December weather forecastSumidero, Mexico
December
Weather in December
December, the first month of the winter in Sumidero, is still a pleasant month, with an average temperature fluctuating between 11.7°C (53.1°F) and 20.9°C (69.6°F).Temperature
Sumidero indicates an average high-temperature of a still pleasant 20.9°C (69.6°F) in December, showing minor variation from November's 21.2°C (70.2°F). During the nights in December, the temperature averages to a cool 11.7°C (53.1°F).Humidity
In December, the average relative humidity is 79%.Rainfall
The month with the least rainfall is December, when the rain falls for 11.3 days and typically collects 15mm (0.59") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 0min of daylight.On the first day of December, sunrise is at 6:45 am and sunset at 5:49 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:01 pm CST.
Sunshine
The average sunshine in December is 7.1h.UV index
The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 5 transforms into these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. 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
Sumidero, Mexico
- Average high temperature in December: 20.9°C
The warmest month (with the highest average high temperature) is April (27.2°C).
The month with the lowest average high temperature is January (19.8°C).
- Average low temperature in December: 11.7°C
The month with the highest average low temperature is May (16.8°C).
The coldest month (with the lowest average low temperature) is January (10.7°C).
Average pressure in December
Sumidero, Mexico
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).
Average wind speed in December
Sumidero, Mexico
- Average wind speed in December: 6km/h
The windiest month (with the highest average wind speed) is April (7.3km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).
Average humidity in December
Sumidero, Mexico
- Average humidity in December: 79%
The months with the highest relative humidity are September and October (83%).
The month with the lowest relative humidity is April (68%).
Average rainfall in December
Sumidero, Mexico
- Average rainfall in December: 15mm
The wettest month (with the highest rainfall) is June (185mm).
The driest month (with the least rainfall) is December (15mm).
Average rainfall days in December
Sumidero, Mexico
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is August (27.7 days).
The month with the least rainy days is December (11.3 days).
Average daylight in December /
Average sunshine in December
Sumidero, Mexico
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in December
Sumidero, Mexico
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is January (14.9 days).
The months with the least sunshine days are August and September (1 days).
Average UV index in December
Sumidero, Mexico
- Average UV index in December: 5
The months with the highest UV index are April and May (UV index 6).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Sumidero, Mexico
- Average cloud cover in December: 31
The month with the most cloud cover is September (Cloud cover 38).
The month with the least cloud cover is April (Cloud cover 25).
Average visibility in December
Sumidero, Mexico
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July and August (9km).
The months with the lowest visibility are January, September, October, November and December (8km).





