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United States weather

Weather in Monterey County, California for December 2026

Your guide to Monterey County weather in December - trends and predictions

    Rain 🌧️

  • Monterey County experiences moderate rainfall in December, with an average of 7 rainy days and a total precipitation of 129.4 mm.

    • More

  • Is December a good time to visit Monterey County? check out the best time to travel to Monterey County page.

  • ✨ Is December a good time to visit Monterey County? – Ask the AI Weatherman

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/10°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Monterey County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
17°
2
Cloudy
15°
3
Cloudy
14°
4
Cloudy
15°
5
Cloudy
15°
6
Cloudy
14°
7
Overcast
13°
8
Overcast
15°
9
Sunny
15°
10
Sunny
17°
11
Overcast
16°
12
Moderate rain
13°
13
Overcast
14°
14
Moderate rain
13°
15
Cloudy
12°
16
Moderate or heavy rain shower
14°
17
Cloudy
15°
18
Overcast
15°
19
Sunny
17°
20
Partly cloudy
16°
21
Patchy rain possible
15°
22
Moderate rain
15°
23
Overcast
16°
24
Moderate rain
15°
25
Moderate rain
13°
26
Moderate rain at times
14°
27
Moderate rain
13°
28
Overcast
13°
29
Light rain
15°
30
Cloudy
15°
31
Light rain
13°

Temperatures trend during December in Monterey County

See the weather trend as well as the moving average line

December weather in Monterey County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Cloudy
Cloudy
 17° /10° 0 mm 2.6
Dec. 2 Cloudy
Cloudy
 15° /9° 0 mm 2.5
Dec. 3 Cloudy
Cloudy
 14° /8° 0 mm 2.5
Dec. 4 Cloudy
Cloudy
 15° /9° 0 mm 2.5
Dec. 5 Cloudy
Cloudy
 15° /10° 0 mm 2.5
Dec. 6 Cloudy
Cloudy
 14° /9° 0 mm 2.5
Dec. 7 Overcast
Overcast
 13° /9° 0 mm 2.4
Dec. 8 Overcast
Overcast
 15° /10° 0 mm 2.4
Dec. 9 Sunny
Sunny
 15° /10° 0 mm 2.4
Dec. 10 Sunny
Sunny
 17° /10° 0 mm 2.4
Dec. 11 Overcast
Overcast
 16° /11° 0 mm 2.4
Dec. 12 Moderate rain
Moderate rain
 13° /9° 10.2 mm 2.4
Dec. 13 Overcast
Overcast
 14° /9° 0.2 mm 2.4
Dec. 14 Moderate rain
Moderate rain
 13° /9° 11 mm 2.4
Dec. 15 Cloudy
Cloudy
 12° /8° 0 mm 2.3
Dec. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /11° 5.2 mm 2.3
Dec. 17 Cloudy
Cloudy
 15° /11° 0 mm 2.3
Dec. 18 Overcast
Overcast
 15° /10° 0 mm 2.3
Dec. 19 Sunny
Sunny
 17° /12° 0 mm 2.3
Dec. 20 Partly cloudy
Partly cloudy
 16° /12° 0 mm 2.3
Dec. 21 Patchy rain possible
Patchy rain possible
 15° /12° 2 mm 2
Dec. 22 Moderate rain
Moderate rain
 15° /12° 20.4 mm 2
Dec. 23 Overcast
Overcast
 16° /12° 0.1 mm 2
Dec. 24 Moderate rain
Moderate rain
 15° /12° 24.1 mm 2
Dec. 25 Moderate rain
Moderate rain
 13° /11° 23.2 mm 2
Dec. 26 Moderate rain at times
Moderate rain at times
 14° /11° 8.1 mm 2
Dec. 27 Moderate rain
Moderate rain
 13° /11° 13.3 mm 2
Dec. 28 Overcast
Overcast
 13° /9° 0 mm 2
Dec. 29 Light rain
Light rain
 15° /8° 3 mm 2
Dec. 30 Cloudy
Cloudy
 15° /8° 0 mm 2
Dec. 31 Light rain
Light rain
 13° /9° 8.6 mm 2
Next
Important Notice
Our weather forecast for Monterey County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Monterey County forecast closer to your planned date for the most up-to-date weather information.
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Monterey County in December - FAQ

What are the expected maximum and minimum temperatures in Monterey County during December?
During December, expect a variety of temperatures with highs around 14° and lows near 10°, suitable for diverse activities and preferences.

How much rainfall should be expected in Monterey County during December?
Significant rainfall exceeding 129.4 mm is expected in Monterey County during December, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Monterey County during December?
The average wind speed in Monterey County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Monterey County

Explore the daily rainfall trends and prepare for Monterey Countys December weather 💧
Typically, Monterey County has 7 rainy days in December with a total of 129.4 mm of rainfall.
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