December weather forecastSan Juan Comaltepec, Mexico
December
Weather in December
December, the first month of the winter in San Juan Comaltepec, is still a pleasant month, with an average temperature varying between 20.8°C (69.4°F) and 8.7°C (47.7°F).Temperature
San Juan Comaltepec starts December with an average high-temperature of a still agreeable 20.8°C (69.4°F), hinting at a minimal fluctuation from November. San Juan Comaltepec, amid December nights, sees a noteworthy disparity from daily highs with an average temperature of 8.7°C (47.7°F).Humidity
In December, the average relative humidity is 75%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.5 days and typically collects 5mm (0.2") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 6min of daylight.On the first day of the month, sunrise is at 6:38 am and sunset at 5:48 pm. On the last day of December, sunrise is at 6:53 am and sunset at 6:00 pm CST.
Sunshine
In San Juan Comaltepec, the average sunshine in December is 8.1h.UV index
The months with the lowest UV index in San Juan Comaltepec are January, October through December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during December translates into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Juan Comaltepec, Mexico
- Average high temperature in December: 20.8°C
The warmest month (with the highest average high temperature) is April (26.8°C).
The month with the lowest average high temperature is November (20.6°C).
- Average low temperature in December: 8.7°C
The month with the highest average low temperature is June (13.3°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).
Average pressure in December
San Juan Comaltepec, Mexico
- Average pressure in December: 1016.3mbar
The month with the highest atmospheric pressure is January (1017.1mbar).
The month with the lowest atmospheric pressure is May (1012.9mbar).
Average wind speed in December
San Juan Comaltepec, Mexico
- Average wind speed in December: 6.5km/h
The windiest month (with the highest average wind speed) is November (7.3km/h).
The calmest months (with the lowest average wind speed) are May and June (5.3km/h).
Average humidity in December
San Juan Comaltepec, Mexico
- Average humidity in December: 75%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (62%).
Average rainfall in December
San Juan Comaltepec, Mexico
- Average rainfall in December: 5mm
The wettest month (with the highest rainfall) is June (203mm).
The driest month (with the least rainfall) is December (5mm).
Average rainfall days in December
San Juan Comaltepec, Mexico
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is September (28.8 days).
The month with the least rainy days is February (7 days).
Average daylight in December /
Average sunshine in December
San Juan Comaltepec, Mexico
- Average daylight in December: 11h and 6min
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 6min).
- Average sunshine in December: 8h and 6min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in December
San Juan Comaltepec, Mexico
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is September (0.4 days).
Average UV index in December
San Juan Comaltepec, Mexico
- Average UV index in December: 4
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, October, November and December (UV index 4).
Average cloud cover in December
San Juan Comaltepec, Mexico
- Average cloud cover in December: 28
The month with the most cloud cover is September (Cloud cover 54).
The month with the least cloud cover is March (Cloud cover 21).
Average visibility in December
San Juan Comaltepec, Mexico
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April and May (9km).
The months with the lowest visibility are July, August, September, October and November (7km).
