December weather forecastPetatlán, Mexico
December
Weather in December
The first month of the winter, December, is still a warm month in Petatlán, Mexico, with an average temperature ranging between max 28.5°C (83.3°F) and min 21.5°C (70.7°F).Temperature
December stands out as Petatlán's coldest month, with temperatures ranging between an average high of 28.5°C (83.3°F) and a low of 21.5°C (70.7°F).Heat index
For most parts of December, the heat index is computed to be a tropical 31°C (87.8°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Petatlán, Mexico, the average relative humidity in December is 68%.Rainfall
In Petatlán, in December, it is raining for 3.6 days, with typically 4mm (0.16") of accumulated precipitation. In Petatlán, Mexico, during the entire year, the rain falls for 147.9 days and collects up to 625mm (24.61") of precipitation.Daylight
December has the shortest days of the year in Petatlán, with an average of 11h and 6min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 6:08 pm. On the last day of December, sunrise is at 7:15 am and sunset at 6:21 pm CST.
Sunshine
January through May and December, with an average of 9.9h of sunshine, are months with the most sunshine.UV index
The months with the lowest UV index in Petatlán, Mexico, are January, February, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 6 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Petatlán, Mexico
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is May (30.5°C).
The month with the lowest average high temperature is December (28.5°C).
- Average low temperature in December: 21.5°C
The month with the highest average low temperature is June (23.8°C).
The coldest month (with the lowest average low temperature) is February (20.8°C).
Average pressure in December
Petatlán, Mexico
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The months with the lowest atmospheric pressure are May and June (1010.6mbar).
Average wind speed in December
Petatlán, Mexico
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in December
Petatlán, Mexico
- Average humidity in December: 68%
The months with the highest relative humidity are September and October (78%).
The month with the lowest relative humidity is April (58%).
Average rainfall in December
Petatlán, Mexico
- Average rainfall in December: 4mm
The wettest month (with the highest rainfall) is September (191mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in December
Petatlán, Mexico
- Average rainfall days in December: 3.6 days
The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is February (1.6 days).
Average daylight in December /
Average sunshine in December
Petatlán, 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: 9h and 54min
The months with the most sunshine are January, February, March, April, May and December (Average sunshine: 9h and 54min).
The month with the least sunshine is September (Average sunshine: 8h and 36min).
Average sunshine days in December
Petatlán, Mexico
- Average sunshine days in December: 24.7 days
The month with the most sunshine days is March (28.9 days).
The month with the least sunshine days is September (1.5 days).
Average UV index in December
Petatlán, Mexico
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in December
Petatlán, Mexico
- Average cloud cover in December: 10
The month with the most cloud cover is September (Cloud cover 38).
The month with the least cloud cover is April (Cloud cover 7).
Average visibility in December
Petatlán, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
