December weather forecastSan Jerónimo Xayacatlán, Mexico
December
Weather in December
The first month of the winter, December, is also a moderately hot month in San Jerónimo Xayacatlán, Mexico, with an average temperature fluctuating between 25.3°C (77.5°F) and 12.5°C (54.5°F).Temperature
During December, the average high-temperature is a still moderately hot 25.3°C (77.5°F), maintaining a close resemblance to that of the preceding month. With a significant daily temperature differential, San Jerónimo Xayacatlán's nighttime temperature in December falls to an average of 12.5°C (54.5°F).Humidity
In San Jerónimo Xayacatlán, Mexico, the average relative humidity in December is 56%.Rainfall
December is the only month when rain does not fall.Daylight
The month with the shortest days is December, with an average of 11h and 6min of daylight.On the first day of the month, sunrise is at 6:47 am and sunset at 5:54 pm. On the last day of December, in San Jerónimo Xayacatlán, sunrise is at 7:03 am and sunset at 6:06 pm CST.
Sunshine
In San Jerónimo Xayacatlán, the average sunshine in December is 8.6h.UV index
The months with the lowest UV index in San Jerónimo Xayacatlán, Mexico, are January, August, October through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Jerónimo Xayacatlán, Mexico
- Average high temperature in December: 25.3°C
The warmest month (with the highest average high temperature) is April (30.9°C).
The month with the lowest average high temperature is January (24.9°C).
- Average low temperature in December: 12.5°C
The month with the highest average low temperature is May (18.8°C).
The coldest month (with the lowest average low temperature) is January (12.1°C).
Average pressure in December
San Jerónimo Xayacatlán, Mexico
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is January (1017.9mbar).
The month with the lowest atmospheric pressure is May (1014.1mbar).
Average wind speed in December
San Jerónimo Xayacatlán, Mexico
- Average wind speed in December: 8.3km/h
The windiest month (with the highest average wind speed) is March (9.5km/h).
The calmest month (with the lowest average wind speed) is September (6.1km/h).
Average humidity in December
San Jerónimo Xayacatlán, Mexico
- Average humidity in December: 56%
The month with the highest relative humidity is September (74%).
The month with the lowest relative humidity is April (43%).
Average rainfall in December
San Jerónimo Xayacatlán, Mexico
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is June (149mm).
The driest month (with the least rainfall) is December (0mm).
Average rainfall days in December
San Jerónimo Xayacatlán, Mexico
- Average rainfall days in December: 0.5 days
The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is December (0.5 days).
Average daylight in December /
Average sunshine in December
San Jerónimo Xayacatlán, Mexico
- Average daylight in December: 11h and 6min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in December: 8h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 42min).
Average sunshine days in December
San Jerónimo Xayacatlán, Mexico
- Average sunshine days in December: 30.4 days
The month with the most sunshine days is December (30.4 days).
The month with the least sunshine days is September (3 days).
Average UV index in December
San Jerónimo Xayacatlán, Mexico
- Average UV index in December: 5
The month with the highest UV index is April (UV index 7).
The months with the lowest UV index are January, August, October, November and December (UV index 5).
Average cloud cover in December
San Jerónimo Xayacatlán, Mexico
- Average cloud cover in December: 9
The month with the most cloud cover is September (Cloud cover 33).
The months with the least cloud cover are March and December (Cloud cover 9).
Average visibility in December
San Jerónimo Xayacatlán, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
