September weather forecast
Garrand, Saint Lucia

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Weather in September

September presents a change in Garrand's weather situation with a drop in rainfall to 63mm (2.48"). Temperatures rise slightly to peak at 30.3°C (86.5°F), heralding the warmest month of the year. The month showcases a reduction in both wind speed and daylight hours. On the upside, the cloud cover decreases, allowing a clearer sky. The unique impact of September is the blend of high temperatures and lower precipitation, making the city feel warmer.

Temperature

Garrand's September weather reaches an average high of 30.3°C (86.5°F) and an average low of 27°C (80.6°F), making it the warmest month.

Heat index

September's heat index is calculated to be a very hot 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 largely significant 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.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

January through March and September, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Garrand, Saint Lucia, during September, the rain falls for 20.3 days and regularly aggregates up to 63mm (2.48") of precipitation. In Garrand, Saint Lucia, during the entire year, the rain falls for 255.2 days and collects up to 560mm (22.05") of precipitation.

Daylight

In Garrand, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:51 and sunset at 18:14. On the last day of September, in Garrand, sunrise is at 05:53 and sunset at 17:53 AST.

Sunshine

In Garrand, Saint Lucia, the average sunshine in September is 9.6h.

UV index

The months with the highest UV index in Garrand, Saint Lucia, are January through May, July through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the hottest time of year in Garrand?

With average high temperatures of 30.3°C (86.5°F) and lows of 27°C (80.6°F), September is the warmest month in Garrand, Saint Lucia.

How hot is September in Garrand?

In Garrand, 30.3°C (86.5°F) is the average high-temperature and 27°C (80.6°F) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 37°C (98.6°F).

What are the least humid months in Garrand?

The months with the lowest humidity are January through March and September, with an average relative humidity of 73%.

What is the average humidity in September in Garrand?

In Garrand, Saint Lucia, the average relative humidity in September is 73%.

How much does it rain in Garrand in September?

In Garrand, Saint Lucia, during September, the rain falls for 20.3 days and regularly aggregates up to 63mm (2.48") of precipitation.

What is the average length of the day in September in Garrand?

In September, the average day length is 12h and 13min.

When are sunrise and sunset in September in Garrand?

In September, on the first day of the month, sunrise is at 05:51 and sunset at 18:14. On the last day of the month, in Garrand, Saint Lucia, sunrise is at 05:53 and sunset at 17:53 AST.

How many hours of sunshine does Garrand have in September?

The average sunshine duration in September in Garrand is 9.6h.

When is the highest UV index in Garrand?

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

How high is the UV index in September in Garrand?

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in September
Garrand, Saint Lucia

Average temperature in September - Garrand, Saint Lucia
  • Average high temperature in September: 30.3°C

The warmest month (with the highest average high temperature) is September (30.3°C).
The months with the lowest average high temperature are January and February (27.5°C).

  • Average low temperature in September: 27°C

The month with the highest average low temperature is October (27.2°C).
The coldest month (with the lowest average low temperature) is March (25°C).

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Average pressure in September
Garrand, Saint Lucia

Average pressure in September - Garrand, Saint Lucia
  • Average pressure in September: 1012.6mbar

The month with the highest atmospheric pressure is June (1015mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).

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Average wind speed in September
Garrand, Saint Lucia

Average wind speed in September - Garrand, Saint Lucia
  • Average wind speed in September: 16.7km/h

The windiest month (with the highest average wind speed) is February (24.7km/h).
The calmest month (with the lowest average wind speed) is September (16.7km/h).

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Average humidity in September
Garrand, Saint Lucia

Average humidity in September - Garrand, Saint Lucia
  • Average humidity in September: 73%

The months with the highest relative humidity are May, June, July, August and November (75%).
The months with the lowest relative humidity are January, February, March and September (73%).

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Average rainfall in September
Garrand, Saint Lucia

Average rainfall in September - Garrand, Saint Lucia
  • Average rainfall in September: 63mm

The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (19mm).

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Average rainfall days in September
Garrand, Saint Lucia

Average rainfall days in September - Garrand, Saint Lucia
  • Average rainfall days in September: 20.3 days

The month with the highest number of rainy days is July (26.5 days).
The month with the least rainy days is February (16.4 days).

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Average daylight in September /
Average sunshine in September
Garrand, Saint Lucia

Average daylight in September / Average sunshine in September - Garrand, Saint Lucia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is April (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in September
Garrand, Saint Lucia

Average sunshine days in September - Garrand, Saint Lucia
  • Average sunshine days in September: 5.2 days

The month with the most sunshine days is January (7.8 days).
The month with the least sunshine days is July (0.8 days).

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Average UV index in September
Garrand, Saint Lucia

Average UV index in September - Garrand, Saint Lucia
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).

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Average cloud cover in September
Garrand, Saint Lucia

Average cloud cover in September - Garrand, Saint Lucia
  • Average cloud cover in September: 40

The months with the most cloud cover are June and July (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 38).

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Average visibility in September
Garrand, Saint Lucia

Average visibility in September - Garrand, Saint Lucia
  • 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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Garrand, Saint Lucia

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