July weather forecast
San Fernando, Trinidad and Tobago

July continues to bring high levels of rainfall and warm temperatures, making the weather humid and sticky. Despite these conditions, life in San Fernando carries on, with locals and visitors obliged to carry umbrellas. Temperatures in July remain high, with the mercury touching 29.7°C (85.5°F) at its highest and accommodating a low of 25.8°C (78.4°F). This month records the highest rainfall of the year, reaching 86mm (3.39") across 22.7 days.

Temperature

Upon the beginning of July, San Fernando's high-temperatures register at a still moderately hot 29.7°C (85.5°F), maintaining the same temperature as the preceding month. San Fernando observes a minimal variance in temperature, with a consistent average low of 25.8°C (78.4°F) during the nights of July.

Heat index

The heat index value during July is appraised at a very hot 36°C (96.8°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity are July, November and December, with an average relative humidity of 78%.

Rainfall

In San Fernando, Trinidad and Tobago, in July, during 22.7 rainfall days, 86mm (3.39") 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 July, the average sea temperature is 28.2°C (82.8°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

In San Fernando, the average length of the day in July is 12h and 40min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:31. On the last day of July, sunrise is at 05:55 and sunset at 18:29 AST.

Sunshine

The average sunshine in July is 10.3h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in San Fernando, Trinidad and Tobago, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 during July translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.