October weather forecast
Barceloneta, PR

October in Barceloneta does not surrender the grip of the wet season right off, leading to an increase in rainfall days to 22.1, the hichest throughout the year, with an average rainfall volume of 3.46" (88mm). However, average temperatures start trending down, marking the onset of cooler days and nights. The sea temperature also gently cools, suggesting the impending end of the summer season.

Temperature

With the advent of October, Barceloneta experiences an average high-temperature of a still moderately hot 84.7°F (29.3°C), mirroring a close resemblance to the previous month. In October, Barceloneta experiences a marginal drop in temperature, with averages of 78.1°F (25.6°C) at night.

Heat index

For most parts of October, the heat index is estimated at a fiery hot 95°F (35°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The months with the highest humidity in Barceloneta are May through July, October and November, with an average relative humidity of 79%.

Rainfall

In Barceloneta, during October, the rain falls for 22.1 days and regularly aggregates up to 3.46" (88mm) of precipitation. In Barceloneta, Puerto Rico, during the entire year, the rain falls for 213.7 days and collects up to 28.66" (728mm) of precipitation.

Ocean temperature

In Barceloneta, in October, the average water temperature is 84.6°F (29.2°C).
Note: In any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In October, the average length of the day in Barceloneta is 11h and 43min.
On the first day of the month, sunrise is at 6:16 am and sunset at 6:14 pm. On the last day of October, sunrise is at 6:25 am and sunset at 5:53 pm AST.

Sunshine

In October, the average sunshine in Barceloneta, Puerto Rico, is 8.3h.

UV index

April through November, 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 unprotected exposure to Sun's UV rays for the average person.
Note: In October, the maximum UV index of 7 suggests this advice:
Fend off overexposure. Sun protection is vital. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.