Guatemala City
Guatemala
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Guatemala City, Guatemala

The front view of the iconic buildings of the cathedral in Guatemala City, Guatemala
The front view of the iconic buildings of the cathedral in Guatemala City, Guatemala
The first month of the winter, December, is still a warm month in Guatemala City, Guatemala, with temperature in the range of an average low of 13.7°C (56.7°F) and an average high of 23.9°C (75°F).

Temperature

With an average high-temperature of 23.9°C (75°F) and an average low-temperature of 13.7°C (56.7°F), December is the coldest month.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Guatemala City, Guatemala, it is raining for 2.6 days, with typically 6.6mm (0.3") of accumulated precipitation. Throughout the year, there are 125.2 rainfall days, and 1274.8mm (50.2") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11.3h of daylight.

Sunshine

In December, the average sunshine in Guatemala City is 6.7h.

UV index

With an average maximum UV index of 9, December is the month with the lowest UV index. A UV Index of 8 to 10 symbolizes a very high threat to health from unsafe exposure to the UV radiation for average individuals.
In December, the average maximum UV index of 9 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the coldest month in Guatemala City?

With an average high-temperature of 23.9°C (75°F) and an average low-temperature of 13.7°C (56.7°F), December is the coldest month.

What is the temperature in December in Guatemala City?

The average high-temperature, in December, in Guatemala City, Guatemala, is 23.9°C (75°F), while the average low-temperature is 13.7°C (56.7°F).

What is the average humidity in December in Guatemala City?

In Guatemala City, Guatemala, the average relative humidity in December is 76%.

How much does it rain in Guatemala City in December?

In Guatemala City, during December, the rain falls for 2.6 days and regularly aggregates up to 6.6mm (0.3") of precipitation.

What is the month with the shortest days in Guatemala City?

December has the shortest days of the year in Guatemala City, Guatemala, with an average of 11.3h of daylight.

How many hours of daylight does Guatemala City have in December?

In Guatemala City, the average length of the day in December is 11.3h.

How many hours of sunshine does Guatemala City have in December?

The average sunshine in December in Guatemala City, Guatemala, is 6.7h.

What is the month with the lowest UV index in Guatemala City?

With an average maximum UV index of 9, December is the month with the lowest UV index.

What is the UV index reading in December in Guatemala City?

The average daily maximum UV index in December in Guatemala City is 9. A UV Index of 8 to 10 symbolizes a very high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Guatemala City, Guatemala
  • Average high temperature in December: 23.9°C

The warmest month (with the highest average high temperature) is April (27.8°C).
The month with the lowest average high temperature is December (23.9°C).

  • Average low temperature in December: 13.7°C

Months with the highest average low temperature are May and June (16.8°C).
The coldest month (with the lowest average low temperature) is January (13.2°C).

Average humidity in December - Guatemala City, Guatemala
  • Average humidity in December: 76%

The month with the highest relative humidity is September (84.5%).
The month with the lowest relative humidity is March (73.2%).

Average rainfall in December - Guatemala City, Guatemala
  • Average rainfall in December: 6.6mm

The wettest month (with the highest rainfall) is June (271.8mm).
The driest month (with the lowest rainfall) is January (2.8mm).

Average rainfall days in December - Guatemala City, Guatemala
  • Average rainfall days in December: 2.6 days

The month with the highest number of rainy days is June (21.1 days).
The month with the lowest number of rainy days is February (1.5 days).

Average daylight in December / Average sunshine in December - Guatemala City, Guatemala
  • Average daylight in December: 11.3h

The month with the longest days is June (Average daylight: 13h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in December: 6.7h

The month with most sunshine is February (Average sunshine: 8.4h).
The month with least sunshine is June (Average sunshine: 5.2h).

Average UV index in December - Guatemala City, Guatemala
  • Average UV index in December: 9

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 9).