December weather forecast
Guanajuato, Mexico

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Weather in December

Closing the annual weather cycle, December in Guanajuato, observes winter in its full form. It exhibits the city's second-lowest monthly average temperature, 20.3°C (68.5°F), accompanied by a significantly dry period of 4mm (0.16") total rainfall. The city gleams under the winter sun, making it an apt setting for those wanting to delve into the historical richness of Guanajuato. December's wintry charm, imbued with calm winds and a low UV index, unfolds the city's festivities seamlessly.

Temperature

Guanajuato notes an average high-temperature of a still pleasant 20.3°C (68.5°F) in December, hardly diverging from November. Guanajuato's temperature in December declines substantially from daytime highs, settling at a consistent average of 7.6°C (45.7°F) during the nights.

Humidity

In December, the average relative humidity is 57%.

Rainfall

In December, the rain falls for 1.8 days. Throughout December, 4mm (0.16") of precipitation is accumulated. Throughout the year, in Guanajuato, there are 116.2 rainfall days, and 425mm (16.73") of precipitation is accumulated.

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 Guanajuato, sunrise is at 7:06 am and sunset at 6:02 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 6:14 pm CST.

Sunshine

The months with the most sunshine in Guanajuato are January, May and December, with an average of 9.8h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

What is the average December temperature in Guanajuato?

The high-temperature in Guanajuato, Mexico, during December is 20.3°C (68.5°F) and the low-temperature is 7.6°C (45.7°F). In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 28°C (82.4°F).

What is the average humidity in December in Guanajuato?

In Guanajuato, the average relative humidity in December is 57%.

How much does it rain in Guanajuato in December?

In December, in Guanajuato, the rain falls for 1.8 days. Throughout December, 4mm (0.16") of precipitation is accumulated.

What is the month with the shortest days in Guanajuato?

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

What is the average length of the day in December in Guanajuato?

The average day length in December in Guanajuato is 10h and 53min.

When are sunrise and sunset in December in Guanajuato?

On the first day of December in Guanajuato, sunrise is at 7:06 am and sunset at 6:02 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 6:14 pm CST.

What is the month with the most sunshine in Guanajuato?

January, May and December, with an average of 9.8h of sunshine, are months with the most sunshine.

How long on average sun shines in December in Guanajuato?

In December, the average sunshine duration in Guanajuato is 9.8h.

What is the month with the lowest UV index in Guanajuato?

The months with the lowest UV index in Guanajuato are January, November and December, with an average maximum UV index of 4.

What is the UV index reading in December in Guanajuato?

In Guanajuato, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.

Average temperature in December
Guanajuato, Mexico

Average temperature in December - Guanajuato, Mexico
  • Average high temperature in December: 20.3°C

The warmest month (with the highest average high temperature) is May (28.2°C).
The month with the lowest average high temperature is January (19.8°C).

  • Average low temperature in December: 7.6°C

The month with the highest average low temperature is June (14.4°C).
The coldest month (with the lowest average low temperature) is January (7°C).

Average pressure in December
Guanajuato, Mexico

Average pressure in December - Guanajuato, Mexico
  • Average pressure in December: 1017.8mbar

The month with the highest atmospheric pressure is January (1018.5mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).

Average wind speed in December
Guanajuato, Mexico

Average wind speed in December - Guanajuato, Mexico
  • Average wind speed in December: 9.1km/h

The windiest month (with the highest average wind speed) is April (10.8km/h).
The calmest month (with the lowest average wind speed) is December (9.1km/h).

Average humidity in December
Guanajuato, Mexico

Average humidity in December - Guanajuato, Mexico
  • Average humidity in December: 57%

The month with the highest relative humidity is September (76%).
The month with the lowest relative humidity is April (36%).

Average rainfall in December
Guanajuato, Mexico

Average rainfall in December - Guanajuato, Mexico
  • Average rainfall in December: 4mm

The wettest month (with the highest rainfall) is July (87mm).
The driest month (with the least rainfall) is January (3mm).

Average rainfall days in December
Guanajuato, Mexico

Average rainfall days in December - Guanajuato, Mexico
  • Average rainfall days in December: 1.8 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is December (1.8 days).

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

Average daylight in December / Average sunshine in December - Guanajuato, Mexico
  • Average daylight in December: 10h and 5min

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: 9h and 5min

The months with the most sunshine are January, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 12min).

Average sunshine days in December
Guanajuato, Mexico

Average sunshine days in December - Guanajuato, Mexico
  • Average sunshine days in December: 28.5 days

The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (9.1 days).

Average UV index in December
Guanajuato, Mexico

Average UV index in December - Guanajuato, Mexico
  • Average UV index in December: 4

The months with the highest UV index are April and May (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in December
Guanajuato, Mexico

Average cloud cover in December - Guanajuato, Mexico
  • Average cloud cover in December: 12

The months with the most cloud cover are July and September (Cloud cover 35).
The months with the least cloud cover are March and April (Cloud cover 11).

Average visibility in December
Guanajuato, Mexico

Average visibility in December - Guanajuato, Mexico
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (8km).

Guanajuato, Mexico

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