September weather forecast
Rivière-Salée, Martinique

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Weather in September

In September, rain continues to remain a primary aspect of the weather in Rivière-Salée, though it begins to moderate towards the end. There is a gradual decrease in daylight hours as the summer fades and Autumn steps closer. Cloud coverage lessens slightly but the skies remain predominantly cloudy. Atmospheric pressure drops the lowest it has been all year, suggesting a possibility of erratic weather events. Despite this, the mild temperature range helps maintain a pleasant environment overall.

Temperature

September, marked by an average high-temperature of 29.3°C (84.7°F) and a low-temperature of 27°C (80.6°F), is the warmest month in Rivière-Salée.

Heat index

During September, the heat index is evaluated at a hot 34°C (93.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in September is 75%.

Rainfall

The month with the most rainfall in Rivière-Salée, Martinique, is September, when the rain falls for 21.8 days and typically aggregates up to 86mm (3.39") of precipitation.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of September in Rivière-Salée, Martinique, 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

The average sunshine in September is 9.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Rivière-Salée. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during September translates into the following guidance:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What time of the year is the hottest in Rivière-Salée?

The warmest period in Rivière-Salée is September, when temperatures fluctuate between an average high of 29.3°C (84.7°F) and a low of 27°C (80.6°F).

How hot does it get in Rivière-Salée in September?

In Rivière-Salée, in September, the average high-temperature is 29.3°C (84.7°F), and the average low-temperature is 27°C (80.6°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is evaluated at 34°C (93.2°F).

What is the average humidity in September in Rivière-Salée?

The average relative humidity in September in Rivière-Salée is 75%.

What is the wettest month in Rivière-Salée?

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

How many days does it rain in September in Rivière-Salée?

In Rivière-Salée, in September, during 21.8 rainfall days, 86mm (3.39") of precipitation is typically accumulated.

What is the average length of the day in September in Rivière-Salée?

In Rivière-Salée, Martinique, the average day length in September is 12h and 13min.

What time are sunrise and sunset in September in Rivière-Salée?

In September, on the first day of the month, sunrise is at 05:51 and sunset at 18:15. On the last day of the month, in Rivière-Salée, Martinique, sunrise is at 05:53 and sunset at 17:53 AST.

How long on average sun shines in September in Rivière-Salée?

In September, the average sunshine duration in Rivière-Salée, Martinique, is 9.8h.

What is the month with the highest UV index in Rivière-Salée?

The months with the highest UV index in Rivière-Salée are January through December, with an average maximum UV index of 7.

What is the month with the lowest UV index in Rivière-Salée?

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

What is the UV index intensity in September in Rivière-Salée?

The average daily maximum UV index in September in Rivière-Salée, Martinique, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in September
Rivière-Salée, Martinique

Average temperature in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average pressure in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average wind speed in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average humidity in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average rainfall in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average rainfall days in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average daylight in September / Average sunshine in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average sunshine days in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average UV index in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average cloud cover in September - Rivière-Salée, 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
Rivière-Salée, Martinique

Average visibility in September - Rivière-Salée, 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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Rivière-Salée, Martinique

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