December weather forecastSan Ildefonso Amatlán, Mexico
December
Weather in December
December, the first month of the winter in San Ildefonso Amatlán, is also a moderately hot month, with an average temperature fluctuating between 27.6°C (81.7°F) and 20.6°C (69.1°F).Temperature
The arrival of December is marked by an average high-temperature of a still moderately hot 27.6°C (81.7°F), bearing a close resemblance to November. San Ildefonso Amatlán experiences a consistent average temperature of 20.6°C (69.1°F) throughout the nights in December.Heat index
The heat index in December is appraised at a tropical 30°C (86°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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
The average relative humidity in December is 68%.Rainfall
In San Ildefonso Amatlán, in December, it is raining for 4.8 days, with typically 6mm (0.24") of accumulated precipitation. Throughout the year, there are 208.9 rainfall days, and 1221mm (48.07") of precipitation is accumulated.Daylight
With an average of 11h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:38 am and sunset at 5:51 pm. On the last day of December, sunrise is at 6:54 am and sunset at 6:04 pm CST.
Sunshine
The average sunshine in December is 8.2h.UV index
January through March, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 6 suggests these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Ildefonso Amatlán, Mexico
- Average high temperature in December: 27.6°C
The warmest month (with the highest average high temperature) is April (29.6°C).
The month with the lowest average high temperature is September (26.9°C).
- Average low temperature in December: 20.6°C
The month with the highest average low temperature is May (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.4°C).
Average pressure in December
San Ildefonso Amatlán, Mexico
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is May (1011.3mbar).
Average wind speed in December
San Ildefonso Amatlán, Mexico
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is April (9.3km/h).
The calmest month (with the lowest average wind speed) is October (7.3km/h).
Average humidity in December
San Ildefonso Amatlán, Mexico
- Average humidity in December: 68%
The month with the highest relative humidity is September (80%).
The months with the lowest relative humidity are January and March (64%).
Average rainfall in December
San Ildefonso Amatlán, Mexico
- Average rainfall in December: 6mm
The wettest month (with the highest rainfall) is September (254mm).
The driest month (with the least rainfall) is January (4mm).
Average rainfall days in December
San Ildefonso Amatlán, Mexico
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is August (30.3 days).
The month with the least rainy days is February (3.4 days).
Average daylight in December /
Average sunshine in December
San Ildefonso Amatlán, Mexico
- Average daylight in December: 11h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in December: 8h and 12min
The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).
Average sunshine days in December
San Ildefonso Amatlán, Mexico
- Average sunshine days in December: 23.1 days
The month with the most sunshine days is January (24.8 days).
The months with the least sunshine days are August and September (0.1 days).
Average UV index in December
San Ildefonso Amatlán, Mexico
- Average UV index in December: 6
The months with the highest UV index are April and July (UV index 7).
The months with the lowest UV index are January, February, March, May, June, August, September, October, November and December (UV index 6).
Average cloud cover in December
San Ildefonso Amatlán, Mexico
- Average cloud cover in December: 9
The months with the most cloud cover are June and September (Cloud cover 38).
The month with the least cloud cover is February (Cloud cover 8).
Average visibility in December
San Ildefonso Amatlán, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
