December weather forecast
Georgetown, Saint Vincent and the Grenadines

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Weather in December

December brings about significant modifications in the climatic ambiance of Georgetown. The tropical city ushers in cooler temperatures, and the breezes become more gentle. The monthly average temperature drops slightly to 27.4°C (81.3°F), a welcome respite from the previous months' heat. The month exhibits a balanced blend of rain and sun, with nature tuning its orchestra towards a more harmonious climate. Consequently, December sets the pace for the weather cycle to restart, leading into January with similar conditions.

Temperature

December's beginning signals an average high-temperature of a still warm 27.4°C (81.3°F), barely different from November's 27.9°C (82.2°F). Georgetown experiences a subtle drop in temperature during the December nights, recording an average of 26.4°C (79.5°F).

Heat index

Throughout December, the heat index is estimated at a tropical 30°C (86°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

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

Rainfall

In Georgetown, during December, the rain falls for 14.9 days and regularly aggregates up to 23mm (0.91") of precipitation. In Georgetown, during the entire year, the rain falls for 164.4 days and collects up to 289mm (11.38") of precipitation.

Daylight

December has the shortest days of the year in Georgetown, with an average of 11h and 24min of daylight.
On the first day of the month, sunrise is at 06:11 and sunset at 17:35. On the last day of December, sunrise is at 06:26 and sunset at 17:48 AST.

Sunshine

The month with the least sunshine in Georgetown is December, with an average of 6.6h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Georgetown. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Evade overexposure. Individuals with fair skin risk burning 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What are the temperatures in Georgetown in December?

December temperatures vary between a high-temperature of 27.4°C (81.3°F) and a low-temperature of 26.4°C (79.5°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 30°C (86°F).

What is the average humidity in December in Georgetown?

The average relative humidity in December in Georgetown is 76%.

How much does it rain in Georgetown in December?

In Georgetown, Saint Vincent and the Grenadines, in December, during 14.9 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

What is the month with the shortest days in Georgetown?

With an average of 11h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Georgetown have in December?

The average day length in December in Georgetown, Saint Vincent and the Grenadines, is 11h and 22min.

What time are sunrise and sunset in December in Georgetown?

On the first day of December, sunrise is at 06:11 and sunset at 17:35. On the last day of the month, sunrise is at 06:26 and sunset at 17:48 AST.

What is the month with the least sunshine in Georgetown?

With an average of 6.6h of sunshine, December has the least sunshine of the year in Georgetown, Saint Vincent and the Grenadines.

How many hours of sunshine does Georgetown have in December?

In December, the average sunshine duration in Georgetown is 6.6h.

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

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

When is the lowest UV index in Georgetown?

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

How high is the UV index in December in Georgetown?

In December, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Average temperature in December
Georgetown, Saint Vincent and the Grenadines

Average temperature in December - Georgetown, Saint Vincent and the Grenadines
  • Average high temperature in December: 27.4°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 December: 26.4°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).

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Average pressure in December
Georgetown, Saint Vincent and the Grenadines

Average pressure in December - Georgetown, Saint Vincent and the Grenadines
  • Average pressure in December: 1013mbar

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

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

Average wind speed in December - Georgetown, Saint Vincent and the Grenadines
  • Average wind speed in December: 26.6km/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).

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Average humidity in December
Georgetown, Saint Vincent and the Grenadines

Average humidity in December - Georgetown, Saint Vincent and the Grenadines
  • Average humidity in December: 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 December
Georgetown, Saint Vincent and the Grenadines

Average rainfall in December - Georgetown, Saint Vincent and the Grenadines
  • Average rainfall in December: 23mm

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

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

Average rainfall days in December - Georgetown, Saint Vincent and the Grenadines
  • Average rainfall days in December: 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).

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

Average daylight in December / Average sunshine in December - Georgetown, Saint Vincent and the Grenadines
  • Average daylight in December: 11h and 2min

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 December: 6h and 4min

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).

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

Average sunshine days in December - Georgetown, Saint Vincent and the Grenadines
  • Average sunshine days in December: 12.8 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).

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

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

Average cloud cover in December - Georgetown, Saint Vincent and the Grenadines
  • Average cloud cover in December: 40

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).

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Average visibility in December
Georgetown, Saint Vincent and the Grenadines

Average visibility in December - Georgetown, Saint Vincent and the Grenadines
  • Average visibility in December: 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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Georgetown, Saint Vincent and the Grenadines

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