Los Angeles weather in December
In December, Los Angeles has an average high of 19 °C66 °F and an average low of 9 °C48 °F, with about 65 mm2.6 in of precipitation. December is the coldest month of the year and ranks 3rd for precipitation.
How December compares with other months
Compared with November, December is 3.7 °C6.7 °F cooler on average and wetter by 40 mm1.6 in. Compared with January, December is about the same temperature and drier by 8 mm0.3 in. Daylight lasts about 9.9 hours around the middle of the month. Average relative humidity is 58% and the average cloud amount 42%.
Is December a good time to visit Los Angeles?
Yes — December is one of the most comfortable months to visit Los Angeles by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Los Angeles in December, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Los Angeles | 1966 | 948 | 652.6 |
| West Covina | 1966 | 947 | 652.6 |
| Long Beach | 1967 | 949 | 652.6 |
| Anaheim | 1966 | 948 | 652.6 |
| Santa Clarita | 1762 | 540 | 612.4 |
| Santa Ana | 1763 | 1355 | 642.5 |
| Thousand Oaks | 1762 | 948 | 753.0 |
| Lancaster | 1458 | 236 | 552.2 |
| Riverside | 1965 | 643 | 582.3 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Santa Ana; cooler: Santa Clarita, Lancaster and Riverside.
Other months in Los Angeles
- January19 °C67 °F / 9 °C48 °F
- February19 °C67 °F / 9 °C48 °F
- March21 °C70 °F / 10 °C50 °F
- April23 °C73 °F / 11 °C52 °F
- May25 °C78 °F / 14 °C57 °F
- June29 °C83 °F / 16 °C61 °F
- July31 °C89 °F / 19 °C67 °F
- August32 °C90 °F / 20 °C67 °F
- September31 °C88 °F / 19 °C66 °F
- October27 °C81 °F / 16 °C60 °F
- November23 °C73 °F / 12 °C54 °F
- December19 °C66 °F / 9 °C48 °F
Frequently asked questions
How warm is Los Angeles in December?
In December the average high in Los Angeles is 19 °C (66 °F) and the average low is 9 °C (48 °F).
Does it rain a lot in Los Angeles in December?
On average about 65 mm (2.6 in) of precipitation falls in December; it ranks 3rd of the 12 months.
Is December the warmest month in Los Angeles?
No. The warmest month in Los Angeles is August, with an average high of 32 °C (90 °F). The coldest month is December, with an average low of 9 °C (48 °F).
How long is the day in Los Angeles in December?
In the middle of December the day in Los Angeles lasts about 9.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Los Angeles in December?
The average relative humidity in December is about 58%. This is a long-term average for the whole day.
How cloudy is Los Angeles in December?
On average about 42% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 395 m, while Los Angeles lies at about 89 m. Temperatures on this page were therefore adjusted by +2 °C3.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.