Acapulco
Mexico
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Acapulco, Mexico

Palm trees and a lovely white sandy beach in Acapulco, Mexico, with a distant view of the city structures and a mountain
Palm trees and a lovely white sandy beach in Acapulco, Mexico, with a distant view of the city structures and a mountain
December, the first month of the winter, in Acapulco, is still a hot month, with average temperature ranging between min 24.1°C (75.4°F) and max 30.9°C (87.6°F).
The ideal sea water temperature of 28.8°C (83.8°F) and only 0.8 rainfall days, with 10.8mm (0.4") of accumulated rainfall, make December the best time for swimming and other water activities.

Temperature

In Acapulco, the average high-temperature in December is relatively the same as in November - a still tropical 30.9°C (87.6°F). In December, the average low-temperature is 24.1°C (75.4°F).

Heat index

In December, the average heat index is calculated to a very hot 38.9°C (102°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, wind, clothing, and metabolic differences affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in Acapulco is 75%.

Rainfall

In Acapulco, it is raining for 0.8 days, with typically 10.8mm (0.4") of accumulated precipitation. Throughout the year, there are 67.6 rainfall days, and 1336.8mm (52.6") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 28.8°C (83.8°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 11.1h of daylight, December has the shortest days of the year in Acapulco.

Sunshine

In Acapulco, the average sunshine is 8.2h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 8 interpret into the following advice:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in December in Acapulco?

In Acapulco, Mexico, in December, the average high-temperature is 30.9°C (87.6°F), and the average low-temperature is 24.1°C (75.4°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, in December is calculated to 38.9°C (102°F).

What is the average humidity in December in Acapulco?

In December, the average relative humidity in Acapulco, Mexico, is 75%.

How many days does it rain in December in Acapulco?

In Acapulco, in December, it is raining for 0.8 days, with typically 10.8mm (0.4") of accumulated precipitation.

What is the water temperature in December in Acapulco?

In Acapulco, Mexico, in December, the average water temperature is 28.8°C (83.8°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the month with the shortest days in Acapulco?

December has the shortest days of the year, with an average of 11.1h of daylight.

What is the average length of the day in December in Acapulco?

In Acapulco, Mexico, the average length of the day in December is 11.1h.

How long on average sun shines in December in Acapulco?

In December, the average sunshine in Acapulco, Mexico, is 8.2h.

When is the lowest UV index in Acapulco?

December is the month with the lowest UV index, with an average maximum UV index of 8.

How high is the UV index in December in Acapulco?

The average daily maximum UV index in December in Acapulco is 8. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV rays.
Average temperature in December - Acapulco, Mexico
  • Average high temperature in December: 30.9°C

The warmest month (with the highest average high temperature) is July (32.3°C).
Months with the lowest average high temperature are January, February and March (30.4°C).

  • Average low temperature in December: 24.1°C

The month with the highest average low temperature is June (25.2°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).

Average humidity in December - Acapulco, Mexico
  • Average humidity in December: 75%

The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (72%).

Average rainfall in December - Acapulco, Mexico
  • Average rainfall in December: 10.8mm

The wettest month (with the highest rainfall) is September (309.6mm).
The driest month (with the lowest rainfall) is March (2.2mm).

Average rainfall days in December - Acapulco, Mexico
  • Average rainfall days in December: 0.8 days

The month with the highest number of rainy days is September (14.3 days).
The month with the lowest number of rainy days is April (0.2 days).

Average sea temperature in December - Acapulco, Mexico
  • Average sea temperature in December: 28.8°C

The best month for swimming (with the highest average sea temperature) is August (30°C).
The coldest month (with the lowest average sea temperature) is March (27.7°C).

Average daylight in December / Average sunshine in December - Acapulco, Mexico
  • Average daylight in December: 11.1h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in December: 8.2h

The month with most sunshine is March (Average sunshine: 9.3h).
The month with least sunshine is September (Average sunshine: 6.5h).

Average UV index in December - Acapulco, Mexico
  • Average UV index in December: 8

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).