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, marked by an average high-temperature of 30.5°C (86.9°F) and a low-temperature of 26.5°C (79.7°F), is the warmest month.Heat index
September's mean heat index is evaluated at a sweltering 38°C (100.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Waterloo, Trinidad and Tobago, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 18.8 days. Throughout September, 61mm (2.4") of precipitation is accumulated. In Waterloo, Trinidad and Tobago, during the entire year, the rain falls for 202.6 days and collects up to 599mm (23.58") of precipitation.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September in Waterloo, sunrise is at 05:56 and sunset at 18:15. On the last day of the month, sunrise is at 05:54 and sunset at 17:56 AST.
Sunshine
The months with the most sunshine in Waterloo, Trinidad and Tobago, are August and September, with an average of 11.1h of sunshine.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 Waterloo are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average UV index of 7 in September transforms into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Waterloo?
How hot is it in Waterloo in September?
What is the average humidity in September in Waterloo?
How many days does it rain in September in Waterloo?
What is the average length of the day in September in Waterloo?
What time are sunrise and sunset in September in Waterloo?
What are the months with the most sunshine in Waterloo?
How long on average sun shines in September in Waterloo?
What are the months with the highest UV index in Waterloo?
What is the month with the lowest UV index in Waterloo?
How high is the UV index in September in Waterloo?
Average temperature in September
Waterloo, Trinidad and Tobago
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is September (30.5°C).
The month with the lowest average high temperature is January (28.2°C).
- Average low temperature in September: 26.5°C
The months with the highest average low temperature are September and October (26.5°C).
The coldest month (with the lowest average low temperature) is February (24.7°C).
Average pressure in September
Waterloo, Trinidad and Tobago
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Waterloo, Trinidad and Tobago
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is May (17km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).
Average humidity in September
Waterloo, Trinidad and Tobago
- Average humidity in September: 76%
The months with the highest relative humidity are July, November and December (78%).
The months with the lowest relative humidity are March and April (74%).
Average rainfall in September
Waterloo, Trinidad and Tobago
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is August (97mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Waterloo, Trinidad and Tobago
- Average rainfall days in September: 18.8 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is April (11.6 days).
Average daylight in September /
Average sunshine in September
Waterloo, 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 1min
The months with the most sunshine are August and September (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Waterloo, Trinidad and Tobago
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is July (5.6 days).
Average UV index in September
Waterloo, 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
Waterloo, Trinidad and Tobago
- Average cloud cover in September: 27
The month with the most cloud cover is June (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in September
Waterloo, 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).
Waterloo, Trinidad and Tobago
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