Chula Vista
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Chula Vista, CA

Wood and rope barriers at sunset on the waterfront of Bayside Park in Chula Vista, San Diego Bay, California
Wood and rope barriers at sunset on the waterfront of Bayside Park in Chula Vista, San Diego Bay, California
The first month of the winter, December, is still a comfortable month in Chula Vista, California, with average temperature varying between 67.5°F (19.7°C) and 45.3°F (7.4°C).

Temperature

December is the coldest month, with an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 45.3°F (7.4°C).

Rainfall

In Chula Vista, during December, the rain falls for 4.5 days and regularly aggregates up to 1.3" (33.3mm) of precipitation. Throughout the year, there are 32.4 rainfall days, and 9.6" (245mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature is 60.4°F (15.8°C).
Note: For most, swimming in 60.4°F (15.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

The month with the shortest days is December, with an average of 10h of daylight.

What is the coldest month in Chula Vista?

December is the coldest month in Chula Vista, California, with an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 45.3°F (7.4°C).

What is the temperature in December in Chula Vista?

In December, the average high-temperature is 67.5°F (19.7°C), and the average low-temperature is 45.3°F (7.4°C).

How many days does it rain in December in Chula Vista?

In December, the rain falls for 4.5 days. Throughout December, 1.3" (33.3mm) of precipitation is accumulated.

What is the ocean temperature in December in Chula Vista?

In Chula Vista, the average seawater temperature in December is 60.4°F (15.8°C). For swimming, a surface water temperature of 60.4°F (15.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days in Chula Vista?

The month with the shortest days in Chula Vista, California, is December, with an average of 10h of daylight.

How many hours of daylight does Chula Vista have in December?

In Chula Vista, California, the average length of the day in December is 10h.
Average temperature in December - Chula Vista, CA
  • Average high temperature in December: 67.4°F

The warmest month (with the highest average high temperature) is September (78°F).
The month with the lowest average high temperature is December (67.4°F).

  • Average low temperature in December: 45.3°F

The month with the highest average low temperature is August (65.6°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

Average rainfall in December - Chula Vista, CA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is February (2.3").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in December - Chula Vista, CA
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is February (6.6 days).
Months with the lowest number of rainy days are July and August (0.3 days).

Average sea temperature in December - Chula Vista, CA
  • Average sea temperature in December: 60.4°F

The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).

Average daylight in December - Chula Vista, CA
  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).