December weather forecastCerro de Ortega, Mexico
December
Weather in December
The first month of the winter, December, is still a hot month in Cerro de Ortega, Mexico, with an average temperature ranging between min 19.9°C (67.8°F) and max 30.2°C (86.4°F).Temperature
The beginning of December records an average high-temperature of a still hot 30.2°C (86.4°F), almost echoing the conditions of the previous month. An average low-temperature of 19.9°C (67.8°F) is anticipated throughout the nights during December.Heat index
The heat index for December is estimated at a sweltering 35°C (95°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. 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. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Cerro de Ortega, the average relative humidity in December is 67%.Rainfall
In December, the rain falls for 2 days. Throughout December, 5mm (0.2") of precipitation is accumulated. Throughout the year, there are 94.5 rainfall days, and 429mm (16.89") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 11h and 0min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 6:16 pm. On the last day of December, sunrise is at 7:27 am and sunset at 6:29 pm CST.
Sunshine
The months with the most sunshine are March, April and December, with an average of 9.9h of sunshine.UV index
The months with the lowest UV index are January through March, November 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 average individuals.Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cerro de Ortega, Mexico
- Average high temperature in December: 30.2°C
The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is February (29.8°C).
- Average low temperature in December: 19.9°C
The months with the highest average low temperature are June and August (23.3°C).
The coldest month (with the lowest average low temperature) is February (19°C).
Average pressure in December
Cerro de Ortega, Mexico
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are June and September (1011.3mbar).
Average wind speed in December
Cerro de Ortega, Mexico
- Average wind speed in December: 6.5km/h
The windiest months (with the highest average wind speed) are March and August (6.9km/h).
The calmest month (with the lowest average wind speed) is October (6.3km/h).
Average humidity in December
Cerro de Ortega, Mexico
- Average humidity in December: 67%
The months with the highest relative humidity are September and October (78%).
The month with the lowest relative humidity is April (59%).
Average rainfall in December
Cerro de Ortega, Mexico
- Average rainfall in December: 5mm
The wettest month (with the highest rainfall) is September (105mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days in December
Cerro de Ortega, Mexico
- Average rainfall days in December: 2 days
The month with the highest number of rainy days is September (17.4 days).
The month with the least rainy days is April (0.7 days).
Average daylight in December /
Average sunshine in December
Cerro de Ortega, Mexico
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 9h and 54min
The months with the most sunshine are March, April and December (Average sunshine: 9h and 54min).
The month with the least sunshine is September (Average sunshine: 9h and 6min).
Average sunshine days in December
Cerro de Ortega, Mexico
- Average sunshine days in December: 28.2 days
The month with the most sunshine days is March (29.9 days).
The month with the least sunshine days is September (10.6 days).
Average UV index in December
Cerro de Ortega, Mexico
- 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
Cerro de Ortega, Mexico
- Average cloud cover in December: 10
The month with the most cloud cover is September (Cloud cover 32).
The months with the least cloud cover are March and April (Cloud cover 7).
Average visibility in December
Cerro de Ortega, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).





