December in Los Angeles brings a distinct shift in mood as the tourist crowds thin and locals savor a rare moment of calm before the holiday rush. The city remains mild by most standards, yet subtle changes in daylight and evening temperature redefine how residents and visitors experience each day.
This guide focuses on what to expect in Los Angeles during December, from realistic weather patterns to practical planning details. The information below is designed to support smarter packing, scheduling, and budgeting for the month.
| Aspect | Typical Value | What It Means for You | Notes |
|---|---|---|---|
| Average High Temperature | 68–72°F (20–22°C) | Daytime is pleasant for outdoor activities | Can reach low 70s during Santa Ana events |
| Average Low Temperature | 48–52°F (9–11°C) | Evenings require a light jacket | Inland valleys and mountains drop lower |
| Rainfall | 2–4 inches for the month | Short showers are possible but not daily | Most rain falls in Pacific storms |
| Sunshine & Daylight | 6–7 hours of sun; ~10 hours daylight | Opportunity for late morning to early afternoon plans | Sunrise around 6:45 AM, sunset around 4:45 PM |
| Ocean Water Temperature | 58–61°F (14–16°C) | Cold for swimming without a wetsuit | Surf zones remain popular for experienced surfers |
December Weather Patterns in Los Angeles
How December Weather Typically Feels
December in Los Angeles is characterized by moderate days and cooler evenings, with most of the rain arriving in brief, intense bursts. The air often carries a faint saltiness in the morning that gives way to clear, sunny afternoons in many neighborhoods. Compared with summer, the light changes more quickly, creating long shadows and golden hours that photographers favor.
While Southern California stereotypes suggest endless summer, December introduces subtle seasonality. Residents trade shorts for jeans in the evenings, and the hillsides shift from bright green spring growth to deeper, earthier tones. Humidity remains low, which keeps the cold feel less penetrating than in other climates at similar temperatures.
Santa Ana winds occasionally appear in mid to late December, raising temperatures for a day or two and increasing fire risk when rainfall is scarce. These events can reduce air quality briefly, so sensitive groups may monitor local guidance. Overall, the month balances mild coastal comfort with the first real reminders that winter is underway.
Regional Variations Across the County
Coastal, Inland, and Mountain Differences
Los Angeles County spans a wide range of elevations and exposures, so December conditions can differ sharply within a single day. Coastal areas like Santa Monica and Venice stay milder at night, while neighborhoods several miles inland, such as Burbank or parts of the Valley, experience colder lows. Mountain communities, including parts of the Angeles National Forest, may see frost and occasional snow at higher elevations.
The proximity to the ocean moderates temperature swings along the coast, where daily highs and lows often differ by only 10–12°F. Inland, the same daily high can feel pleasant, but the absence of maritime influence allows radiational cooling to drop temperatures more sharply after sunset. Visitors staying across different regions should plan layers and transport time for these contrasts.
Outdoor Activities and Event Planning
What to Plan for During December
December remains a practical month for outdoor activities in most of Los Angeles, with manageable temperatures and fewer crowds at popular spots. Hiking trails in areas like Runyon Canyon or Griffith Park can be enjoyable during midday when temperatures peak, but early starts help avoid slippery conditions after rain. Beach walks remain feasible, though most people find the water too cold for extended swimming without thermal protection.
Holiday markets and light displays operate across the city, often in historic districts and major parks, creating atmospheric evening outings. Many museums and cultural institutions adjust hours around major holidays, so checking schedules in advance supports smoother visits. Photographers and sightseers appreciate the low-angle sunlight illuminating landmarks, but carrying a light windbreaker is wise for oceanfront and elevated locations.
Practical Packing and Transportation Tips
Clothing and Daily Preparation
Packing for Los Angeles in December benefits from a layered approach. Mornings and evenings call for a medium-weight jacket or windbreaker, while midday may feel comfortable in a long-sleeve shirt. Including a compact umbrella or rain-resistant shell covers the occasional Pacific storm without adding bulk to daily bags.
Transportation remains generally reliable, though holiday events and weather can disrupt schedules. Drivers should allow extra time on mountain passes and during early morning commutes, as frost occasionally affects traction. Those relying on rideshares or public transit should anticipate higher demand on evenings with rain or strong Santa Ana winds, and plan alternative routes when possible.
Key Takeaways for December in Los Angeles
- Expect mild daytime highs around 68–72°F and cooler evenings around 48–52°F.
- Rain is infrequent but can arrive in short, noticeable storms spread across the month.
- Daylight hours are reduced, with sunrise near 6:45 AM and sunset near 4:45 PM.
- Regional differences are significant; coastal areas stay milder while inland valleys chill faster.
- Pack in layers, include rain protection, and check transport or air quality during Santa Ana events.
FAQ
Reader questions
Does it get cold enough in Los Angeles in December to need a coat?
Yes, evenings in December regularly drop into the upper 40s to low 50s°F, making a light to medium jacket necessary for most people, especially near the coast or in shaded areas.
Should I expect rain on most days during December in Los Angeles?
No, rain is common but not constant; many days are dry with brief showers possible, often in the afternoon or evening during active Pacific storm cycles.
Is December a good month to visit popular beaches in Los Angeles?
Beaches remain accessible, but cold ocean temperatures and cooler air make swimming impractical for most visitors; walking and sightseeing are still pleasant during midday warmth.
Are Santa Ana winds something I need to worry about as a tourist in December?
Most tourists are unaffected, but when Santa Ana winds occur they can raise temperatures temporarily, reduce air quality, and increase fire danger; checking local air quality and fire advisories is recommended on windy days.