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
During December, Jerez records an average high-temperature of a still moderately hot 29.3°C (84.7°F), marking a slight divergence from November's 28.4°C (83.1°F). Jerez reports an average nighttime low-temperature of 18.1°C (64.6°F) in December.Heat index
In December, the heat index is appraised at a tropical 34°C (93.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In Jerez, the average relative humidity in December is 71%.Rainfall
In Jerez, Guatemala, during December, the rain falls for 3 days and regularly aggregates up to 4mm (0.16") of precipitation. Throughout the year, there are 169.5 rainfall days, and 865mm (34.06") of precipitation is accumulated.Daylight
With an average of 11h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:07 and sunset at 17:28. On the last day of the month, sunrise is at 06:23 and sunset at 17:41 CST.
Sunshine
January and December, with an average of 7.7h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Jerez are January, February, May through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 6 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full 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 during December?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Jerez, 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
Jerez, 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
Jerez, 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
Jerez, 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
Jerez, 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
Jerez, 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
Jerez, Guatemala
- Average daylight in December: 11h and 2min
The month with the longest days is June (Average daylight: 12h and 54min).
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
Jerez, 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
Jerez, 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
Jerez, 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
Jerez, 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).
