October weather forecast
Charlotte Amalie, VI

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The Charlotte Amalie Harbour within the United States Virgin Islands
The Charlotte Amalie Harbour within the United States Virgin Islands

Weather in October

In October, Charlotte Amalie begins to gradually shake off the vestiges of the summer humidity. Rainfall remains consistent from September, keeping the landscapes fresh and vibrant. The slowly dropping sea temperatures signal the approach of the cooler months. The daylight hours begin to dwindle, setting an earlier curtain call for the sun. As the month progresses, subtle changes in weather build anticipation for the chillier closing months of the year.

Temperature

October brings an average high-temperature of a still moderately hot 83.7°F (28.7°C), nearly identical to the preceding month. Charlotte Amalie registers a gentle descent to an average nighttime low of 81.5°F (27.5°C) in October from its daytime highs.

Heat index

The heat index value during October is appraised at a tropical 91.4°F (33°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The months with the lowest humidity are January through March, October through December, with an average relative humidity of 75%.

Rainfall

In Charlotte Amalie, in October, during 23.6 rainfall days, 4.37" (111mm) of precipitation is typically accumulated. In Charlotte Amalie, during the entire year, the rain falls for 253.1 days and collects up to 33.27" (845mm) of precipitation.

Ocean temperature

In Charlotte Amalie, the average seawater temperature in October is 84.6°F (29.2°C).
Note: Water temperature ranging between 77°F (25°C) and 84.2°F (29°C) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

In October, the average length of the day is 11h and 43min.
On the first day of October, sunrise is at 6:10 am and sunset at 6:08 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 5:47 pm AST.

Sunshine

In Charlotte Amalie, the average sunshine in October is 7.4h.

UV index

The months with the highest UV index in Charlotte Amalie, United States Virgin Islands, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Charlotte Amalie, United States Virgin Islands, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 7 during October translates into these guidelines:
Fend off overexposure. Sun protection is vital. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Heed this! UV intensity is much stronger when reflected off sand and water.

Frequently asked questions

Is it hot in Charlotte Amalie during October?

In Charlotte Amalie, in October, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 81.5°F (27.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in October is appraised at 91.4°F (33°C).

What are the least humid months in Charlotte Amalie?

The months with the lowest humidity are January through March, October through December, with an average relative humidity of 75%.

What is the average humidity in October in Charlotte Amalie?

In Charlotte Amalie, the average relative humidity in October is 75%.

How much does it rain in Charlotte Amalie in October?

In October, in Charlotte Amalie, United States Virgin Islands, the rain falls for 23.6 days. Throughout October, 4.37" (111mm) of precipitation is accumulated.

What is the water temperature in October in Charlotte Amalie?

In Charlotte Amalie, United States Virgin Islands, in October, the average water temperature is 84.6°F (29.2°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in October in Charlotte Amalie?

In Charlotte Amalie, United States Virgin Islands, the average day length in October is 11h and 43min.

When are sunrise and sunset in October in Charlotte Amalie?

In October, on the first day of the month, sunrise is at 6:10 am and sunset at 6:08 pm. On the last day of the month, in Charlotte Amalie, sunrise is at 6:19 am and sunset at 5:47 pm AST.

How long on average sun shines in October in Charlotte Amalie?

The average sunshine duration in October in Charlotte Amalie, United States Virgin Islands, is 7.4h.

When is the highest UV index in Charlotte Amalie?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Charlotte Amalie, United States Virgin Islands.

What is the month with the lowest UV index in Charlotte Amalie?

The months with the lowest UV index in Charlotte Amalie, United States Virgin Islands, are January through December, with an average maximum UV index of 7.

What is the UV index reading in October in Charlotte Amalie?

In October, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in October
Charlotte Amalie, VI

Average temperature in October - Charlotte Amalie, VI
  • Average high temperature in October: 83.7°F

The warmest month (with the highest average high temperature) is September (84°F).
The month with the lowest average high temperature is March (78.4°F).

  • Average low temperature in October: 81.5°F

The month with the highest average low temperature is October (81.5°F).
The coldest month (with the lowest average low temperature) is March (75.7°F).

Average pressure in October
Charlotte Amalie, VI

Average pressure in October - Charlotte Amalie, VI
  • Average pressure in October: 29.91"Hg

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The months with the lowest atmospheric pressure are October and November (29.91"Hg).

Average wind speed in October
Charlotte Amalie, VI

Average wind speed in October - Charlotte Amalie, VI
  • Average wind speed in October: 11.1mph

The windiest month (with the highest average wind speed) is July (15mph).
The calmest month (with the lowest average wind speed) is October (11.1mph).

Average humidity in October
Charlotte Amalie, VI

Average humidity in October - Charlotte Amalie, VI
  • Average humidity in October: 75%

The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are January, February, March, October, November and December (75%).

Average rainfall in October
Charlotte Amalie, VI

Average rainfall in October - Charlotte Amalie, VI
  • Average rainfall in October: 4.37"

The wettest month (with the highest rainfall) is September (4.45").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in October
Charlotte Amalie, VI

Average rainfall days in October - Charlotte Amalie, VI
  • Average rainfall days in October: 23.6 days

The month with the highest number of rainy days is November (25.5 days).
The months with the least rainy days are February, March and June (18.2 days).

Average sea temperature in October
Charlotte Amalie, VI

Average sea temperature in October - Charlotte Amalie, VI
  • Average sea temperature in October: 84.5°F

The best month for swimming (with the highest average sea temperature) is September (85°F).
The coldest month (with the lowest average sea temperature) is February (78.7°F).

Average daylight in October /
Average sunshine in October
Charlotte Amalie, VI

Average daylight in October / Average sunshine in October - Charlotte Amalie, VI
  • Average daylight in October: 11h and 4min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in October: 7h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

Average sunshine days in October
Charlotte Amalie, VI

Average sunshine days in October - Charlotte Amalie, VI
  • Average sunshine days in October: 4.5 days

The months with the most sunshine days are March and April (7.3 days).
The month with the least sunshine days is November (2.4 days).

Average UV index in October
Charlotte Amalie, VI

Average UV index in October - Charlotte Amalie, VI
  • Average UV index in October: 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 October
Charlotte Amalie, VI

Average cloud cover in October - Charlotte Amalie, VI
  • Average cloud cover in October: 35

The months with the most cloud cover are May and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 33).

Average visibility in October
Charlotte Amalie, VI

Average visibility in October - Charlotte Amalie, VI
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Charlotte Amalie, United States Virgin Islands, USA

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