July weather forecast
Port of Spain, Trinidad and Tobago

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The ancient building hosting the public library of the Port of Spain in Trinidad and Tobago
The ancient building hosting the public library of the Port of Spain in Trinidad and Tobago

Weather in July

July carries on the wet trend from June with only a slight dip in rainfall. The weather remains hot, humid, and rain is still frequent. Daylight hours, however, decrease subtly from 12.7 hours in June to 12.7 hours in July. The rainfall engenders a rather vivid and vibrant cityscape that further amplifies the Port of Spain's tropical appeal. The city's rich cultural scene, replete with music, arts, and cuisines, shines through notwithstanding the rain.

Temperature

July's climate in Port of Spain shows a minor adjustment in average high-temperatures to a still hot 31.3°C (88.3°F) from June's 31.5°C (88.7°F). July's nights observe an average temperature of 23°C (73.4°F).

Heat index

In July, the heat index is computed to be an extremely hot 43°C (109.4°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in July is 84%.

Rainfall

In Port of Spain, in July, it is raining for 21 days, with typically 194mm (7.64") of accumulated precipitation. In Port of Spain, during the entire year, the rain falls for 166 days and collects up to 1408mm (55.43") of precipitation.

Sea temperature

In Port of Spain, in July, the average water temperature is 28°C (82.4°F).
Note: For any water activity, surface water temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed perfect and extremely pleasing for enduring enjoyment.

Daylight

In July, the average length of the day is 12h and 41min.
On the first day of the month, sunrise is at 05:47 and sunset at 18:32. On the last day of July, in Port of Spain, Trinidad and Tobago, sunrise is at 05:54 and sunset at 18:30 AST.

Sunshine

In Port of Spain, the average sunshine in July is 6.6h.

UV index

The months with the highest UV index in Port of Spain are February through October, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 12 in July translates into the following instructions:
Enforce all necessary safety measures, unprotected skin may suffer burns swiftly. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Even when the sky is cloudy, apply generously and frequently reapply a sunscreen with SPF 30 or more, especially post every swim or outdoor exercise. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.

Frequently asked questions

How hot does it get in Port of Spain in July?

An average high-temperature, in July, in Port of Spain, is 31.3°C (88.3°F) and the average low-temperature is 23°C (73.4°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in July is computed to be 43°C (109.4°F).

What is the average humidity in July in Port of Spain?

In Port of Spain, the average relative humidity in July is 84%.

How much does it rain in Port of Spain in July?

In Port of Spain, Trinidad and Tobago, in July, during 21 rainfall days, 194mm (7.64") of precipitation is typically accumulated.

What is the water temperature in July in Port of Spain?

In Port of Spain, in July, the average water temperature is 28°C (82.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in July in Port of Spain?

In July, the average day length is 12h and 41min.

When is the sunrise / sunset in July in Port of Spain?

On the first day of July, sunrise is at 05:47 and sunset at 18:32. On the last day of the month, sunrise is at 05:54 and sunset at 18:30 AST.

How long on average sun shines in July in Port of Spain?

The average sunshine duration in July in Port of Spain is 6.6h.

What is the month with the highest UV index in Port of Spain?

February through October, with an average maximum UV index of 12, are months with the highest UV index in Port of Spain.

What is the UV index intensity in July in Port of Spain?

In July, the average daily maximum UV index is 12. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in July
Port of Spain, Trinidad and Tobago

Average temperature in July - Port of Spain, Trinidad and Tobago
  • Average high temperature in July: 31.3°C

The warmest month (with the highest average high temperature) is May (33.1°C).
The month with the lowest average high temperature is January (28°C).

  • Average low temperature in July: 23°C

The month with the highest average low temperature is June (23.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).

Average humidity in July
Port of Spain, Trinidad and Tobago

Average humidity in July - Port of Spain, Trinidad and Tobago
  • Average humidity in July: 84%

The month with the highest relative humidity is November (86%).
The months with the lowest relative humidity are March and April (77%).

Average rainfall in July
Port of Spain, Trinidad and Tobago

Average rainfall in July - Port of Spain, Trinidad and Tobago
  • Average rainfall in July: 193.6mm

The wettest month (with the highest rainfall) is August (244mm).
The driest month (with the least rainfall) is March (16.9mm).

Average rainfall days in July
Port of Spain, Trinidad and Tobago

Average rainfall days in July - Port of Spain, Trinidad and Tobago
  • Average rainfall days in July: 21 days

The month with the highest number of rainy days is July (21 days).
The months with the least rainy days are March and April (6 days).

Average sea temperature in July
Port of Spain, Trinidad and Tobago

Average sea temperature in July - Port of Spain, Trinidad and Tobago
  • Average sea temperature in July: 28°C

The best month for swimming (with the highest average sea temperature) is September (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in July /
Average sunshine in July
Port of Spain, Trinidad and Tobago

Average daylight in July / Average sunshine in July - Port of Spain, Trinidad and Tobago
  • Average daylight in July: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in July: 6h and 4min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).

Average UV index in July
Port of Spain, Trinidad and Tobago

Average UV index in July - Port of Spain, Trinidad and Tobago
  • Average UV index in July: 12

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 9).

Port of Spain, Trinidad and Tobago

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