December weather forecast
Acapulco, Mexico

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Palm trees and a lovely white sandy beach in Acapulco, Mexico
Palm trees and a lovely white sandy beach in Acapulco, Mexico

Weather in December

December is the second-driest month in Acapulco following March, with the least rainfall of just 4mm (0.16"). Temperature drops marginally compared to November, yet it continues to maintain the city's warmth. Clear skies and high visibility makes it a perfect month for sightseeing without interruptions. The sea temperature is still warm enough for swimming and other water activities, attracting holiday-makers. The overall mild and pleasant conditions provides a perfect end to the year in this tropical paradise.

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 29.3°C (84.7°F) and a low of 22.9°C (73.2°F).

Heat index

The average heat index in December is evaluated at a hot 33°C (91.4°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

In Acapulco, the average relative humidity in December is 68%.

Rainfall

In Acapulco, Mexico, in December, during 3.2 rainfall days, 4mm (0.16") of precipitation is typically accumulated. Throughout the year, in Acapulco, there are 144.3 rainfall days, and 800mm (31.5") of precipitation is accumulated.

Sea temperature

In Acapulco, the average seawater temperature in December is 28.8°C (83.8°F).
Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.

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 6:52 am and sunset at 6:04 pm. On the last day of December, in Acapulco, sunrise is at 7:08 am and sunset at 6:16 pm CST.

Sunshine

In Acapulco, the average sunshine in December is 9.9h.

UV index

The months with the highest UV index in Acapulco are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Acapulco are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
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Frequently asked questions

What is the coldest month in Acapulco?

December is the coldest month in Acapulco, Mexico, exhibiting average temperatures of 29.3°C (84.7°F) at the peak and 22.9°C (73.2°F) at the base.

Is it hot in Acapulco during December?

In December, in Acapulco, the average high-temperature is 29.3°C (84.7°F), and the average low-temperature is 22.9°C (73.2°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is evaluated at 33°C (91.4°F).

What is the average humidity in December in Acapulco?

In Acapulco, the average relative humidity in December is 68%.

How much does it rain in Acapulco in December?

In Acapulco, in December, during 3.2 rainfall days, 4mm (0.16") of precipitation is typically accumulated.

What is the water temperature in December in Acapulco?

In Acapulco, the average seawater temperature in December is 28.8°C (83.8°F). 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.

What is the month with the shortest days in Acapulco?

December has the shortest days of the year in Acapulco, Mexico, with an average of 11h and 6min of daylight.

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

In Acapulco, Mexico, the average day length in December is 11h and 8min.

When are sunrise and sunset in December in Acapulco?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 6:04 pm. On the last day of the month, in Acapulco, sunrise is at 7:08 am and sunset at 6:16 pm CST.

How long on average sun shines in December in Acapulco?

The average sunshine duration in December in Acapulco, Mexico, is 9.9h.

When is the highest UV index in Acapulco?

January through December, with an average maximum UV index of 7, are months with the highest UV index.

What are the months with the lowest UV index in Acapulco?

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

What is the UV index intensity in December in Acapulco?

In December, the average daily maximum UV index in Acapulco is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.

Average temperature in December
Acapulco, Mexico

Average temperature in December - Acapulco, Mexico
  • Average high temperature in December: 29.3°C

The warmest month (with the highest average high temperature) is May (31.3°C).
The month with the lowest average high temperature is December (29.3°C).

  • Average low temperature in December: 22.9°C

The month with the highest average low temperature is June (25.3°C).
The coldest months (with the lowest average low temperature) are January and February (22.5°C).

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Average pressure in December
Acapulco, Mexico

Average pressure in December - Acapulco, Mexico
  • Average pressure in December: 1012.7mbar

The month with the highest atmospheric pressure is January (1013.2mbar).
The month with the lowest atmospheric pressure is May (1010.7mbar).

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Average wind speed in December
Acapulco, Mexico

Average wind speed in December - Acapulco, Mexico
  • Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest month (with the lowest average wind speed) is December (7.6km/h).

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Average humidity in December
Acapulco, Mexico

Average humidity in December - Acapulco, Mexico
  • Average humidity in December: 68%

The months with the highest relative humidity are September and October (77%).
The months with the lowest relative humidity are March and April (62%).

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Average rainfall in December
Acapulco, Mexico

Average rainfall in December - Acapulco, Mexico
  • Average rainfall in December: 4mm

The wettest month (with the highest rainfall) is September (225mm).
The driest month (with the least rainfall) is April (0mm).

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Average rainfall days in December
Acapulco, Mexico

Average rainfall days in December - Acapulco, Mexico
  • Average rainfall days in December: 3.2 days

The month with the highest number of rainy days is September (25.8 days).
The month with the least rainy days is February (0.9 days).

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Average sea temperature in December
Acapulco, Mexico

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).

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Average daylight in December /
Average sunshine in December
Acapulco, Mexico

Average daylight in December / Average sunshine in December - Acapulco, Mexico
  • Average daylight in December: 11h and 1min

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: 9h and 5min

The months with the most sunshine are March and April (Average sunshine: 10h and 0min).
The month with the least sunshine is September (Average sunshine: 8h and 48min).

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Average sunshine days in December
Acapulco, Mexico

Average sunshine days in December - Acapulco, Mexico
  • Average sunshine days in December: 26.5 days

The month with the most sunshine days is March (29.9 days).
The month with the least sunshine days is September (3.2 days).

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Average UV index in December
Acapulco, Mexico

Average UV index in December - Acapulco, Mexico
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover in December
Acapulco, Mexico

Average cloud cover in December - Acapulco, Mexico
  • Average cloud cover in December: 9

The month with the most cloud cover is September (Cloud cover 36).
The months with the least cloud cover are March and April (Cloud cover 7).

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Average visibility in December
Acapulco, Mexico

Average visibility in December - Acapulco, 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).

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Acapulco, Mexico

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