December weather forecastSantiago, Mexico
December weather for Santiago, Mexico: The month with the most snowfall in Santiago is December, when snow falls for 0.1 days and typically aggregates up to 6mm (0.24") of snow. The first month of the winter, December, is still a refreshing month in Santiago, Mexico, with an average temperature ranging between min 9.5°C (49.1°F) and max 19.5°C (67.1°F).
December
Weather in December
The first month of the winter, December, is still a refreshing month in Santiago, Mexico, with an average temperature ranging between min 9.5°C (49.1°F) and max 19.5°C (67.1°F).Temperature
Santiago's shift from November to December is accompanied by an average high-temperature of a comfortable 19.5°C (67.1°F), a slight deviation from 21.5°C (70.7°F). Throughout December nights, Santiago registers an average low-temperature of 9.5°C (49.1°F).Humidity
The average relative humidity in December in Santiago is 59%.Rainfall
In Santiago, Mexico, in December, it is raining for 6 days, with typically 14mm (0.55") of accumulated precipitation. In Santiago, during the entire year, the rain falls for 158.3 days and collects up to 602mm (23.7") of precipitation.Snowfall
December is the only month when snow falls in Santiago. The month with the most snowfall in Santiago is December, when snow falls for 0.1 days and typically aggregates up to 6mm (0.24") of snow.Daylight
December has the shortest days of the year, with an average of 10h and 36min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 5:49 pm. On the last day of December, in Santiago, sunrise is at 7:26 am and sunset at 6:01 pm CST.
Sunshine
In December, the average sunshine in Santiago, Mexico, is 7.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 4 in December leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Santiago, Mexico
- Average high temperature in December: 19.5°C
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (18.5°C).
- Average low temperature in December: 9.5°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).
Average pressure in December
Santiago, Mexico
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is January (1019.5mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).
Average wind speed in December
Santiago, Mexico
- Average wind speed in December: 7.4km/h
The windiest months (with the highest average wind speed) are June and July (11.9km/h).
The calmest month (with the lowest average wind speed) is December (7.4km/h).
Average humidity in December
Santiago, Mexico
- Average humidity in December: 59%
The month with the highest relative humidity is September (69%).
The month with the lowest relative humidity is April (50%).
Average rainfall in December
Santiago, Mexico
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is May (105mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days in December
Santiago, Mexico
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is September (22.8 days).
The month with the least rainy days is December (6 days).
Average snowfall in December
Santiago, Mexico
- Average snowfall in December: 6mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Santiago, Mexico
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Santiago, Mexico
- Average daylight in December: 10h and 36min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in December: 7h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in December
Santiago, Mexico
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is September (5.5 days).
Average UV index in December
Santiago, Mexico
- Average UV index in December: 4
The months with the highest UV index are May and July (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Santiago, Mexico
- Average cloud cover in December: 18
The month with the most cloud cover is September (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Santiago, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (10km).
The month with the lowest visibility is September (9km).
