December weather forecastEl Grullo, Mexico

December

Weather in December

December, the first month of the winter in El Grullo, is also a moderately hot month, with temperature in the range of an average high of 25.6°C (78.1°F) and an average low of 12.4°C (54.3°F).

Temperature

El Grullo's coldest month, December, registers temperatures that range from a high of 25.6°C (78.1°F) to a low of 12.4°C (54.3°F).

Humidity

In El Grullo, the average relative humidity in December is 68%.

Rainfall

In El Grullo, during December, the rain falls for 5.3 days and regularly aggregates up to 15mm (0.59") of precipitation. Throughout the year, there are 165.7 rainfall days, and 1050mm (41.34") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 0min of daylight.
On the first day of the month, sunrise is at 7:15 am and sunset at 6:16 pm. On the last day of December, in El Grullo, sunrise is at 7:31 am and sunset at 6:29 pm CST.

Sunshine

In El Grullo, Mexico, the average sunshine in December is 9.7h.

UV index

January, August, October through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 in December translates into these instructions:
Take necessary precautions - Defending against sun damage is advocated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

December is the month that records the lowest temperatures in El Grullo, Mexico, with averages ranging from a high of 25.6°C (78.1°F) to a low of 12.4°C (54.3°F).

The average high-temperature and low-temperature in El Grullo during December are 25.6°C (78.1°F) and 12.4°C (54.3°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 30°C (86°F).

The average relative humidity in December in El Grullo, Mexico, is 68%.

In El Grullo, Mexico, during December, the rain falls for 5.3 days and regularly aggregates up to 15mm (0.59") of precipitation.

The month with the shortest days is December, with an average of 11h and 0min of daylight.

In El Grullo, the average day length in December is 10h and 58min.

On the first day of December, sunrise is at 7:15 am and sunset at 6:16 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:29 pm CST.

The average sunshine duration in December in El Grullo, Mexico, is 9.7h.

The months with the lowest UV index are January, August, October through December, with an average maximum UV index of 5.

In El Grullo, Mexico, the average daily maximum UV index in December 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
El Grullo, Mexico

  • Average high temperature in December: 25.6°C

The warmest month (with the highest average high temperature) is May (31.7°C).
The month with the lowest average high temperature is December (25.6°C).

  • Average low temperature in December: 12.4°C

The month with the highest average low temperature is June (18.5°C).
The coldest month (with the lowest average low temperature) is January (12.1°C).

Average pressure in December
El Grullo, Mexico

  • Average pressure in December: 1014.3mbar

The month with the highest atmospheric pressure is January (1014.8mbar).
The month with the lowest atmospheric pressure is June (1011.5mbar).

Average wind speed in December
El Grullo, Mexico

  • Average wind speed in December: 5.2km/h

The windiest month (with the highest average wind speed) is April (6.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).

Average humidity in December
El Grullo, Mexico

  • Average humidity in December: 68%

The month with the highest relative humidity is September (88%).
The month with the lowest relative humidity is April (46%).

Average rainfall in December
El Grullo, Mexico

  • Average rainfall in December: 15mm

The wettest month (with the highest rainfall) is August (250mm).
The driest month (with the least rainfall) is April (2mm).

Average rainfall days in December
El Grullo, Mexico

  • Average rainfall days in December: 5.3 days

The month with the highest number of rainy days is August (29.6 days).
The month with the least rainy days is April (1.6 days).

Average daylight in December /
Average sunshine in December
El Grullo, 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 42min

The months with the most sunshine are March, April and May (Average sunshine: 9h and 48min).
The month with the least sunshine is September (Average sunshine: 8h and 0min).

Average sunshine days in December
El Grullo, Mexico

  • Average sunshine days in December: 25.2 days

The month with the most sunshine days is April (28.1 days).
The month with the least sunshine days is August (0.9 days).

Average UV index in December
El Grullo, Mexico

  • Average UV index in December: 5

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

Average cloud cover in December
El Grullo, Mexico

  • Average cloud cover in December: 17

The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is April (Cloud cover 9).

Average visibility in December
El Grullo, Mexico

  • Average visibility in December: 9km

The months with the highest visibility are March, April and May (10km).
The month with the lowest visibility is September (6km).