December weather forecast
Cheltenham, Saint Vincent and the Grenadines

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Weather in December

Cheltenham wraps up the year with December experiencing the lowest rainfall of 39mm (1.54"), signifying the onset of the dry season. The drop in temperatures and brief sunlight hours mirror the worldwide winter dynamics, creating a mild and comfortable climate. A steady breeze maintains the city's pleasant ambience throughout the month. Cheltenham's December weather lends itself to ending the year on a calm and serene note.

Temperature

The transition into December is marked with an average high-temperature of a still moderately hot 27.6°C (81.7°F), showing an insignificant shift from November's 28.2°C (82.8°F). Nighttime temperatures in Cheltenham hover around an average low of 26.5°C (79.7°F) in December, a slight descent from daytime highs.

Heat index

Throughout December, the heat index is calculated to be a tropical 31°C (87.8°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

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

Rainfall

In Cheltenham, Saint Vincent and the Grenadines, in December, during 19.5 rainfall days, 39mm (1.54") of precipitation is typically accumulated. In Cheltenham, Saint Vincent and the Grenadines, during the entire year, the rain falls for 238.6 days and collects up to 627mm (24.69") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 24min of daylight.
On the first day of December in Cheltenham, sunrise is at 06:11 and sunset at 17:36. On the last day of the month, sunrise is at 06:26 and sunset at 17:49 AST.

Sunshine

December has the least sunshine of the year in Cheltenham, with an average of 6.4h of sunshine.

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 in Cheltenham. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Fend off overexposure. Sun protection is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What is the average December temperature in Cheltenham?

The high-temperature, in December, in Cheltenham, records 27.6°C (81.7°F), while the low-temperature is 26.5°C (79.7°F). In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 31°C (87.8°F).

What is the average humidity in December in Cheltenham?

In December, the average relative humidity in Cheltenham, Saint Vincent and the Grenadines, is 76%.

How much does it rain in Cheltenham in December?

In December, the rain falls for 19.5 days. Throughout December, 39mm (1.54") of precipitation is accumulated.

What is the month with the shortest days in Cheltenham?

The month with the shortest days is December, with an average of 11h and 24min of daylight.

What is the average length of the day in December in Cheltenham?

The average day length in December in Cheltenham, Saint Vincent and the Grenadines, is 11h and 23min.

When are sunrise and sunset in December in Cheltenham?

In December, on the first day of the month, sunrise is at 06:11 and sunset at 17:36. On the last day of the month, in Cheltenham, sunrise is at 06:26 and sunset at 17:49 AST.

What is the month with the least sunshine in Cheltenham?

With an average of 6.4h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Cheltenham?

In December, the average sunshine duration in Cheltenham is 6.4h.

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

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 Cheltenham?

The months with the lowest UV index in Cheltenham, Saint Vincent and the Grenadines, are January through December, with an average maximum UV index of 7.

What is the UV index intensity in December in Cheltenham?

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

Average temperature in December
Cheltenham, Saint Vincent and the Grenadines

Average temperature in December - Cheltenham, Saint Vincent and the Grenadines
  • Average high temperature in December: 27.6°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 December: 26.5°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 December
Cheltenham, Saint Vincent and the Grenadines

Average pressure in December - Cheltenham, Saint Vincent and the Grenadines
  • Average pressure in December: 1012.9mbar

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 December
Cheltenham, Saint Vincent and the Grenadines

Average wind speed in December - Cheltenham, Saint Vincent and the Grenadines
  • Average wind speed in December: 27.8km/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 December
Cheltenham, Saint Vincent and the Grenadines

Average humidity in December - Cheltenham, 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
Cheltenham, Saint Vincent and the Grenadines

Average rainfall in December - Cheltenham, Saint Vincent and the Grenadines
  • Average rainfall in December: 39mm

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 December
Cheltenham, Saint Vincent and the Grenadines

Average rainfall days in December - Cheltenham, Saint Vincent and the Grenadines
  • Average rainfall days in December: 19.5 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 December /
Average sunshine in December
Cheltenham, Saint Vincent and the Grenadines

Average daylight in December / Average sunshine in December - Cheltenham, 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 2min

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 December
Cheltenham, Saint Vincent and the Grenadines

Average sunshine days in December - Cheltenham, Saint Vincent and the Grenadines
  • Average sunshine days in December: 6.2 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 December
Cheltenham, Saint Vincent and the Grenadines

Average UV index in December - Cheltenham, 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
Cheltenham, Saint Vincent and the Grenadines

Average cloud cover in December - Cheltenham, Saint Vincent and the Grenadines
  • Average cloud cover in December: 41

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 December
Cheltenham, Saint Vincent and the Grenadines

Average visibility in December - Cheltenham, 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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Cheltenham, Saint Vincent and the Grenadines

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