December weather forecast
San Bartolomé Tlaltelulco, Mexico

December

Weather in December

The first month of the winter, December, is also an enjoyable month in San Bartolomé Tlaltelulco, Mexico, with an average temperature fluctuating between 17.6°C (63.7°F) and 5.4°C (41.7°F).

Temperature

Entering December, San Bartolomé Tlaltelulco's average high-temperature reads a still enjoyable 17.6°C (63.7°F), indicating a close resemblance to the previous month's climate. Nightfall in December introduces a considerable dip in temperature in San Bartolomé Tlaltelulco, settling at an average of 5.4°C (41.7°F).

Humidity

In San Bartolomé Tlaltelulco, the average relative humidity in December is 65%.

Rainfall

The month with the least rainfall is December, when the rain falls for 6.1 days and typically collects 8mm (0.31") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 0min of daylight.
On the first day of the month, sunrise is at 6:56 am and sunset at 5:59 pm. On the last day of December, in San Bartolomé Tlaltelulco, sunrise is at 7:11 am and sunset at 6:11 pm CST.

Sunshine

The average sunshine in December in San Bartolomé Tlaltelulco, Mexico, 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 moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 4 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

What is the temperature in December in San Bartolomé Tlaltelulco?
The high-temperature, in December, in San Bartolomé Tlaltelulco, is 17.6°C (63.7°F), while the low-temperature averages to 5.4°C (41.7°F).
What is the average humidity in December in San Bartolomé Tlaltelulco?
In San Bartolomé Tlaltelulco, Mexico, the average relative humidity in December is 65%.
What is the driest month in San Bartolomé Tlaltelulco?
December is the month with the least rainfall in San Bartolomé Tlaltelulco. Rain falls for 6.1 days and accumulates 8mm (0.31") of precipitation.
How many days does it rain in December in San Bartolomé Tlaltelulco?
In San Bartolomé Tlaltelulco, Mexico, in December, during 6.1 rainfall days, 8mm (0.31") of precipitation is typically accumulated.
What is the month with the shortest days in San Bartolomé Tlaltelulco?
With an average of 11h and 0min of daylight, December has the shortest days of the year in San Bartolomé Tlaltelulco, Mexico.
What is the average length of the day in December in San Bartolomé Tlaltelulco?
The average day length in December is 11h and 0min.
When is the sunrise / sunset in December in San Bartolomé Tlaltelulco?
On the first day of December, sunrise is at 6:56 am and sunset at 5:59 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:11 pm CST.
How many hours of sunshine does San Bartolomé Tlaltelulco have in December?
The average sunshine duration in December is 9.3h.
What is the UV index reading in December in San Bartolomé Tlaltelulco?
The average daily maximum UV index in December in San Bartolomé Tlaltelulco, Mexico, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - San Bartolomé Tlaltelulco, Mexico
Average temperature in December
San Bartolomé Tlaltelulco, Mexico
  • Average high temperature in December: 17.6°C

The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).

  • Average low temperature in December: 5.4°C

The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).

Average pressure in December - San Bartolomé Tlaltelulco, Mexico
Average pressure in December
San Bartolomé Tlaltelulco, Mexico
  • Average pressure in December: 1017.2mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).

Average wind speed in December - San Bartolomé Tlaltelulco, Mexico
Average wind speed in December
San Bartolomé Tlaltelulco, Mexico
  • Average wind speed in December: 5.6km/h

The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).

Average humidity in December - San Bartolomé Tlaltelulco, Mexico
Average humidity in December
San Bartolomé Tlaltelulco, 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 Bartolomé Tlaltelulco, Mexico
Average rainfall in December
San Bartolomé Tlaltelulco, Mexico
  • Average rainfall in December: 8mm

The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).

Average rainfall days in December - San Bartolomé Tlaltelulco, Mexico
Average rainfall days in December
San Bartolomé Tlaltelulco, Mexico
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).

Average daylight in December / Average sunshine in December - San Bartolomé Tlaltelulco, Mexico
Average daylight in December /
Average sunshine in December
San Bartolomé Tlaltelulco, 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 2min

The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).

Average sunshine days in December - San Bartolomé Tlaltelulco, Mexico
Average sunshine days in December
San Bartolomé Tlaltelulco, Mexico
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).

Average UV index in December - San Bartolomé Tlaltelulco, Mexico
Average UV index in December
San Bartolomé Tlaltelulco, 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 September and October (UV index 3).

Average cloud cover in December - San Bartolomé Tlaltelulco, Mexico
Average cloud cover in December
San Bartolomé Tlaltelulco, Mexico
  • Average cloud cover in December: 13

The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).

Average visibility in December - San Bartolomé Tlaltelulco, Mexico
Average visibility in December
San Bartolomé Tlaltelulco, Mexico
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).

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