December weather forecast
Carmel Valley, CA

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Weather in December

December, the first month of the winter in Carmel Valley, is still a refreshing month, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 46.2°F (7.9°C).

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 57.2°F (14°C) and a low of 46.2°F (7.9°C).

Humidity

In Carmel Valley, the average relative humidity in December is 71%.

Rainfall

December is the month with the most rainfall. Rain falls for 9.4 days and accumulates 1.77" (45mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:00 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:01 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 6h of sunshine.

UV index

February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 3 during December, leads to the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Carmel Valley's December weather, with an average high temperature of 57.2°F (14°C) and an average low temperature of 46.2°F (7.9°C), tends to be the coldest of the year.

What is the usual temperature for Carmel Valley in December?

In December, in Carmel Valley, the average high-temperature is 57.2°F (14°C), and the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in December?

In Carmel Valley, the average relative humidity in December is 71%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 9.4 days and typically aggregates up to 1.77" (45mm) of precipitation.

How many days does it rain in December?

In Carmel Valley, during December, the rain falls for 9.4 days and regularly aggregates up to 1.77" (45mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

In Carmel Valley, the average day length in December is 9h and 43min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:00 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:01 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration in Carmel Valley is 6h.

What are the months with the lowest UV index?

The months with the lowest UV index in Carmel Valley are February and December, with an average maximum UV index of 3.

How high is the UV index in December?

In Carmel Valley, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Carmel Valley, CA

Average temperature in December - Carmel Valley, CA
  • Average high temperature in December: 57.2°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (57.2°F).

  • Average low temperature in December: 46.2°F

The month with the highest average low temperature is August (55.4°F).
The coldest months (with the lowest average low temperature) are February, March and December (46.2°F).

Average pressure in December
Carmel Valley, CA

Average pressure in December - Carmel Valley, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

Average wind speed in December
Carmel Valley, CA

Average wind speed in December - Carmel Valley, CA
  • Average wind speed in December: 6.5mph

The windiest months (with the highest average wind speed) are April and May (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Carmel Valley, CA

Average humidity in December - Carmel Valley, CA
  • Average humidity in December: 71%

The months with the highest relative humidity are March, May and August (76%).
The month with the lowest relative humidity is November (68%).

Average rainfall in December
Carmel Valley, CA

Average rainfall in December - Carmel Valley, CA
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in December
Carmel Valley, CA

Average rainfall days in December - Carmel Valley, CA
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (1.1 days).

Average daylight in December /
Average sunshine in December
Carmel Valley, CA

Average daylight in December / Average sunshine in December - Carmel Valley, CA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 6h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).

Average sunshine days in December
Carmel Valley, CA

Average sunshine days in December - Carmel Valley, CA
  • Average sunshine days in December: 20.4 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (18.3 days).

Average UV index in December
Carmel Valley, CA

Average UV index in December - Carmel Valley, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and December (UV index 3).

Average cloud cover in December
Carmel Valley, CA

Average cloud cover in December - Carmel Valley, CA
  • Average cloud cover in December: 32

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 10).

Average visibility in December
Carmel Valley, CA

Average visibility in December - Carmel Valley, CA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Carmel Valley, California, USA

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