December weather forecastJonuta, Mexico
December
Weather in December
December, the first month of the winter in Jonuta, is also a moderately hot month, with an average temperature varying between 20°C (68°F) and 27.4°C (81.3°F).Temperature
With the advent of December, Jonuta experiences an average high-temperature of a still warm 27.4°C (81.3°F), mirroring a close resemblance to the previous month. Throughout December, Jonuta registers a consistent average low-temperature of 20°C (68°F).Heat index
In December, the average heat index is evaluated at a tropical 31°C (87.8°F). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Always consider that heat index estimations are for light winds and places in the shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
October through December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Jonuta, during December, the rain falls for 13.8 days and regularly aggregates up to 57mm (2.24") of precipitation. Throughout the year, in Jonuta, there are 208.1 rainfall days, and 1107mm (43.58") of precipitation is accumulated.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 6:24 am and sunset at 5:31 pm. On the last day of December, sunrise is at 6:39 am and sunset at 5:43 pm CST.
Sunshine
In December, the average sunshine in Jonuta is 6.3h.UV index
January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Jonuta. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 6 suggests this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jonuta, Mexico
- Average high temperature in December: 27.4°C
The warmest month (with the highest average high temperature) is May (35.4°C).
The month with the lowest average high temperature is January (26.7°C).
- Average low temperature in December: 20°C
The month with the highest average low temperature is May (25.1°C).
The coldest month (with the lowest average low temperature) is January (19.1°C).
Average pressure in December
Jonuta, Mexico
- Average pressure in December: 1015.7mbar
The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is May (1011mbar).
Average wind speed in December
Jonuta, Mexico
- Average wind speed in December: 7.9km/h
The windiest months (with the highest average wind speed) are March and July (9.4km/h).
The calmest month (with the lowest average wind speed) is October (6.7km/h).
Average humidity in December
Jonuta, Mexico
- Average humidity in December: 83%
The months with the highest relative humidity are October, November and December (83%).
The month with the lowest relative humidity is April (65%).
Average rainfall in December
Jonuta, Mexico
- Average rainfall in December: 57mm
The wettest month (with the highest rainfall) is October (179mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in December
Jonuta, Mexico
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is September (26.7 days).
The month with the least rainy days is March (8.8 days).
Average daylight in December /
Average sunshine in December
Jonuta, 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: 6h and 18min
The months with the most sunshine are May and July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in December
Jonuta, Mexico
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is March (20.8 days).
The month with the least sunshine days is September (2.2 days).
Average UV index in December
Jonuta, Mexico
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in December
Jonuta, Mexico
- Average cloud cover in December: 35
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 22).
Average visibility in December
Jonuta, Mexico
- Average visibility in December: 9km
The months with the highest visibility are March, April and May (10km).
The months with the lowest visibility are January, September and October (8km).





