December weather forecastPuerto Morelos, Mexico
December
Weather in December
December in Puerto Morelos marks the transition into winter with further reduction in rainfall to 53mm (2.09"). The temperature follows a similar downward trend. Reduced daylight hours indicate the shortening of days characteristic of winter. Despite the cooler temperatures, the sea retains much of its warmth from the past months, inviting for a swim. The light increase in wind speed creates a refreshing atmosphere, complementing the typically sunny weather condition.Temperature
The arrival of December sees a recorded average high-temperature of a still warm 27.2°C (81°F), showing little divergence from the previous month's conditions. December nighttime temperatures hover close to the daytime peak with an average of 23.3°C (73.9°F).Heat index
December's average heat index is estimated at a hot 30°C (86°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In December, the average relative humidity is 77%.Rainfall
In Puerto Morelos, in December, during 17.9 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Puerto Morelos, during the entire year, the rain falls for 227.4 days and collects up to 1021mm (40.2") of precipitation.Sea temperature
In December, the average sea temperature is 27°C (80.6°F).Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.
Daylight
The month with the shortest days is December, with an average of 10h and 54min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 6:05 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 6:17 pm EST.
Sunshine
The average sunshine in December is 8.4h.UV index
January, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 6 in December translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take note! The UV strength of the Sun elevates when reflected off water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Puerto Morelos, Mexico
- Average high temperature in December: 27.2°C
The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (26.1°C).
- Average low temperature in December: 23.3°C
The month with the highest average low temperature is August (27°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).
Average pressure in December
Puerto Morelos, Mexico
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is January (1017.6mbar).
The month with the lowest atmospheric pressure is September (1012.4mbar).
Average wind speed in December
Puerto Morelos, Mexico
- Average wind speed in December: 14.5km/h
The windiest month (with the highest average wind speed) is March (16.1km/h).
The calmest months (with the lowest average wind speed) are July, August and September (11.9km/h).
Average humidity in December
Puerto Morelos, Mexico
- Average humidity in December: 77%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is March (74%).
Average rainfall in December
Puerto Morelos, Mexico
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is June (169mm).
The driest month (with the least rainfall) is March (24mm).
Average rainfall days in December
Puerto Morelos, Mexico
- Average rainfall days in December: 17.9 days
The month with the highest number of rainy days is September (24.8 days).
The month with the least rainy days is February (12.6 days).
Average sea temperature in December
Puerto Morelos, Mexico
- Average sea temperature in December: 27°C
The best months for swimming (with the highest average sea temperature) are July, August, September and October (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).
Average daylight in December /
Average sunshine in December
Puerto Morelos, Mexico
- Average daylight in December: 10h and 54min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 48min).
Average sunshine days in December
Puerto Morelos, Mexico
- Average sunshine days in December: 7 days
The month with the most sunshine days is March (13.6 days).
The month with the least sunshine days is September (2.9 days).
Average UV index in December
Puerto Morelos, Mexico
- Average UV index in December: 6
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).
Average cloud cover in December
Puerto Morelos, Mexico
- Average cloud cover in December: 36
The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Puerto Morelos, 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).
