September weather forecast
San Fernando, Trinidad and Tobago

September witnesses a reduction in rainfall and wind speed, providing relief from the steady showers experienced in the months before. The reduction in cloud cover implies more sunny days, and sea temperatures remain warm. The difference in maximum and minimum temperatures stays almost the same, with the highest being 30.5°C (86.9°F) and the lowest at 26.5°C (79.7°F). Rainfall this September measures up to 61mm (2.4"), spread over 18.8 days.

Temperature

In San Fernando, September is identified by the highest average temperatures, reaching a peak of 30.5°C (86.9°F) and a low of 26.5°C (79.7°F).

Heat index

The heat index value for September is appraised at a fiery hot 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In September, the average relative humidity in San Fernando is 76%.

Rainfall

In San Fernando, Trinidad and Tobago, in September, during 18.8 rainfall days, 61mm (2.4") of precipitation is typically accumulated. In San Fernando, Trinidad and Tobago, during the entire year, the rain falls for 202.6 days and collects up to 599mm (23.58") of precipitation.

Sea temperature

The month with the warmest seawater is September, with an average sea temperature of 29.3°C (84.7°F).
Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:14. On the last day of September, sunrise is at 05:54 and sunset at 17:56 AST.

Sunshine

August and September, with an average of 11.1h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.