December weather forecastSan Carlos, Cuba
December
Weather in December
December, the first month of the winter in San Carlos, is still a warm month, with an average temperature varying between 28.3°C (82.9°F) and 21.2°C (70.2°F).Temperature
The average high-temperature during December registers at a still moderately hot 28.3°C (82.9°F), maintaining a close resemblance to the previous month. An average temperature of 21.2°C (70.2°F) marks the nights in December.Heat index
Throughout December, the heat index is computed to be a tropical 33°C (91.4°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. 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. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital 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
The average relative humidity in December is 80%.Rainfall
In San Carlos, in December, it is raining for 11.9 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 209 rainfall days, and 646mm (25.43") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 54min of daylight.On the first day of the month, sunrise is at 06:19 and sunset at 17:19. On the last day of December, sunrise is at 06:35 and sunset at 17:32 CST.
Sunshine
In San Carlos, Cuba, the average sunshine in December is 7.2h.UV index
January through March, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 6 in December translates into the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Carlos, Cuba
- Average high temperature in December: 28.3°C
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (27.9°C).
- Average low temperature in December: 21.2°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is February (20°C).
Average pressure in December
San Carlos, Cuba
- Average pressure in December: 1015.4mbar
The month with the highest atmospheric pressure is January (1016.5mbar).
The month with the lowest atmospheric pressure is October (1012mbar).
Average wind speed in December
San Carlos, Cuba
- Average wind speed in December: 9.8km/h
The windiest months (with the highest average wind speed) are February and December (9.8km/h).
The calmest months (with the lowest average wind speed) are September and October (7.4km/h).
Average humidity in December
San Carlos, Cuba
- Average humidity in December: 80%
The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
San Carlos, Cuba
- Average rainfall in December: 24mm
The wettest months (with the highest rainfall) are May and September (95mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days in December
San Carlos, Cuba
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is October (23.9 days).
The month with the least rainy days is February (9 days).
Average daylight in December /
Average sunshine in December
San Carlos, Cuba
- Average daylight in December: 10h and 54min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 7h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in December
San Carlos, Cuba
- Average sunshine days in December: 14 days
The month with the most sunshine days is December (14 days).
The month with the least sunshine days is May (4.6 days).
Average UV index in December
San Carlos, Cuba
- Average UV index in December: 6
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in December
San Carlos, Cuba
- Average cloud cover in December: 23
The months with the most cloud cover are May and October (Cloud cover 28).
The months with the least cloud cover are February and August (Cloud cover 21).
Average visibility in December
San Carlos, Cuba
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (10km).
The months with the lowest visibility are May and October (9km).





