December weather forecastDiamond Valley, Barbados
December
Weather in December
December, the first month of the winter in Diamond Valley, is also a moderately hot month, with temperature in the range of an average high of 27.6°C (81.7°F) and an average low of 26.5°C (79.7°F).Temperature
The onset of December marks an average high-temperature of a still warm 27.6°C (81.7°F), hardly differing from November's 28.2°C (82.8°F). Diamond Valley's December nights witness minimal differential from the daytime temperatures, with averages of 26.5°C (79.7°F).Heat index
December's mean heat index is appraised at a tropical 31°C (87.8°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In Diamond Valley, the average relative humidity in December is 76%.Rainfall
In Diamond Valley, in December, it is raining for 16.2 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, there are 234.1 rainfall days, and 709mm (27.91") of precipitation is accumulated.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 06:04 and sunset at 17:29. On the last day of December, sunrise is at 06:19 and sunset at 17:42 AST.
Sunshine
With an average of 6.5h of sunshine, December has the least sunshine of the year in Diamond Valley.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Diamond Valley. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Diamond Valley. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Diamond Valley, Barbados
- Average high temperature in December: 27.6°C
The warmest month (with the highest average high temperature) is September (29°C).
The month with the lowest average high temperature is February (26.8°C).
- Average low temperature in December: 26.5°C
The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).
Average pressure in December
Diamond Valley, Barbados
- Average pressure in December: 1013mbar
The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in December
Diamond Valley, Barbados
- Average wind speed in December: 26.9km/h
The windiest months (with the highest average wind speed) are January and February (28.3km/h).
The calmest month (with the lowest average wind speed) is September (19.2km/h).
Average humidity in December
Diamond Valley, Barbados
- Average humidity in December: 76%
The months with the highest relative humidity are June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).
Average rainfall in December
Diamond Valley, Barbados
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days in December
Diamond Valley, Barbados
- Average rainfall days in December: 16.2 days
The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (11.3 days).
Average daylight in December /
Average sunshine in December
Diamond Valley, Barbados
- Average daylight in December: 11h and 24min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Diamond Valley, Barbados
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is February (14.3 days).
The month with the least sunshine days is July (1.3 days).
Average UV index in December
Diamond Valley, Barbados
- 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
Diamond Valley, Barbados
- Average cloud cover in December: 41
The month with the most cloud cover is June (Cloud cover 49).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility in December
Diamond Valley, Barbados
- 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).





