December weather forecastCoatepeque, Guatemala
December
Weather in December
December, the first month of the winter in Coatepeque, is also a hot month, with an average temperature varying between 30.5°C (86.9°F) and 19.5°C (67.1°F).Temperature
The arrival of December records an average high-temperature of a still tropical 30.5°C (86.9°F), closely related to the 30.2°C (86.4°F) observed in November. Coatepeque, during the nights of December, experiences an average temperature drop to a refreshing 19.5°C (67.1°F).Heat index
For December, the heat index is appraised at a sweltering 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In Coatepeque, Guatemala, the average relative humidity in December is 64%.Rainfall
In Coatepeque, in December, it is raining for 7.6 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 222.6 rainfall days, and 1301mm (51.22") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 11h and 18min of daylight.On the first day of December, sunrise is at 06:17 and sunset at 17:36. On the last day of the month, sunrise is at 06:32 and sunset at 17:49 CST.
Sunshine
In December, the average sunshine is 7.6h.UV index
The months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 during December translates into the following guidance:
Beware of overexposure. Fair-skinned individuals risk burning 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
Coatepeque, Guatemala
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is April (32.5°C).
The month with the lowest average high temperature is October (29.8°C).
- Average low temperature in December: 19.5°C
The month with the highest average low temperature is May (22.7°C).
The coldest month (with the lowest average low temperature) is December (19.5°C).
Average pressure in December
Coatepeque, Guatemala
- Average pressure in December: 1013.7mbar
The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is October (1012mbar).
Average wind speed in December
Coatepeque, Guatemala
- Average wind speed in December: 6.1km/h
The windiest month (with the highest average wind speed) is March (6.7km/h).
The calmest months (with the lowest average wind speed) are May, June, September and October (5.5km/h).
Average humidity in December
Coatepeque, Guatemala
- Average humidity in December: 64%
The month with the highest relative humidity is October (78%).
The months with the lowest relative humidity are January, February and March (59%).
Average rainfall in December
Coatepeque, Guatemala
- Average rainfall in December: 21mm
The wettest month (with the highest rainfall) is May (261mm).
The driest months (with the least rainfall) are January and February (11mm).
Average rainfall days in December
Coatepeque, Guatemala
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is February (5.3 days).
Average daylight in December /
Average sunshine in December
Coatepeque, Guatemala
- Average daylight in December: 11h and 18min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in December: 7h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 30min).
Average sunshine days in December
Coatepeque, Guatemala
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is September (1.4 days).
Average UV index in December
Coatepeque, Guatemala
- Average UV index in December: 6
The months with the highest UV index are February, March, April and July (UV index 7).
The months with the lowest UV index are January, May, June, August, September, October, November and December (UV index 6).
Average cloud cover in December
Coatepeque, Guatemala
- Average cloud cover in December: 12
The month with the most cloud cover is June (Cloud cover 34).
The month with the least cloud cover is January (Cloud cover 11).
Average visibility in December
Coatepeque, Guatemala
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
