September weather forecast
Arouca, Trinidad and Tobago

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Weather in September

The weather in Arouca, Trinidad and Tobago during September clocks in with slightly lower temperatures, signalling the onset of a steady decline as we head towards the end of the year. A slight drop in rainfall down to 78mm (3.07") accompanies this change, easing up on the previously dominating wet conditions. Warding off the surge in temperature observed in August, the skies tend to be clearer with decreased cloud coverage. The shift towards October maintains this general outline, seeing a further decline in rainfall levels.

Temperature

September, with its high-temperature average of 30.1°C (86.2°F) and a low-temperature average of 26.5°C (79.7°F), is the warmest month in Arouca.

Heat index

For most parts of September, the heat index is estimated at a sweltering 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Arouca, in September, during 19.9 rainfall days, 78mm (3.07") of precipitation is typically accumulated. Throughout the year, in Arouca, there are 194.8 rainfall days, and 640mm (25.2") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September in Arouca, 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

The average sunshine in September is 11h.

UV index

The months with the highest UV index in Arouca are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Arouca are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Feb 4, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the hottest time of year in Arouca?

In Arouca, Trinidad and Tobago, the peak temperatures are generally noted in September, averaging a high of 30.1°C (86.2°F) and a low of 26.5°C (79.7°F).

How hot does it get in Arouca in September?

The average high-temperature and low-temperature in Arouca during September are 30.1°C (86.2°F) and 26.5°C (79.7°F) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 37°C (98.6°F).

What is the average humidity in September in Arouca?

In September, the average relative humidity in Arouca is 77%.

How many days does it rain in September in Arouca?

In September, in Arouca, the rain falls for 19.9 days. Throughout September, 78mm (3.07") of precipitation is accumulated.

How many hours of daylight does Arouca have in September?

The average day length in September is 12h and 11min.

What time are sunrise and sunset in September in Arouca?

On the first day of September in Arouca, 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.

How many hours of sunshine does Arouca have in September?

The average sunshine duration in September in Arouca, Trinidad and Tobago, is 11h.

What is the month with the highest UV index in Arouca?

January through December, with an average maximum UV index of 7, are months with the highest UV index.

What is the month with the lowest UV index in Arouca?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Arouca, Trinidad and Tobago.

What is the UV index reading in September in Arouca?

In Arouca, Trinidad and Tobago, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in September
Arouca, Trinidad and Tobago

Average temperature in September - Arouca, 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
Arouca, Trinidad and Tobago

Average pressure in September - Arouca, 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
Arouca, Trinidad and Tobago

Average wind speed in September - Arouca, 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
Arouca, Trinidad and Tobago

Average humidity in September - Arouca, 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
Arouca, Trinidad and Tobago

Average rainfall in September - Arouca, 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
Arouca, Trinidad and Tobago

Average rainfall days in September - Arouca, 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
Arouca, Trinidad and Tobago

Average daylight in September / Average sunshine in September - Arouca, 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
Arouca, Trinidad and Tobago

Average sunshine days in September - Arouca, 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
Arouca, Trinidad and Tobago

Average UV index in September - Arouca, 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
Arouca, Trinidad and Tobago

Average cloud cover in September - Arouca, 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
Arouca, Trinidad and Tobago

Average visibility in September - Arouca, 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).

Arouca, Trinidad and Tobago

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