December weather forecastSan Ildefonso, Mexico
December
Weather in December
December, the first month of the winter in San Ildefonso, is also an enjoyable month, with an average temperature fluctuating between 4.9°C (40.8°F) and 17.5°C (63.5°F).Temperature
San Ildefonso notes an average high-temperature of a still refreshing 17.5°C (63.5°F) in December, hardly diverging from November. During December, San Ildefonso perceives a consistent contrast from the daytime highs, with an average low-temperature of 4.9°C (40.8°F).Humidity
In December, the average relative humidity is 65%.Rainfall
The month with the least rainfall is December, when the rain falls for 4.7 days and typically collects 7mm (0.28") of precipitation.Snowfall
January, April through December are months without snowfall.Daylight
With an average of 11h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:55 am and sunset at 5:57 pm. On the last day of December, sunrise is at 7:11 am and sunset at 6:09 pm CST.
Sunshine
In San Ildefonso, the average sunshine in December is 9.3h.UV index
The average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 4 during December, leads to the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Ildefonso, Mexico
- Average high temperature in December: 17.5°C
The warmest month (with the highest average high temperature) is April (22.6°C).
The month with the lowest average high temperature is January (16.8°C).
- Average low temperature in December: 4.9°C
The month with the highest average low temperature is May (10.2°C).
The coldest month (with the lowest average low temperature) is January (4.4°C).
Average pressure in December
San Ildefonso, Mexico
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is January (1017.9mbar).
The month with the lowest atmospheric pressure is May (1013.8mbar).
Average wind speed in December
San Ildefonso, Mexico
- Average wind speed in December: 5.7km/h
The windiest month (with the highest average wind speed) is March (7.1km/h).
The calmest month (with the lowest average wind speed) is July (4.6km/h).
Average humidity in December
San Ildefonso, Mexico
- Average humidity in December: 65%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (47%).
Average rainfall in December
San Ildefonso, Mexico
- Average rainfall in December: 7mm
The wettest month (with the highest rainfall) is July (275mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in December
San Ildefonso, Mexico
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is December (4.7 days).
Average snowfall days in December
San Ildefonso, Mexico
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are February and March (0.1 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
San Ildefonso, Mexico
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 9h and 18min
The month with the most sunshine is March (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 8h and 0min).
Average sunshine days in December
San Ildefonso, Mexico
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is December (24.5 days).
The months with the least sunshine days are July and August (0.3 days).
Average UV index in December
San Ildefonso, Mexico
- Average UV index in December: 4
The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are June, August and September (UV index 3).
Average cloud cover in December
San Ildefonso, Mexico
- Average cloud cover in December: 13
The month with the most cloud cover is September (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 12).
Average visibility in December
San Ildefonso, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May and December (10km).
The months with the lowest visibility are July, August and September (7km).
