October weather forecast
San Fernando, Trinidad and Tobago

October's weather presents a gradual transition from the wet season's end towards the relatively dry and cool conditions of the coming months. The climate remains comfortably warm, providing suitable conditions for outdoor festivities. October records a temperature spectrum from 30.4°C (86.7°F) at the threshold to 26.5°C (79.7°F) on the cooler end. However, the month still experiences more rainfall than the dry season, recording 82mm (3.23") across 17.9 days.

Temperature

As September transitions into October, the average high-temperature rests at a still tropical 30.4°C (86.7°F), maintaining a close resemblance to the previous month. San Fernando observes a slightly reduced average nighttime temperature of 26.5°C (79.7°F) during October.

Heat index

The heat index in October is appraised at a torrid 38°C (100.4°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in October is 77%.

Rainfall

In San Fernando, in October, during 17.9 rainfall days, 82mm (3.23") of precipitation is typically accumulated. Throughout the year, there are 202.6 rainfall days, and 599mm (23.58") of precipitation is accumulated.

Sea temperature

In San Fernando, the average seawater temperature in October is 28.9°C (84°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In October, the average length of the day is 11h and 54min.
On the first day of October, sunrise is at 05:54 and sunset at 17:56. On the last day of the month, sunrise is at 05:56 and sunset at 17:42 AST.

Sunshine

The average sunshine in October is 9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in San Fernando, Trinidad and Tobago. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In October, a regular UV index of 7 translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Take note! The UV strength of the Sun elevates when reflected off water and sand.