October weather forecast
Vega Baja, PR

In October, the city experiences a modest decline in temperatures with the high and low falling to 84.7°F (29.3°C) and 78.1°F (25.6°C), respectively. The descent in temperature is accompanied by a decrease in wind speed, averaging 6.8mph (10.9km/h). The increasingly cooler breezes and the autumn foliage paint a colorful landscape for Vega Baja. As the days grow shorter and the nights longer, October gently leads into the pre-winter month of November.

Temperature

Vega Baja starts October with an average high-temperature of a still warm 84.7°F (29.3°C), a minor shift from September's 85.5°F (29.7°C). Vega Baja's nighttime temperatures in October see a subtle dip to an average of 78.1°F (25.6°C).

Heat index

October's mean heat index is estimated at a sweltering 95°F (35°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In October, the rain falls for 22.1 days. Throughout October, 3.46" (88mm) of precipitation is accumulated. Throughout the year, there are 213.7 rainfall days, and 28.66" (728mm) of precipitation is accumulated.

Daylight

In October, the average length of the day is 11h and 43min.
On the first day of the month, sunrise is at 6:16 am and sunset at 6:13 pm. On the last day of October, in Vega Baja, sunrise is at 6:25 am and sunset at 5:53 pm AST.

Sunshine

In Vega Baja, the average sunshine in October is 8.3h.

UV index

April through November, with an average maximum UV index of 7, are months with the highest UV index in Vega Baja. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In October, the maximum UV index of 7 suggests this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.