September weather forecast
Trois-Rivières, Martinique

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Weather in September

Trois-Rivières, Martinique sees September as a return to equilibrium after a balmy August. With a noticeable decline in temperature, averaging between 29.3°C (84.7°F) high to a 27°C (80.6°F) low, an overall calming effect is evident. Streets resonate with pleasant weather, pulsating with life. A significant decrease in wind speed to 18.6km/h (11.6mph), further adds to the tranquil ambiance. As daylight diminishes, nights draw out longer shadows, signalling the onset of the fall season.

Temperature

September stands out as Trois-Rivières's warmest month, with an average high-temperature of 29.3°C (84.7°F) and a low-temperature of 27°C (80.6°F).

Heat index

The heat index in September is calculated to be a tropical 34°C (93.2°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. 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 hold great significance to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In September, the average relative humidity is 75%.

Rainfall

September is the month with the most rainfall in Trois-Rivières. Rain falls for 21.8 days and accumulates 86mm (3.39") of precipitation.

Daylight

In September, the average length of the day in Trois-Rivières is 12h and 13min.
On the first day of September, sunrise is at 05:51 and sunset at 18:15. On the last day of the month, sunrise is at 05:53 and sunset at 17:53 AST.

Sunshine

In September, the average sunshine is 9.8h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Trois-Rivières. 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 ordinary individuals.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the warmest month in Trois-Rivières?

With its average high temperature of 29.3°C (84.7°F) and a low of 27°C (80.6°F), September is regarded as the warmest month in Trois-Rivières.

How hot does it get in Trois-Rivières in September?

In September, the average high-temperature and low-temperature in Trois-Rivières, Martinique, are 29.3°C (84.7°F) and 27°C (80.6°F) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is calculated to be 34°C (93.2°F).

What is the average humidity in September in Trois-Rivières?

In September, the average relative humidity is 75%.

What is the rainiest month in Trois-Rivières?

September is the month with the most rainfall. Rain falls for 21.8 days and accumulates 86mm (3.39") of precipitation.

How many days does it rain in September in Trois-Rivières?

In Trois-Rivières, Martinique, in September, it is raining for 21.8 days, with typically 86mm (3.39") of accumulated precipitation.

How many hours of daylight does Trois-Rivières have in September?

In September, the average day length in Trois-Rivières is 12h and 13min.

When is the sunrise / sunset in September in Trois-Rivières?

On the first day of September, sunrise is at 05:51 and sunset at 18:15. On the last day of the month, sunrise is at 05:53 and sunset at 17:53 AST.

How many hours of sunshine does Trois-Rivières have in September?

In September, the average sunshine duration is 9.8h.

When is the highest UV index in Trois-Rivières?

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

What is the month with the lowest UV index in Trois-Rivières?

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

How high is the UV index in September in Trois-Rivières?

The average daily maximum UV index in September in Trois-Rivières is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in September
Trois-Rivières, Martinique

Average temperature in September - Trois-Rivières, Martinique
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is September (29.3°C).
The month with the lowest average high temperature is February (26.8°C).

  • Average low temperature in September: 27°C

The months with the highest average low temperature are August and October (27.3°C).
The coldest month (with the lowest average low temperature) is March (24.8°C).

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Average pressure in September
Trois-Rivières, Martinique

Average pressure in September - Trois-Rivières, Martinique
  • Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is June (1015.3mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).

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Average wind speed in September
Trois-Rivières, Martinique

Average wind speed in September - Trois-Rivières, Martinique
  • Average wind speed in September: 18.6km/h

The windiest month (with the highest average wind speed) is January (26.2km/h).
The calmest month (with the lowest average wind speed) is September (18.6km/h).

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Average humidity in September
Trois-Rivières, Martinique

Average humidity in September - Trois-Rivières, Martinique
  • Average humidity in September: 75%

The month with the highest relative humidity is November (77%).
The months with the lowest relative humidity are January, February and March (74%).

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Average rainfall in September
Trois-Rivières, Martinique

Average rainfall in September - Trois-Rivières, Martinique
  • Average rainfall in September: 86mm

The wettest month (with the highest rainfall) is September (86mm).
The driest months (with the least rainfall) are February and March (25mm).

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Average rainfall days in September
Trois-Rivières, Martinique

Average rainfall days in September - Trois-Rivières, Martinique
  • Average rainfall days in September: 21.8 days

The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is March (17 days).

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Average daylight in September /
Average sunshine in September
Trois-Rivières, Martinique

Average daylight in September / Average sunshine in September - Trois-Rivières, Martinique
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in September
Trois-Rivières, Martinique

Average sunshine days in September - Trois-Rivières, Martinique
  • Average sunshine days in September: 4.3 days

The month with the most sunshine days is March (6.3 days).
The month with the least sunshine days is November (1.6 days).

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Average UV index in September
Trois-Rivières, Martinique

Average UV index in September - Trois-Rivières, Martinique
  • 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).

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Average cloud cover in September
Trois-Rivières, Martinique

Average cloud cover in September - Trois-Rivières, Martinique
  • Average cloud cover in September: 39

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 36).

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Average visibility in September
Trois-Rivières, Martinique

Average visibility in September - Trois-Rivières, Martinique
  • 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).

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Trois-Rivières, Martinique

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