December weather forecast
Nuevo Vallarta, Mexico

December

Weather in December

December heralds the start of winter with temperatures varying between 17.4°C (63.3°F) and 26.4°C (79.5°F). Relative humidity stabilizes at 71%, keeping the climate pleasant and suited for holidays. Rainfall is at its second lowest for the year, registering 28mm (1.1") over roughly seven days of the month. The sun shines for almost 9.6 hours a day, admirably standing up to winter conditions. Visibility stays constant at 10km (6.2mi), enriching travels around Nuevo Vallarta with unhindered views.

Temperature

At the onset of December, Nuevo Vallarta records an average high-temperature of a still warm 26.4°C (79.5°F), showing little deviation from the preceding month. Throughout the month of December, Nuevo Vallarta expects an average low of 17.4°C (63.3°F).

Humidity

In December, the average relative humidity is 71%.

Rainfall

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

Daylight

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

Sunshine

In Nuevo Vallarta, the average sunshine in December is 9.6h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 5 during December translates into the following guidance:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

What is the usual temperature for Nuevo Vallarta in December?
The average high-temperature and low-temperature during December are 26.4°C (79.5°F) and 17.4°C (63.3°F) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in November is computed to be 31°C (87.8°F).
What is the average humidity in December?
In Nuevo Vallarta, the average relative humidity in December is 71%.
How much does it rain in December?
In Nuevo Vallarta, during December, the rain falls for 6.5 days and regularly aggregates up to 28mm (1.1") of precipitation.
What is the month with the shortest days?
With an average of 10h and 54min of daylight, December has the shortest days of the year.
What is the average length of the day in December?
In December, the average day length is 10h and 54min.
When are sunrise and sunset in December?
In December, on the first day of the month, 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 many hours of sunshine does Nuevo Vallarta have in December?
The average sunshine duration in December is 9.6h.
What is the month with the lowest UV index in Nuevo Vallarta?
With an average maximum UV index of 5, December is the month with the lowest UV index.
What is the UV index intensity in December?
In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Nuevo Vallarta, Mexico
Average temperature in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average pressure in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average wind speed in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average humidity in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average rainfall in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average rainfall days in December
Nuevo 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 daylight in December / Average sunshine in December - Nuevo Vallarta, Mexico
Average daylight in December /
Average sunshine in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average sunshine days in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average UV index in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average cloud cover in December
Nuevo 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 - Nuevo Vallarta, Mexico
Average visibility in December
Nuevo 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).

englishespañol中文
Share