain falls for 23.6 days. Throughout October, 4.37" (111mm) of precipitation is 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 Culebra, in October, the average water temperature is 84.6°F (29.2°C).
Note: Water temperatures from 77°F (25°C) to 84.2°F (29°C) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The average length of the day in October in Culebra is 11h and 43min.
On the first day of October, sunrise is at 6:11 am and sunset at 6:09 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 5:49 pm AST.

Sunshine

The average sunshine in October in Culebra is 7.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In October, a regular UV index of 7 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Notice! The reflection of water and sand increases the UV radiation significantly.