December weather forecastCatarina, Guatemala

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Catarina, Guatemala, with an average temperature varying between 29.8°C (85.6°F) and 22.2°C (72°F).

Temperature

The advent of December signifies a minor shift to an average high-temperature of a moderately hot 29.8°C (85.6°F), aligning closely with November. In Catarina, December is marked by an average low-temperature of 22.2°C (72°F).

Heat index

In December, the average heat index is estimated at a hot 34°C (93.2°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

In December, the average relative humidity is 66%.

Rainfall

In December, the rain falls for 6.7 days. Throughout December, 15mm (0.59") of precipitation is accumulated. Throughout the year, there are 226.8 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 18min of daylight.
On the first day of December, sunrise is at 06:18 and sunset at 17:36. On the last day of the month, sunrise is at 06:33 and sunset at 17:49 CST.

Sunshine

The average sunshine in December is 7.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Fend off overexposure. Sun protection is vital. 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. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Updated: Aug 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Catarina, 29.8°C (85.6°F) is the average high-temperature and 22.2°C (72°F) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is estimated at 34°C (93.2°F).

In December, the average relative humidity is 66%.

In December, the rain falls for 6.7 days. Throughout December, 15mm (0.59") of precipitation is accumulated.

The month with the shortest days is December, with an average of 11h and 18min of daylight.

In Catarina, the average day length in December is 11h and 16min.

In December, on the first day of the month, sunrise is at 06:18 and sunset at 17:36. On the last day of the month, sunrise is at 06:33 and sunset at 17:49 CST.

In Catarina, the average sunshine duration in December is 7.6h.

January through December, with an average maximum UV index of 7, are months with the highest UV index.

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

In Catarina, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

30.3°C

29.8°C

30.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.2km/h

7.8km/h

8.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

7.2

19.4

22.8

Average UV index

Average cloud cover

18%

11%

Average visibility

10km

Average temperature in December
Catarina, Guatemala

Average high temperature in December: 29.8°C

The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (29.7°C).

Average low temperature in December: 22.2°C

The month with the highest average low temperature is May (25.1°C).
The coldest months (with the lowest average low temperature) are January and December (22.2°C).

Average pressure in December
Catarina, Guatemala

Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).

Average wind speed in December
Catarina, Guatemala

Average wind speed in December: 6.7km/h

The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).

Average humidity in December
Catarina, Guatemala

Average humidity in December: 66%

The month with the highest relative humidity is October (76%).
The months with the lowest relative humidity are January, February and March (63%).

Average rainfall in December
Catarina, Guatemala

Average rainfall in December: 15mm

The wettest month (with the highest rainfall) is May (244mm).
The driest month (with the least rainfall) is January (6mm).

Average rainfall days in December
Catarina, Guatemala

Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (29.1 days).
The month with the least rainy days is January (3.9 days).

Average daylight in December /
Average sunshine in December
Catarina, Guatemala

Average daylight in December: 11h and 18min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

Average sunshine in December: 7h and 36min

The months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).

Average sunshine days in December
Catarina, Guatemala

Average sunshine days in December: 19.4 days

The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (0.6 days).

Average UV index in December
Catarina, Guatemala

Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in December
Catarina, Guatemala

Average cloud cover in December: 11

The month with the most cloud cover is June (Cloud cover 36).
The months with the least cloud cover are January and December (Cloud cover 11).

Average visibility in December
Catarina, Guatemala

Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (10km).
The months with the lowest visibility are May and August (9km).