December weather forecastSantiago Jamiltepec, Mexico
December
Weather in December
December, the first month of the winter in Santiago Jamiltepec, is still a warm month, with an average temperature ranging between max 29°C (84.2°F) and min 21°C (69.8°F).Temperature
The advent of December brings an average high-temperature of a still moderately hot 29°C (84.2°F), almost identical to the preceding month. Throughout December, Santiago Jamiltepec records an average temperature of 21°C (69.8°F) at night.Heat index
For December, the heat index is appraised at a hot 32°C (89.6°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
In December, the average relative humidity in Santiago Jamiltepec, Mexico, is 67%.Rainfall
December is the month with the least rainfall in Santiago Jamiltepec. Rain falls for 3.2 days and accumulates 2mm (0.08") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 12min of daylight.On the first day of December in Santiago Jamiltepec, sunrise is at 6:43 am and sunset at 5:57 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:10 pm CST.
Sunshine
In Santiago Jamiltepec, Mexico, the average sunshine in December is 8.7h.UV index
January, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during December translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Santiago Jamiltepec, Mexico
- Average high temperature in December: 29°C
The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (28.9°C).
- Average low temperature in December: 21°C
The month with the highest average low temperature is May (24.6°C).
The coldest months (with the lowest average low temperature) are January and December (21°C).
Average pressure in December
Santiago Jamiltepec, Mexico
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The month with the lowest atmospheric pressure is May (1011.5mbar).
Average wind speed in December
Santiago Jamiltepec, Mexico
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is April (8.9km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in December
Santiago Jamiltepec, Mexico
- Average humidity in December: 67%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is March (63%).
Average rainfall in December
Santiago Jamiltepec, Mexico
- Average rainfall in December: 2mm
The wettest month (with the highest rainfall) is September (160mm).
The driest month (with the least rainfall) is December (2mm).
Average rainfall days in December
Santiago Jamiltepec, Mexico
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is September (27.5 days).
The months with the least rainy days are January and February (3.1 days).
Average daylight in December /
Average sunshine in December
Santiago Jamiltepec, Mexico
- Average daylight in December: 11h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in December: 8h and 42min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).
Average sunshine days in December
Santiago Jamiltepec, Mexico
- Average sunshine days in December: 26 days
The month with the most sunshine days is December (26 days).
The month with the least sunshine days is September (0.9 days).
Average UV index in December
Santiago Jamiltepec, Mexico
- Average UV index in December: 6
The months with the highest UV index are February, March, April, May, June, July and September (UV index 7).
The months with the lowest UV index are January, August, October, November and December (UV index 6).
Average cloud cover in December
Santiago Jamiltepec, Mexico
- Average cloud cover in December: 9
The month with the most cloud cover is September (Cloud cover 37).
The months with the least cloud cover are February and December (Cloud cover 9).
Average visibility in December
Santiago Jamiltepec, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
