December weather forecastPetapa, Mexico
December
Weather in December
The first month of the winter, December, is still a warm month in Petapa, Mexico, with temperature in the range of an average low of 19.3°C (66.7°F) and an average high of 28.3°C (82.9°F).Temperature
A minor adjustment in Petapa's average high-temperature is noted with the start of December, touching a still warm 28.3°C (82.9°F) from November's 28.8°C (83.8°F). An average temperature of 19.3°C (66.7°F) marks the nights in December.Heat index
December's heat index is estimated at a hot 31°C (87.8°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In December, the average relative humidity is 71%.Rainfall
The months with the least rainfall are February, March, November and December Rain falls for 2.4 days and accumulates 2mm (0.08") of rain.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 6:33 am and sunset at 5:45 pm. On the last day of December, sunrise is at 6:49 am and sunset at 5:58 pm CST.
Sunshine
With an average of 7.5h of sunshine, December has the least sunshine of the year.UV index
January, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 6 turns into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Petapa, Mexico
- Average high temperature in December: 28.3°C
The warmest month (with the highest average high temperature) is May (35°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in December: 19.3°C
The month with the highest average low temperature is May (23.8°C).
The coldest month (with the lowest average low temperature) is January (18.4°C).
Average pressure in December
Petapa, Mexico
- Average pressure in December: 1014.8mbar
The month with the highest atmospheric pressure is January (1015.8mbar).
The month with the lowest atmospheric pressure is May (1011.3mbar).
Average wind speed in December
Petapa, Mexico
- Average wind speed in December: 16.1km/h
The windiest month (with the highest average wind speed) is January (17.4km/h).
The calmest month (with the lowest average wind speed) is June (8.9km/h).
Average humidity in December
Petapa, Mexico
- Average humidity in December: 71%
The month with the highest relative humidity is September (75%).
The months with the lowest relative humidity are April and May (62%).
Average rainfall in December
Petapa, Mexico
- Average rainfall in December: 2mm
The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are February, March, November and December (2mm).
Average rainfall days in December
Petapa, Mexico
- Average rainfall days in December: 2.4 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2.1 days).
Average daylight in December /
Average sunshine in December
Petapa, 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: 7h and 30min
The month with the most sunshine is May (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in December
Petapa, Mexico
- Average sunshine days in December: 26.5 days
The month with the most sunshine days is December (26.5 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in December
Petapa, Mexico
- Average UV index in December: 6
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in December
Petapa, Mexico
- Average cloud cover in December: 14
The months with the most cloud cover are June and September (Cloud cover 36).
The months with the least cloud cover are March and December (Cloud cover 14).
Average visibility in December
Petapa, 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).
