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
Saint Augustine's warmest month, September, generally records average temperatures ranging from a high of 30.1°C (86.2°F) to a low of 26.5°C (79.7°F).Heat index
For most parts of September, the heat index is calculated to be a fiery hot 37°C (98.6°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Saint Augustine, Trinidad and Tobago, in September, it is raining for 19.9 days, with typically 78mm (3.07") of accumulated 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 in Saint Augustine is 12h and 11min.On the first day of the month, sunrise is at 05:55 and sunset at 18:14. On the last day of September, sunrise is at 05:54 and sunset at 17:56 AST.
Sunshine
The average sunshine in September in Saint Augustine is 11h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Saint Augustine?
How hot is September in Saint Augustine?
What is the average humidity in September in Saint Augustine?
How much does it rain in Saint Augustine in September?
How many hours of daylight does Saint Augustine have in September?
When are sunrise and sunset in September in Saint Augustine?
How long on average sun shines in September in Saint Augustine?
What are the months with the highest UV index in Saint Augustine?
What are the months with the lowest UV index in Saint Augustine?
What is the UV index reading in September in Saint Augustine?
Average temperature in September
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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).
Saint Augustine, Trinidad and Tobago
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