Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings the highest temperatures, with an average high of 30.1°C (86.2°F) and an average low of 26.5°C (79.7°F).Heat index
For September, the heat index is calculated to be a sweltering 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Piarco, the average relative humidity in September is 77%.Rainfall
In Piarco, during September, the rain falls for 19.9 days and regularly aggregates up to 78mm (3.07") of precipitation. Throughout the year, there are 194.8 rainfall days, and 640mm (25.2") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 11min.On the first day of September, sunrise is at 05:55 and sunset at 18:14. On the last day of the month, sunrise is at 05:54 and sunset at 17:56 AST.
Sunshine
In September, the average sunshine is 11h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Piarco. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 7 transforms into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month?
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Piarco have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Piarco have in September?
What are the months with the highest UV index?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Piarco, Trinidad and Tobago
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is September (30.1°C).
The month with the lowest average high temperature is January (27.9°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is October (26.6°C).
The coldest months (with the lowest average low temperature) are January and February (24.8°C).
Average pressure in September
Piarco, Trinidad and Tobago
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Piarco, Trinidad and Tobago
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is August (13.6km/h).
Average humidity in September
Piarco, Trinidad and Tobago
- Average humidity in September: 77%
The month with the highest relative humidity is July (79%).
The months with the lowest relative humidity are February, March and April (75%).
Average rainfall in September
Piarco, Trinidad and Tobago
- Average rainfall in September: 78mm
The wettest month (with the highest rainfall) is October (115mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in September
Piarco, Trinidad and Tobago
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (22.2 days).
The months with the least rainy days are February and April (10.3 days).
Average daylight in September /
Average sunshine in September
Piarco, Trinidad and Tobago
- Average daylight in September: 12h and 1min
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 September: 11h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Piarco, Trinidad and Tobago
- Average sunshine days in September: 7.4 days
The months with the most sunshine days are March and April (15.9 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in September
Piarco, Trinidad and Tobago
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Piarco, Trinidad and Tobago
- Average cloud cover in September: 27
The month with the most cloud cover is June (Cloud cover 40).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in September
Piarco, Trinidad and Tobago
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Piarco, Trinidad and Tobago
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