October weather forecast
Vega Alta, PR

October brings further cooling in Vega Alta, with a decrease in both high and low temperatures compared to September. Relative humidity registers a slight increase, with October experiencing more cloudy days compared to September. As the daylight starts to shrink, the month sees a decrease in UV index and sunshine days. October's wind conditions continue to calm, averaging at 6.8mph (10.9km/h). Substantial rainfall measuring 3.82" (97mm) mark October as a relatively wet month.

Temperature

During October, the average high-temperature in Vega Alta is a still warm 84.7°F (29.3°C), maintaining a close resemblance to that of the preceding month. Vega Alta's October nights observe a minor shift from the daytime temperatures, resulting in an average dip to a still moderately hot 78.4°F (25.8°C).

Heat index

For most parts of October, the heat index is estimated at a very hot 95°F (35°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In October, the average relative humidity in Vega Alta is 78%.

Rainfall

October is the month with the most rainfall. Rain falls for 24 days and accumulates 3.82" (97mm) of precipitation.

Daylight

In Vega Alta, the average length of the day in October is 11h and 43min.
On the first day of the month, sunrise is at 6:15 am and sunset at 6:13 pm. On the last day of October, sunrise is at 6:24 am and sunset at 5:53 pm AST.

Sunshine

The average sunshine in October is 8.2h.

UV index

May through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 7 during October translates into the following guidance:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.