September weather forecast
Georgetown, Saint Vincent and the Grenadines

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Weather in September

September represents a peculiar blend of the tropical conditions specific to Georgetown throughout the year. This month is characterized by longer hours of daylight, contrasted by increased rain and cloud cover. A notable climatic attribute is the observed average high temperature, which ascends slightly to 28.7°C (83.7°F). The month culminates the summer's heat, paving the way for the temperate and milder climate incoming in October.

Temperature

September, recording an average high temperature of 28.7°C (83.7°F) and a low temperature of 27.9°C (82.2°F), is Georgetown's warmest month.

Heat index

The heat index for September is computed to be a hot 33°C (91.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

In Georgetown, the average relative humidity in September is 76%.

Rainfall

In Georgetown, in September, it is raining for 14.9 days, with typically 26mm (1.02") of accumulated precipitation. In Georgetown, during the entire year, the rain falls for 164.4 days and collects up to 289mm (11.38") of precipitation.

Daylight

In Georgetown, the average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:15. On the last day of September, sunrise is at 05:53 and sunset at 17:54 AST.

Sunshine

In September, the average sunshine is 10.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 threat to health from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What time of the year is the hottest?

September is the month that records the highest temperatures, with averages ranging from a high of 28.7°C (83.7°F) to a low of 27.9°C (82.2°F).

How hot does it get in September?

In September, the average high-temperature and low-temperature in Georgetown are 28.7°C (83.7°F) and 27.9°C (82.2°F) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 33°C (91.4°F).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In Georgetown, in September, during 14.9 rainfall days, 26mm (1.02") of precipitation is typically accumulated.

How many hours of daylight does Georgetown have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 05:53 and sunset at 18:15. On the last day of the month, sunrise is at 05:53 and sunset at 17:54 AST.

How many hours of sunshine does Georgetown have in September?

In Georgetown, the average sunshine duration in September is 10.4h.

What is the month with the highest UV index?

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

When is the lowest UV index?

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

How high is the UV index in September?

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in September
Georgetown, Saint Vincent and the Grenadines

Average temperature in September - Georgetown, Saint Vincent and the Grenadines
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is September (28.7°C).
The month with the lowest average high temperature is February (26.3°C).

  • Average low temperature in September: 27.9°C

The month with the highest average low temperature is September (27.9°C).
The coldest month (with the lowest average low temperature) is January (25.3°C).

Average pressure in September
Georgetown, Saint Vincent and the Grenadines

Average pressure in September - Georgetown, Saint Vincent and the Grenadines
  • Average pressure in September: 1012.3mbar

The month with the highest atmospheric pressure is June (1014.6mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).

Average wind speed in September
Georgetown, Saint Vincent and the Grenadines

Average wind speed in September - Georgetown, Saint Vincent and the Grenadines
  • Average wind speed in September: 19.7km/h

The windiest month (with the highest average wind speed) is February (28.4km/h).
The calmest month (with the lowest average wind speed) is September (19.7km/h).

Average humidity in September
Georgetown, Saint Vincent and the Grenadines

Average humidity in September - Georgetown, Saint Vincent and the Grenadines
  • Average humidity in September: 76%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is February (75%).

Average rainfall in September
Georgetown, Saint Vincent and the Grenadines

Average rainfall in September - Georgetown, Saint Vincent and the Grenadines
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the least rainfall) is February (12mm).

Average rainfall days in September
Georgetown, Saint Vincent and the Grenadines

Average rainfall days in September - Georgetown, Saint Vincent and the Grenadines
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (8.7 days).

Average daylight in September /
Average sunshine in September
Georgetown, Saint Vincent and the Grenadines

Average daylight in September / Average sunshine in September - Georgetown, Saint Vincent and the Grenadines
  • 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 24min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in September
Georgetown, Saint Vincent and the Grenadines

Average sunshine days in September - Georgetown, Saint Vincent and the Grenadines
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is March (16.7 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in September
Georgetown, Saint Vincent and the Grenadines

Average UV index in September - Georgetown, Saint Vincent and the Grenadines
  • 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
Georgetown, Saint Vincent and the Grenadines

Average cloud cover in September - Georgetown, Saint Vincent and the Grenadines
  • Average cloud cover in September: 35

The month with the most cloud cover is June (Cloud cover 44).
The months with the least cloud cover are February and September (Cloud cover 35).

Average visibility in September
Georgetown, Saint Vincent and the Grenadines

Average visibility in September - Georgetown, Saint Vincent and the Grenadines
  • 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).

Georgetown, Saint Vincent and the Grenadines

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