December weather forecastZacatlán, Mexico
December
Weather in December
The first month of the winter, December, is still a comfortable month in Zacatlán, Mexico, with an average temperature varying between 18.9°C (66°F) and 8.9°C (48°F).Temperature
December's commencement is accompanied by an average high-temperature of a still comfortable 18.9°C (66°F), diverging marginally from November's 18.8°C (65.8°F). Zacatlán sees an average low-temperature of 8.9°C (48°F) during December.Humidity
In December, the average relative humidity in Zacatlán is 79%.Rainfall
The month with the least rainfall in Zacatlán, Mexico, is December, when the rain falls for 14.2 days and typically collects 23mm (0.91") of precipitation.Snowfall
January through October and December are months without snowfall in Zacatlán.Daylight
The month with the shortest days in Zacatlán is December, with an average of 11h and 0min of daylight.On the first day of December in Zacatlán, sunrise is at 6:50 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:03 pm CST.
Sunshine
The average sunshine in December in Zacatlán, Mexico, is 7.1h.UV index
January, February, October through December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during December translates into the following guidance:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Zacatlán, Mexico
- Average high temperature in December: 18.9°C
The warmest month (with the highest average high temperature) is April (24.7°C).
The month with the lowest average high temperature is January (17.7°C).
- Average low temperature in December: 8.9°C
The month with the highest average low temperature is June (13.9°C).
The coldest month (with the lowest average low temperature) is January (7.9°C).
Average pressure in December
Zacatlán, Mexico
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).
Average wind speed in December
Zacatlán, Mexico
- Average wind speed in December: 6.2km/h
The windiest month (with the highest average wind speed) is April (7.6km/h).
The calmest month (with the lowest average wind speed) is September (5.8km/h).
Average humidity in December
Zacatlán, Mexico
- Average humidity in December: 79%
The month with the highest relative humidity is September (88%).
The month with the lowest relative humidity is April (69%).
Average rainfall in December
Zacatlán, Mexico
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is June (143mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in December
Zacatlán, Mexico
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is July (26.2 days).
The month with the least rainy days is December (14.2 days).
Average snowfall in December
Zacatlán, Mexico
- Average snowfall in December: 0mm
The month with the highest snowfall is November (7mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Zacatlán, Mexico
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is November (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and December (0 days).
Average daylight in December /
Average sunshine in December
Zacatlán, 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: 7h and 6min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in December
Zacatlán, Mexico
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is January (11.9 days).
The month with the least sunshine days is September (3.8 days).
Average UV index in December
Zacatlán, Mexico
- Average UV index in December: 4
The months with the highest UV index are March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 4).
Average cloud cover in December
Zacatlán, Mexico
- Average cloud cover in December: 39
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in December
Zacatlán, Mexico
- Average visibility in December: 7km
The month with the highest visibility is April (9km).
The month with the lowest visibility is November (6km).





