December weather forecast
Puerto Vallarta, Mexico

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A picturesque city Vallarta in Mexico
A picturesque city Vallarta in Mexico

Weather in December

December consolidates the arrival of winter, further lowering of temperatures seals the mild and amicable winter season. Despite this, the city's charm remains undiminished with pleasant weather inviting many tourists to spend their holidays. A further drop in rainfall to 28mm (1.1") places December firmly within the dry season. Sea temperatures drop to 25.3°C (77.5°F), with decreasing daylight hours at 10.9 per day. As Puerto Vallarta finds itself in the throes of winter, it stylishly rounds out the weather cycle, ready to welcome the New Year with favourable conditions.

Temperature

The commencement of December introduces an average high-temperature of a still warm 26.4°C (79.5°F), closely mirroring the preceding month. Puerto Vallarta experiences an average temperature drop to a comfortable 17.4°C (63.3°F) during December nights.

Humidity

In Puerto Vallarta, the average relative humidity in December is 71%.

Rainfall

In Puerto Vallarta, Mexico, in December, during 6.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Puerto Vallarta, during the entire year, the rain falls for 153.3 days and collects up to 735mm (28.94") of precipitation.

Sea temperature

In December, the average sea temperature is 25.3°C (77.5°F).
Note: For any water activity, surface water temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed perfect and extremely pleasing for enduring enjoyment.

Daylight

December has the shortest days of the year, with an average of 10h and 54min of daylight.
On the first day of December in Puerto Vallarta, sunrise is at 7:21 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:31 pm CST.

Sunshine

The average sunshine in December in Puerto Vallarta is 9.6h.

UV index

With an average maximum UV index of 5, December is the month with the lowest UV index in Puerto Vallarta. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 5 in December translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Updated: Feb 8, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the average December temperature in Puerto Vallarta?

The high-temperature, in December, in Puerto Vallarta, records 26.4°C (79.5°F), while the low-temperature is 17.4°C (63.3°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in November is appraised at 31°C (87.8°F).

What is the average humidity in December in Puerto Vallarta?

The average relative humidity in December is 71%.

How much does it rain in Puerto Vallarta in December?

In Puerto Vallarta, Mexico, during December, the rain falls for 6.5 days and regularly aggregates up to 28mm (1.1") of precipitation.

What is the sea water temperature in December in Puerto Vallarta?

In Puerto Vallarta, Mexico, in December, the average water temperature is 25.3°C (77.5°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 Puerto Vallarta?

December has the shortest days of the year in Puerto Vallarta, Mexico, with an average of 10h and 54min of daylight.

What is the average length of the day in December in Puerto Vallarta?

In Puerto Vallarta, Mexico, the average day length in December is 10h and 54min.

What time are sunrise and sunset in December in Puerto Vallarta?

On the first day of December, sunrise is at 7:21 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:31 pm CST.

How long on average sun shines in December in Puerto Vallarta?

The average sunshine duration in December in Puerto Vallarta, Mexico, is 9.6h.

When is the lowest UV index in Puerto Vallarta?

The month with the lowest UV index in Puerto Vallarta is December, with an average maximum UV index of 5.

How high is the UV index in December in Puerto Vallarta?

In Puerto Vallarta, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.

Average temperature in December
Puerto Vallarta, Mexico

Average temperature in December - Puerto Vallarta, Mexico
  • Average high temperature in December: 26.4°C

The warmest month (with the highest average high temperature) is May (30.4°C).
The month with the lowest average high temperature is January (26.3°C).

  • Average low temperature in December: 17.4°C

The month with the highest average low temperature is August (22.1°C).
The coldest month (with the lowest average low temperature) is February (16.4°C).

Average pressure in December
Puerto Vallarta, Mexico

Average pressure in December - Puerto Vallarta, Mexico
  • Average pressure in December: 1014.1mbar

The month with the highest atmospheric pressure is January (1014.7mbar).
The month with the lowest atmospheric pressure is September (1010.9mbar).

Average wind speed in December
Puerto Vallarta, Mexico

Average wind speed in December - Puerto Vallarta, Mexico
  • Average wind speed in December: 6.5km/h

The windiest month (with the highest average wind speed) is March (7km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).

Average humidity in December
Puerto Vallarta, Mexico

Average humidity in December - Puerto Vallarta, Mexico
  • Average humidity in December: 71%

The months with the highest relative humidity are August and September (84%).
The months with the lowest relative humidity are March and April (60%).

Average rainfall in December
Puerto Vallarta, Mexico

Average rainfall in December - Puerto Vallarta, Mexico
  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is August (167mm).
The driest month (with the least rainfall) is April (1mm).

Average rainfall days in December
Puerto Vallarta, Mexico

Average rainfall days in December - Puerto Vallarta, Mexico
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is August (27.7 days).
The month with the least rainy days is April (2.1 days).

Average sea temperature in December
Puerto Vallarta, Mexico

Average sea temperature in December - Puerto Vallarta, Mexico
  • Average sea temperature in December: 25.3°C

The best months for swimming (with the highest average sea temperature) are August and September (30.3°C).
The coldest months (with the lowest average sea temperature) are February and March (23.9°C).

Average daylight in December /
Average sunshine in December
Puerto Vallarta, Mexico

Average daylight in December / Average sunshine in December - Puerto Vallarta, Mexico
  • Average daylight in December: 10h and 5min

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: 9h and 4min

The month with the most sunshine is May (Average sunshine: 9h and 48min).
The months with the least sunshine are August and September (Average sunshine: 8h and 24min).

Average sunshine days in December
Puerto Vallarta, Mexico

Average sunshine days in December - Puerto Vallarta, Mexico
  • Average sunshine days in December: 22.2 days

The month with the most sunshine days is April (28.1 days).
The month with the least sunshine days is August (2.7 days).

Average UV index in December
Puerto Vallarta, Mexico

Average UV index in December - Puerto Vallarta, Mexico
  • Average UV index in December: 5

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 6).
The month with the lowest UV index is December (UV index 5).

Average cloud cover in December
Puerto Vallarta, Mexico

Average cloud cover in December - Puerto Vallarta, Mexico
  • Average cloud cover in December: 13

The month with the most cloud cover is August (Cloud cover 43).
The months with the least cloud cover are March and May (Cloud cover 10).

Average visibility in December
Puerto Vallarta, Mexico

Average visibility in December - Puerto Vallarta, Mexico
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).

Puerto Vallarta, Mexico

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