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
Stepping into December, San Juan de Los Cayos records an average high-temperature of a still moderately hot 27.1°C (80.8°F), almost consistent with November. The nights of December cool down to an average low of 24.3°C (75.7°F), subtly lower than daytime highs.Heat index
In December, the heat index is computed to be 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 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
In December, the average relative humidity is 79%.Rainfall
In San Juan de Los Cayos, during December, the rain falls for 13 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 165.1 rainfall days, and 551mm (21.69") of precipitation is accumulated.Daylight
With an average of 11h and 30min of daylight, December has the shortest days of the year in San Juan de Los Cayos.On the first day of December, sunrise is at 06:37 and sunset at 18:08. On the last day of the month, sunrise is at 06:52 and sunset at 18:21 -04.
Sunshine
In San Juan de Los Cayos, the average sunshine in December is 9.2h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 6 in December translates into the following instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the temperature in December in San Juan de Los Cayos?
What is the average humidity in December in San Juan de Los Cayos?
How many days does it rain in December in San Juan de Los Cayos?
What is the month with the shortest days in San Juan de Los Cayos?
What is the average length of the day in December in San Juan de Los Cayos?
When are sunrise and sunset in December in San Juan de Los Cayos?
How long on average sun shines in December in San Juan de Los Cayos?
What is the month with the lowest UV index in San Juan de Los Cayos?
How high is the UV index in December in San Juan de Los Cayos?
Average temperature in December
San Juan de Los Cayos, Venezuela
- Average high temperature in December: 27.1°C
The warmest month (with the highest average high temperature) is September (29.5°C).
The month with the lowest average high temperature is January (26.4°C).
- Average low temperature in December: 24.3°C
The months with the highest average low temperature are September and October (25.5°C).
The coldest month (with the lowest average low temperature) is February (23.1°C).
Average pressure in December
San Juan de Los Cayos, Venezuela
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is July (1013.4mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in December
San Juan de Los Cayos, Venezuela
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is February (14.5km/h).
The calmest months (with the lowest average wind speed) are October and November (9.9km/h).
Average humidity in December
San Juan de Los Cayos, Venezuela
- Average humidity in December: 79%
The months with the highest relative humidity are April, May, June and July (81%).
The month with the lowest relative humidity is September (76%).
Average rainfall in December
San Juan de Los Cayos, Venezuela
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is July (81mm).
The driest month (with the least rainfall) is February (5mm).
Average rainfall days in December
San Juan de Los Cayos, Venezuela
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (4.9 days).
Average daylight in December /
Average sunshine in December
San Juan de Los Cayos, Venezuela
- Average daylight in December: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 9h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 8h and 42min).
Average sunshine days in December
San Juan de Los Cayos, Venezuela
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is February (22.4 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
San Juan de Los Cayos, Venezuela
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).
Average cloud cover in December
San Juan de Los Cayos, Venezuela
- Average cloud cover in December: 26
The month with the most cloud cover is April (Cloud cover 34).
The months with the least cloud cover are January and September (Cloud cover 23).
Average visibility in December
San Juan de Los Cayos, Venezuela
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
San Juan de Los Cayos, Venezuela
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