December weather forecastCompostela, Mexico

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Compostela, Mexico, with an average temperature ranging between min 13.7°C (56.7°F) and max 27.1°C (80.8°F).

Temperature

With average high temperatures of 27.1°C (80.8°F) and lows of 13.7°C (56.7°F), December is the coldest month.

Heat index

For December, the heat index is appraised at 29°C (84.2°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The average relative humidity in December is 67%.

Rainfall

In Compostela, in December, during 5.9 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, in Compostela, there are 164.8 rainfall days, and 1589mm (62.56") of precipitation is accumulated.

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:20 am and sunset at 5:16 pm. On the last day of December, sunrise is at 6:36 am and sunset at 5:28 pm MST.

Sunshine

January, November and December, with an average of 7.3h of sunshine, are months with the least sunshine in Compostela.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 5 in December translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. When the Sun is at its strongest around midday, find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

With average high and low temperatures of 27.1°C (80.8°F) and 13.7°C (56.7°F) respectively, December is Compostela's coldest month.

December temperatures in Compostela, Mexico, vary between a high-temperature of 27.1°C (80.8°F) and a low-temperature of 13.7°C (56.7°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 29°C (84.2°F).

The average relative humidity in December is 67%.

In Compostela, during December, the rain falls for 5.9 days and regularly aggregates up to 33mm (1.3") of precipitation.

The month with the shortest days in Compostela is December, with an average of 10h and 54min of daylight.

In Compostela, the average day length in December is 10h and 52min.

In December, on the first day of the month, sunrise is at 6:20 am and sunset at 5:16 pm. On the last day of the month, in Compostela, Mexico, sunrise is at 6:36 am and sunset at 5:28 pm MST.

January, November and December, with an average of 7.3h of sunshine, are months with the least sunshine in Compostela.

In Compostela, Mexico, the average sunshine duration in December is 7.3h.

The months with the lowest UV index in Compostela, Mexico, are January and December, with an average maximum UV index of 5.

The average daily maximum UV index in December in Compostela is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Compostela, Mexico

  • Average high temperature in December: 27.1°C

The warmest month (with the highest average high temperature) is May (33.1°C).
The month with the lowest average high temperature is December (27.1°C).

  • Average low temperature in December: 13.7°C

The month with the highest average low temperature is August (20.7°C).
The coldest month (with the lowest average low temperature) is February (13.3°C).

Average pressure in December
Compostela, Mexico

  • Average pressure in December: 1015.1mbar

The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is June (1011.7mbar).

Average wind speed in December
Compostela, Mexico

  • Average wind speed in December: 5.5km/h

The windiest month (with the highest average wind speed) is April (6.8km/h).
The calmest months (with the lowest average wind speed) are August and September (4.6km/h).

Average humidity in December
Compostela, Mexico

  • Average humidity in December: 67%

The months with the highest relative humidity are August and September (86%).
The months with the lowest relative humidity are March and April (55%).

Average rainfall in December
Compostela, Mexico

  • Average rainfall in December: 33mm

The wettest month (with the highest rainfall) is August (415mm).
The driest month (with the least rainfall) is April (1mm).

Average rainfall days in December
Compostela, Mexico

  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is August (30.3 days).
The month with the least rainy days is April (1 days).

Average daylight in December /
Average sunshine in December
Compostela, Mexico

  • Average daylight in December: 10h and 54min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in December: 7h and 18min

The month with the most sunshine is May (Average sunshine: 11h and 48min).
The months with the least sunshine are January, November and December (Average sunshine: 7h and 18min).

Average sunshine days in December
Compostela, Mexico

  • Average sunshine days in December: 24.7 days

The month with the most sunshine days is April (29.3 days).
The month with the least sunshine days is August (0.3 days).

Average UV index in December
Compostela, Mexico

  • Average UV index in December: 5

The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 6).
The months with the lowest UV index are January and December (UV index 5).

Average cloud cover in December
Compostela, Mexico

  • Average cloud cover in December: 19

The month with the most cloud cover is August (Cloud cover 62).
The month with the least cloud cover is March (Cloud cover 13).

Average visibility in December
Compostela, Mexico

  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May and December (9km).
The months with the lowest visibility are August and September (6km).