December weather forecast
Chumatlan, Mexico

December

Weather in December

December, the first month of the winter in Chumatlan, is also a moderately hot month, with temperature in the range of an average low of 16°C (60.8°F) and an average high of 23.9°C (75°F).

Temperature

December's onset brings an average high-temperature of a still warm 23.9°C (75°F), showing a minute difference from November's 25.3°C (77.5°F). An average low-temperature of 16°C (60.8°F) is noted during the nights in December in Chumatlan.

Humidity

With an average relative humidity of 84%, December is the most humid month in Chumatlan.

Rainfall

In December, the rain falls for 13.5 days. Throughout December, 37mm (1.46") of precipitation is accumulated. In Chumatlan, during the entire year, the rain falls for 196.2 days and collects up to 978mm (38.5") of precipitation.

Daylight

The month with the shortest days is December, with an average of 10h and 54min of daylight.
On the first day of December in Chumatlan, sunrise is at 6:49 am and sunset at 5:49 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:01 pm CST.

Sunshine

The months with the least sunshine in Chumatlan are November and December, with an average of 5.4h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 in December transforms into the following instructions:
Take necessary precautions - Defending against sun damage is advocated. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

What are the temperatures in Chumatlan in December?
The average high-temperature, in December, in Chumatlan, is 23.9°C (75°F), while the average low-temperature is 16°C (60.8°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in October is evaluated at 34°C (93.2°F).
What is the most humid month in Chumatlan?
With an average relative humidity of 84%, December is the most humid month in Chumatlan.
What is the average humidity in December in Chumatlan?
The average relative humidity in December in Chumatlan, Mexico, is 84%.
How much does it rain in Chumatlan in December?
In December, in Chumatlan, Mexico, the rain falls for 13.5 days. Throughout December, 37mm (1.46") of precipitation is accumulated.
What is the month with the shortest days in Chumatlan?
The month with the shortest days is December, with an average of 10h and 54min of daylight.
How many hours of daylight does Chumatlan have in December?
In December, the average day length in Chumatlan is 10h and 56min.
When are sunrise and sunset in December in Chumatlan?
In December, on the first day of the month, sunrise is at 6:49 am and sunset at 5:49 pm. On the last day of the month, in Chumatlan, sunrise is at 7:05 am and sunset at 6:01 pm CST.
What is the month with the least sunshine in Chumatlan?
The months with the least sunshine in Chumatlan, Mexico, are November and December, with an average of 5.4h of sunshine.
How long on average sun shines in December in Chumatlan?
The average sunshine duration in December is 5.4h.
When is the lowest UV index in Chumatlan?
January, February and December, with an average maximum UV index of 5, are months with the lowest UV index in Chumatlan.
How high is the UV index in December in Chumatlan?
The average daily maximum UV index in December in Chumatlan is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe 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 - Chumatlan, Mexico
Average temperature in December
Chumatlan, Mexico
  • Average high temperature in December: 23.9°C

The warmest month (with the highest average high temperature) is May (32.3°C).
The month with the lowest average high temperature is January (22.7°C).

  • Average low temperature in December: 16°C

The month with the highest average low temperature is June (22.6°C).
The coldest month (with the lowest average low temperature) is January (14.5°C).

Average pressure in December - Chumatlan, Mexico
Average pressure in December
Chumatlan, Mexico
  • Average pressure in December: 1017.6mbar

The month with the highest atmospheric pressure is January (1019mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).

Average wind speed in December - Chumatlan, Mexico
Average wind speed in December
Chumatlan, Mexico
  • Average wind speed in December: 6.5km/h

The windiest month (with the highest average wind speed) is May (7.8km/h).
The calmest month (with the lowest average wind speed) is December (6.5km/h).

Average humidity in December - Chumatlan, Mexico
Average humidity in December
Chumatlan, Mexico
  • Average humidity in December: 84%

The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are April and May (75%).

Average rainfall in December - Chumatlan, Mexico
Average rainfall in December
Chumatlan, Mexico
  • Average rainfall in December: 37mm

The wettest month (with the highest rainfall) is October (190mm).
The driest month (with the least rainfall) is March (35mm).

Average rainfall days in December - Chumatlan, Mexico
Average rainfall days in December
Chumatlan, Mexico
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is April (11.7 days).

Average daylight in December / Average sunshine in December - Chumatlan, Mexico
Average daylight in December /
Average sunshine in December
Chumatlan, 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: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are November and December (Average sunshine: 5h and 24min).

Average sunshine days in December - Chumatlan, Mexico
Average sunshine days in December
Chumatlan, Mexico
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is September (5.5 days).

Average UV index in December - Chumatlan, Mexico
Average UV index in December
Chumatlan, Mexico
  • Average UV index in December: 5

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).

Average cloud cover in December - Chumatlan, Mexico
Average cloud cover in December
Chumatlan, Mexico
  • Average cloud cover in December: 50

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are May, July and August (Cloud cover 30).

Average visibility in December - Chumatlan, Mexico
Average visibility in December
Chumatlan, Mexico
  • Average visibility in December: 8km

The months with the highest visibility are May, June, July, August and September (9km).
The month with the lowest visibility is February (7km).

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