December weather forecastCiudad Altamirano, Mexico
December
Weather in December
December, the first month of the winter in Ciudad Altamirano, is also a moderately hot month, with an average temperature varying between 28.5°C (83.3°F) and 21.5°C (70.7°F).Temperature
In Ciudad Altamirano, December records the lowest average temperatures, peaking at 28.5°C (83.3°F) and reaching a low of 21.5°C (70.7°F).Heat index
The heat index in December is calculated to be a tropical 31°C (87.8°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In December, the average relative humidity is 68%.Rainfall
In December, the rain falls for 3.6 days. Throughout December, 4mm (0.16") of precipitation is accumulated. In Ciudad Altamirano, during the entire year, the rain falls for 147.5 days and collects up to 615mm (24.21") of precipitation.Daylight
December has the shortest days of the year in Ciudad Altamirano, with an average of 11h and 6min of daylight.On the first day of December in Ciudad Altamirano, sunrise is at 6:58 am and sunset at 6:05 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:17 pm CST.
Sunshine
The months with the most sunshine are January through May and December, with an average of 9.9h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ciudad Altamirano, Mexico
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is May (30.5°C).
The month with the lowest average high temperature is December (28.5°C).
- Average low temperature in December: 21.5°C
The month with the highest average low temperature is June (23.8°C).
The coldest month (with the lowest average low temperature) is February (20.8°C).
Average pressure in December
Ciudad Altamirano, Mexico
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The months with the lowest atmospheric pressure are May, June and September (1010.6mbar).
Average wind speed in December
Ciudad Altamirano, Mexico
- Average wind speed in December: 7.2km/h
The windiest months (with the highest average wind speed) are March and September (8km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in December
Ciudad Altamirano, Mexico
- Average humidity in December: 68%
The months with the highest relative humidity are September and October (78%).
The month with the lowest relative humidity is April (58%).
Average rainfall in December
Ciudad Altamirano, Mexico
- Average rainfall in December: 4mm
The wettest month (with the highest rainfall) is September (182mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in December
Ciudad Altamirano, Mexico
- Average rainfall days in December: 3.6 days
The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is February (1.6 days).
Average daylight in December /
Average sunshine in December
Ciudad Altamirano, Mexico
- Average daylight in December: 11h and 6min
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 6min).
- Average sunshine in December: 9h and 54min
The months with the most sunshine are January, February, March, April, May and December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 8h and 54min).
Average sunshine days in December
Ciudad Altamirano, Mexico
- Average sunshine days in December: 24.7 days
The month with the most sunshine days is March (28.9 days).
The month with the least sunshine days is September (1.6 days).
Average UV index in December
Ciudad Altamirano, Mexico
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in December
Ciudad Altamirano, Mexico
- Average cloud cover in December: 10
The month with the most cloud cover is September (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 7).
Average visibility in December
Ciudad Altamirano, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





