Monterey Weather in December: Temperature, Precipitation, Wind

Temperature
11.8°C
53.3°F
High temperature
16.8°C
62.3°F
Low temperature
7.8°C
46°F
Feels like
11.5°C
52.6°F
Rainy days
12 days
Rainfall level
2.93mm
0.12 inch
Cloud coverage
32.6%
Wind speed
15.1km/h
9.4mph
Daylight time
9:42:19
UV index
4.1
1
clear day
12.0°C
54.0°F
2
partly cloudy day
12.2°C
54.0°F
3
clear day
12.4°C
54.0°F
4
clear day
13.6°C
56.0°F
5
clear day
12.7°C
55.0°F
6
rain
12.2°C
54.0°F
7
rain
11.1°C
52.0°F
8
clear day
8.9°C
48.0°F
9
clear day
9.3°C
49.0°F
10
clear day
9.5°C
49.0°F
11
clear day
10.5°C
51.0°F
12
clear day
9.3°C
49.0°F
13
clear day
10.1°C
50.0°F
14
clear day
10.9°C
52.0°F
15
clear day
11.4°C
53.0°F
16
clear day
12.6°C
55.0°F
17
rain
13.1°C
56.0°F
18
rain
15.4°C
60.0°F
19
rain
14.7°C
58.0°F
20
rain
12.5°C
55.0°F
21
rain
12.1°C
54.0°F
22
partly cloudy day
13.1°C
56.0°F
23
partly cloudy day
12.3°C
54.0°F
24
clear day
9.7°C
49.0°F
25
clear day
9.9°C
50.0°F
26
clear day
10.3°C
51.0°F
27
rain
12.5°C
55.0°F
28
rain
14.0°C
57.0°F
29
rain
14.4°C
58.0°F
30
rain
12.7°C
55.0°F
31
rain
11.4°C
53.0°F

Monterey, United States in December experiences a mild Mediterranean climate characterized by cool temperatures and occasional rainfall. The average temperature hovers around 11.8°C (53.3°F), with daytime highs reaching 16.8°C (62.3°F) and nighttime lows dipping to 7.8°C (46.0°F). Residents and visitors to popular attractions like Cannery Row and Monterey Bay Aquarium feel temperatures averaging 11.5°C (52.6°F).

December in Monterey brings moderate humidity levels, averaging 77.9%. Precipitation is common during this month, with an average of 2.93 inches (74.4 mm) of rainfall. Rain occurs on approximately 12 days throughout December, covering 10.6% of the month. The most prevalent precipitation type is rain, and severe weather risk remains low at 10%.

Wind plays a significant role in Monterey’s December climate. Average wind speeds reach 15.1 mph (24.3 km/h), with gusts up to 30.3 mph (48.8 km/h). These winds contribute to the area’s reputation for excellent sailing and windsurfing conditions along the picturesque coastline.

Cloud cover in December averages 32.6%, allowing for ample sunshine. The UV index averages 4.1, indicating moderate sun intensity. Visibility extends to 15.1 miles (24.3 km), offering clear views of the stunning Pacific Ocean from vantage points like Pebble Beach and 17-Mile Drive.

Atmospheric pressure in Monterey during December averages 1020.2 millibars, contributing to the region’s stable weather patterns. Sunrise occurs at approximately 7:12 AM, while sunset takes place around 4:54 PM, providing about 9 hours and 42 minutes of daylight for outdoor activities in scenic locations such as Point Lobos State Natural Reserve.

What is the temperature in Monterey in December?

Average air temperature in Monterey is 11.8°C (53.3°F) in December. The outside temperature in Monterey feels like 11.5°C (52.6°F) on a typical December day. The highest average temperature during sunny days is 16.8°C (62.3°F) and feels like 16.8°C (62.3°F). The lowest average temperature after dark is 7.8°C (46°F) which feels like 6.5°C (43.6°F).

How hot is Monterey in December?

The hot temperature in December in Monterey rises to 21.3°C (70.3°F) on sunny days with low cloud coverage and 77.9% humidity. During hottest days of December it feels like 21.3 °C (70.3°F). The average maximum temp in Monterey is 16.8°C (70.3°F) during day time in December.

How cold is Monterey in December?

The coldest temp in Monterey in December drops to 2.5°C (36.5°F) during the cold nights. With 15.1km/h (9.4mph) winds and 77.9% humidity it feels like 1.3°C (34.3°F) on the coldest nights. The average minimum temperature is 7.8°C (46°F) during night time in December.

Does it rain in Monterey in December?

Yes, it rains for 12 days in Monterey, United States in December averaging 2.93 mm of precipitation. Monterey has a 38.7% chance for rain throughout the entire month of December.

How much does it rain in Monterey throughout December?

Monterey has 2.93 mm (0.12 inch) of rain per day on average in December. It rains for an average of 12 days out of the entire month.

Is Monterey windy in December?

The average speed of wind in Monterey, United States during December is 15.1km/h (9.4mph) and average windgust is 30.3km/h (18.8mph). On some days in December wind can reach up to 27.7km/h (17.2mph).

What is the direction of the wind in Monterey in December?

Most days of December the wind is blowing from Southeast direction in Monterey.

What are the humidity levels in Monterey in December?

The average humidity levels in Monterey in December are 77.9%. Daily humidity levels in Monterey range from 44.8% to 91.5% during December.

How many hours of daylight are in Monterey in December?

Monterey has 9 hours 42 minutes of daylight in December on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Monterey in December is at 7:12:13 and the sunset is at 16:54:33.

What is the cloud coverage in Monterey in December?

Clouds cover 32.6% of the sky on average throughout December in Monterey. The cloud coverage ranges from 0% to 94.8% depending on the day of the month.

What is the UV level in December in Monterey?

The average UV index in Monterey is 4.1 in December. UV levels change throughout the month and range from 1 to 5.

What is the solar radiation in Monterey in December?

The average solar radiation is 79.7 W/m2 (Watts per square meter) in Monterey during December. However solar radiation levels change throughout the month and range from 24.7 W/m2 to 122.9 W/m2.

What is the solar energy during December in Monterey?

The average solar energy during December in Monterey is 6.9 MJ/m2 (megajoules per square metre). Solar energy ranges from 2.2 MJ/m2, to 10.9 MJ/m2 during December.

Are there severe weather risks in Monterey in December?

Yes, there is a 10% risk for severe weather in Monterey, United States in December.

What is the air pressure in Monterey in December?

On average the air pressure in Monterey in December is 1020.2 mb (millibars). Throughout the month the sea level pressure ranges from 1008.8 mb to 1027.1 mb.

What is the visibility in Monterey in December?

The average daylight visibility in Monterey in December is 15.1 km (9.4 miles). Depending on the precipitation the visibility ranges from 11.2 km (7 miles) to 16 km (9.9 miles) throughout December.

What is the dew point in Monterey in December?

The average dew point in Monterey during December is 7.7°C (45.9°F).

Where is the data for Monterey climate in December coming from?

The climate data for Monterey, California, United States in December is collected from the following weather stations.

  • MONTEREY PENINSUL AIRPORT, CA US
  • SALINAS AIRPORT, CA US
  • WATSONVILLE MUNICIPAL AIRPORT, CA US
  • Pacific Grove CA US CIMIS
  • EW1554 Pacific Grove CA US
  • FW4453 Carmel CA US
  • MONTEREY PNINSLA, CA
  • KSNS