September weather forecast
Friendship, Saint Vincent and the Grenadines

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Weather in September

September in Friendship brings a slight decrease in temperature, marking a transition into the cooler months ahead. The month receives a bountiful 81mm (3.19") of rainfall, a reduction from August, but still relatively high for the year. This is also the month where the gustiness of wind slows down to 28.8km/h (17.9mph), providing a welcome calmness. Even with these precipitation levels, the visibility stays at a perfect 10km (6.2mi), keeping the city's outdoor charm alive.

Temperature

The highest temperatures are recorded in September, with averages reaching a high of 28.8°C (83.8°F) and a low of 28°C (82.4°F).

Heat index

For most parts of September, the heat index is estimated at a tropical 33°C (91.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

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

Rainfall

In Friendship, in September, during 21.4 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Friendship, during the entire year, the rain falls for 238.6 days and collects up to 627mm (24.69") of precipitation.

Daylight

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, in Friendship, Saint Vincent and the Grenadines, sunrise is at 05:54 and sunset at 17:55 AST.

Sunshine

In September, the average sunshine in Friendship is 10h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What is the warmest month in Friendship?

Friendship's September weather reaches an average high of 28.8°C (83.8°F) and an average low of 28°C (82.4°F), making it the warmest month.

How hot is it in Friendship in September?

September temperatures in Friendship vary between a high-temperature of 28.8°C (83.8°F) and a low-temperature of 28°C (82.4°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 33°C (91.4°F).

What is the average humidity in September in Friendship?

In September, the average relative humidity in Friendship, Saint Vincent and the Grenadines, is 76%.

How many days does it rain in September in Friendship?

In Friendship, Saint Vincent and the Grenadines, during September, the rain falls for 21.4 days and regularly aggregates up to 81mm (3.19") of precipitation.

How many hours of daylight does Friendship have in September?

In September, the average day length in Friendship, Saint Vincent and the Grenadines, is 12h and 12min.

What time are sunrise and sunset in September in Friendship?

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 05:54 and sunset at 17:55 AST.

How long on average sun shines in September in Friendship?

In September, the average sunshine duration in Friendship, Saint Vincent and the Grenadines, is 10h.

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

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

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

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

How high is the UV index in September in Friendship?

The average daily maximum UV index in September in Friendship, Saint Vincent and the Grenadines, is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.

Average temperature in September
Friendship, Saint Vincent and the Grenadines

Average temperature in September - Friendship, Saint Vincent and the Grenadines
  • Average high temperature in September: 28.8°C

The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is February (26.5°C).

  • Average low temperature in September: 28°C

The month with the highest average low temperature is September (28°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).

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Average pressure in September
Friendship, Saint Vincent and the Grenadines

Average pressure in September - Friendship, Saint Vincent and the Grenadines
  • Average pressure in September: 1012.2mbar

The month with the highest atmospheric pressure is June (1014.5mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).

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

Average wind speed in September - Friendship, Saint Vincent and the Grenadines
  • Average wind speed in September: 20.6km/h

The windiest month (with the highest average wind speed) is February (29.3km/h).
The calmest month (with the lowest average wind speed) is September (20.6km/h).

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Average humidity in September
Friendship, Saint Vincent and the Grenadines

Average humidity in September - Friendship, 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%).

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Average rainfall in September
Friendship, Saint Vincent and the Grenadines

Average rainfall in September - Friendship, Saint Vincent and the Grenadines
  • Average rainfall in September: 81mm

The wettest month (with the highest rainfall) is August (94mm).
The driest month (with the least rainfall) is February (23mm).

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

Average rainfall days in September - Friendship, Saint Vincent and the Grenadines
  • Average rainfall days in September: 21.4 days

The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is February (14.8 days).

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

Average daylight in September / Average sunshine in September - Friendship, 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 0min

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

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

Average sunshine days in September - Friendship, Saint Vincent and the Grenadines
  • Average sunshine days in September: 5.4 days

The months with the most sunshine days are February and March (9.3 days).
The month with the least sunshine days is July (1.7 days).

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

Average UV index in September - Friendship, 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).

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Average cloud cover in September
Friendship, Saint Vincent and the Grenadines

Average cloud cover in September - Friendship, Saint Vincent and the Grenadines
  • Average cloud cover in September: 38

The month with the most cloud cover is July (Cloud cover 46).
The months with the least cloud cover are January and February (Cloud cover 37).

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Average visibility in September
Friendship, Saint Vincent and the Grenadines

Average visibility in September - Friendship, 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).

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Friendship, Saint Vincent and the Grenadines

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