December weather forecastGuatemala, Cuba
December
Weather in December
December, the first month of the winter in Guatemala, is also a moderately hot month, with an average temperature varying between 27.5°C (81.5°F) and 20.5°C (68.9°F).Temperature
Welcoming December, Guatemala notes an average high-temperature of a still moderately hot 27.5°C (81.5°F), nearly consistent with November's 28°C (82.4°F). In Guatemala, in December, the average low-temperature is a pleasant 20.5°C (68.9°F).Heat index
During December, the heat index is calculated to be a hot 31°C (87.8°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In Guatemala, the average relative humidity in December is 83%.Rainfall
In Guatemala, during December, the rain falls for 15.3 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 230.9 rainfall days, and 812mm (31.97") of precipitation is accumulated.Daylight
With an average of 10h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:23 and sunset at 17:20. On the last day of December, sunrise is at 06:38 and sunset at 17:32 CST.
Sunshine
In December, the average sunshine in Guatemala is 6.5h.UV index
January through April, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Guatemala. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 during December translates into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guatemala, Cuba
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (26.9°C).
- Average low temperature in December: 20.5°C
The months with the highest average low temperature are July and August (23.3°C).
The coldest month (with the lowest average low temperature) is January (19.7°C).
Average pressure in December
Guatemala, Cuba
- Average pressure in December: 1015.8mbar
The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).
Average wind speed in December
Guatemala, Cuba
- Average wind speed in December: 10.1km/h
The windiest months (with the highest average wind speed) are February and March (10.4km/h).
The calmest month (with the lowest average wind speed) is September (7.7km/h).
Average humidity in December
Guatemala, Cuba
- Average humidity in December: 83%
The month with the highest relative humidity is October (84%).
The month with the lowest relative humidity is March (78%).
Average rainfall in December
Guatemala, Cuba
- Average rainfall in December: 38mm
The wettest months (with the highest rainfall) are May and September (114mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days in December
Guatemala, Cuba
- Average rainfall days in December: 15.3 days
The month with the highest number of rainy days is October (25.3 days).
The month with the least rainy days is February (12.3 days).
Average daylight in December /
Average sunshine in December
Guatemala, Cuba
- Average daylight in December: 10h and 54min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 6h and 30min
The months with the most sunshine are July and August (Average sunshine: 11h and 12min).
The months with the least sunshine are January and November (Average sunshine: 6h and 18min).
Average sunshine days in December
Guatemala, Cuba
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is March (13.7 days).
The month with the least sunshine days is October (3.5 days).
Average UV index in December
Guatemala, Cuba
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 6).
Average cloud cover in December
Guatemala, Cuba
- Average cloud cover in December: 32
The months with the most cloud cover are January and November (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Guatemala, Cuba
- Average visibility in December: 9km
The month with the highest visibility is March (10km).
The month with the lowest visibility is October (8km).
