Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Charlestown experiences a subtle adjustment in high-temperatures to a still moderately hot 27.6°C (81.7°F) with the onset of December, maintaining near parity with November's 28.2°C (82.8°F). In December, a low-temperature average of 26.5°C (79.7°F) is characteristic of Charlestown, marking a minor shift from daytime temperatures.Heat index
December's average heat index is estimated at a tropical 31°C (87.8°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in December is 76%.Rainfall
In Charlestown, during December, the rain falls for 19.5 days and regularly aggregates up to 39mm (1.54") of precipitation. In Charlestown, during the entire year, the rain falls for 238.6 days and collects up to 627mm (24.69") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 24min of daylight.On the first day of the month, sunrise is at 06:11 and sunset at 17:37. On the last day of December, in Charlestown, sunrise is at 06:26 and sunset at 17:50 AST.
Sunshine
December has the least sunshine of the year, with an average of 6.4h of sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 7 during December leads to these advisories:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Charlestown have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the highest UV index?
When is the lowest UV index in Charlestown?
What is the UV index reading in December in Charlestown?
Average temperature in December
Charlestown, 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).
Average pressure in December
Charlestown, 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).
Average wind speed in December
Charlestown, 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).
Average humidity in December
Charlestown, 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%).
Average rainfall in December
Charlestown, 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).
Average rainfall days in December
Charlestown, 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).
Average daylight in December /
Average sunshine in December
Charlestown, 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).
Average sunshine days in December
Charlestown, 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).
Average UV index in December
Charlestown, 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).
Average cloud cover in December
Charlestown, 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).
Average visibility in December
Charlestown, 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).
Charlestown, Saint Vincent and the Grenadines
Weather forecast for your location
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