October weather forecastGuánica, PR

Weather in October

October, while carrying over the climatic tendencies of September, shows a slight decrement in rainfall, presenting drier conditions. Yet, the inviting seawater temperature remains constant, making beachside activities and water sports viable options for holiday activities. With bountiful sunshine supplemented by long daylight hours, October brings ample opportunities to explore the city and its surrounding regions. The extensive hiking trails, surrounded by fascinating biomes, showcase nature’s magic at play. Be it hiking in the tropical rainforest or exploring the beautiful coastlines, there's never a dull moment in Guánica, Puerto Rico.

Temperature

Guánica marks the onset of October with an average high-temperature of a warm 85.1°F (29.5°C), a subtle shift from September's 86.2°F (30.1°C). Guánica sees a gentle drop from the daily peak temperature in October, with an average low settling at a still moderately hot 76.6°F (24.8°C).

Heat index

The average heat index in October is calculated to be a fiery hot 96.8°F (36°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. 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 highly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in October is 79%.

Rainfall

In October, in Guánica, the rain falls for 21.9 days. Throughout October, 3.11" (79mm) of precipitation is accumulated. In Guánica, Puerto Rico, during the entire year, the rain falls for 224.9 days and collects up to 23.58" (599mm) of precipitation.

Snowfall

In Guánica, snow does not fall in January through August, October through December.

Ocean temperature

In Guánica, in October, the average water temperature is 84.6°F (29.2°C).
Note: Swimming, diving, and similar water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

The average length of the day in October is 11h and 44min.
On the first day of the month, sunrise is at 6:18 am and sunset at 6:16 pm. On the last day of October, sunrise is at 6:26 am and sunset at 5:55 pm AST.

Sunshine

The average sunshine in October is 8.5h.

UV index

The months with the highest UV index are April through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in October translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.