December weather forecast
Acatlán, Mexico

December

Weather in December

The first month of the winter, December, is still a refreshing month in Acatlán, Mexico, with an average temperature fluctuating between 8.9°C (48°F) and 18.9°C (66°F).

Temperature

As Acatlán welcomes December, the average high-temperature is noted at a still comfortable 18.9°C (66°F), closely aligning with the preceding month. An average low-temperature of 8.9°C (48°F) is common during the nights of December.

Humidity

In December, the average relative humidity is 79%.

Rainfall

The month with the least rainfall 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.

Daylight

December has the shortest days of the year in Acatlán, with an average of 10h and 54min of daylight.
On the first day of December, sunrise is at 6:53 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:05 pm CST.

Sunshine

The average sunshine in December in Acatlán is 7h.

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 of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 4 during December translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What is the temperature in December?
The high-temperature in Acatlán during December is 18.9°C (66°F) and the low-temperature is 8.9°C (48°F).
What is the average humidity in December?
The average relative humidity in December is 79%.
What is the driest month?
December is the month with the least rainfall in Acatlán. Rain falls for 14.2 days and accumulates 23mm (0.91") of precipitation.
How much does it rain in December?
In December, in Acatlán, the rain falls for 14.2 days. Throughout December, 23mm (0.91") of precipitation is accumulated.
When it does not snow?
In Acatlán, snow does not fall in January through October and December.
Does it snow in December?
In December, it doesn't snow. November is the latest month when it typically snows.
What is the month with the shortest days in Acatlán?
December has the shortest days of the year, with an average of 10h and 54min of daylight.
How many hours of daylight does Acatlán have in December?
In December, the average day length is 10h and 56min.
When is the sunrise / sunset in December in Acatlán?
In December, on the first day of the month, sunrise is at 6:53 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:05 pm CST.
How many hours of sunshine does Acatlán have in December?
The average sunshine duration in December in Acatlán is 7h.
When is the lowest UV index?
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 4.
What is the UV index reading in December?
In December, the average daily maximum UV index in Acatlán is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Acatlán, Mexico
Average temperature in December
Acatlán, 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 - Acatlán, Mexico
Average pressure in December
Acatlán, 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 - Acatlán, Mexico
Average wind speed in December
Acatlán, 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 - Acatlán, Mexico
Average humidity in December
Acatlán, 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 - Acatlán, Mexico
Average rainfall in December
Acatlán, 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 - Acatlán, Mexico
Average rainfall days in December
Acatlán, 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 - Acatlán, Mexico
Average snowfall in December
Acatlán, 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 - Acatlán, Mexico
Average snowfall days in December
Acatlán, 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 - Acatlán, Mexico
Average daylight in December /
Average sunshine in December
Acatlán, Mexico
  • Average daylight in December: 10h and 5min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in December: 7h and 0min

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 - Acatlán, Mexico
Average sunshine days in December
Acatlán, Mexico
  • Average sunshine days in December: 11.6 days

The month with the most sunshine days is January (11.9 days).
The month with the least sunshine days is September (3.6 days).

Average UV index in December - Acatlán, Mexico
Average UV index in December
Acatlán, 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 - Acatlán, Mexico
Average cloud cover in December
Acatlán, Mexico
  • Average cloud cover in December: 39

The month with the most cloud cover is September (Cloud cover 58).
The month with the least cloud cover is April (Cloud cover 30).

Average visibility in December - Acatlán, Mexico
Average visibility in December
Acatlán, Mexico
  • Average visibility in December: 7km

The month with the highest visibility is April (9km).
The month with the lowest visibility is November (6km).

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