Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
With December's arrival, San Cristobal notes an average high-temperature of a still moderately hot 29.3°C (84.7°F), closely following the trend of the preceding month. San Cristobal's temperature tends to fall to an average low of 18.1°C (64.6°F) during the nights of December.Heat index
Throughout December, the heat index is calculated to be a tropical 34°C (93.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In San Cristobal, the average relative humidity in December is 71%.Rainfall
In San Cristobal, in December, it is raining for 3 days, with typically 4mm (0.16") of accumulated precipitation. In San Cristobal, during the entire year, the rain falls for 169.5 days and collects up to 865mm (34.06") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 18min of daylight.On the first day of the month, sunrise is at 06:07 and sunset at 17:28. On the last day of December, in San Cristobal, sunrise is at 06:22 and sunset at 17:41 CST.
Sunshine
January and December, with an average of 7.7h of sunshine, are months with the least sunshine in San Cristobal.UV index
The months with the lowest UV index are January, February, May through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in San Cristobal during December?
What is the average humidity in December in San Cristobal?
How many days does it rain in December in San Cristobal?
What is the month with the shortest days in San Cristobal?
How many hours of daylight does San Cristobal have in December?
When is the sunrise / sunset in December in San Cristobal?
What is the month with the least sunshine in San Cristobal?
How many hours of sunshine does San Cristobal have in December?
What is the month with the lowest UV index in San Cristobal?
What is the UV index reading in December in San Cristobal?
Average temperature in December
San Cristobal, Guatemala
- Average high temperature in December: 29.3°C
The warmest month (with the highest average high temperature) is April (32.6°C).
The month with the lowest average high temperature is October (28.1°C).
- Average low temperature in December: 18.1°C
The month with the highest average low temperature is May (21.7°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).
Average pressure in December
San Cristobal, Guatemala
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is January (1014.1mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).
Average wind speed in December
San Cristobal, Guatemala
- Average wind speed in December: 9.4km/h
The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest months (with the lowest average wind speed) are June and September (5.2km/h).
Average humidity in December
San Cristobal, Guatemala
- Average humidity in December: 71%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is March (63%).
Average rainfall in December
San Cristobal, Guatemala
- Average rainfall in December: 4mm
The wettest month (with the highest rainfall) is October (162mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in December
San Cristobal, Guatemala
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is May (24.2 days).
The month with the least rainy days is January (1.8 days).
Average daylight in December /
Average sunshine in December
San Cristobal, Guatemala
- Average daylight in December: 11h and 2min
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 4min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in December
San Cristobal, Guatemala
- Average sunshine days in December: 27.5 days
The month with the most sunshine days is January (28.4 days).
The month with the least sunshine days is June (5.9 days).
Average UV index in December
San Cristobal, Guatemala
- Average UV index in December: 6
The months with the highest UV index are March and April (UV index 7).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in December
San Cristobal, Guatemala
- Average cloud cover in December: 12
The months with the most cloud cover are June and September (Cloud cover 42).
The months with the least cloud cover are January and December (Cloud cover 12).
Average visibility in December
San Cristobal, Guatemala
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are June, August, September and October (8km).
