Santa Monica weather averages present a temperate coastal climate that draws residents and visitors alike to this Pacific shoreline. The city benefits from consistent oceanic influence, keeping seasonal temperature swings moderate compared to inland valleys. Understanding these averages helps plan daily activities, wardrobe choices, and long-term visits with confidence.
Annual Temperature Patterns
Year round conditions in Santa Monica stay mild, with winter lows rarely dipping into freezing and summer highs seldom becoming oppressively hot. Daytime highs typically range from the mid 60s to mid 70s Fahrenheit, while overnight lows often fall into the upper 40s to mid 50s. This narrow band of comfort defines the local weather averages across most months of the year.
Seasonal Breakdown
Spring brings gradually warming days, with averages climbing from the 60s in March to the low 70s by May.
Summer months stay comfortably warm, yet the marine layer frequently introduces cooler air and morning fog.
Autumn maintains pleasant temperatures, often extending the mild feel of summer into October and November.
Winter remains mild, with daytime averages in the 60s and occasional rain events that refresh the landscape.
Precipitation and Humidity Trends
Santa Monica receives the majority of its annual rainfall during the cooler months, with November through March serving as the primary wet season. Average precipitation totals remain modest, supporting Mediterranean influenced vegetation. Higher humidity often accompanies onshore flow, particularly in late spring and summer, while winter storms can briefly elevate moisture levels.
Monthly Rainfall Overview
Month | Avg Rain (inches) | Avg High (°F) | Avg Low (°F)
January | 3.5 | 68 | 48
April | 0.7 | 68 | 52
July | 0.1 | 74 | 59
October | 1.2 | 73 | 56
Sunshine and Cloud Cover
The city enjoys a substantial number of sunny days annually, though morning marine layers can create overcast conditions, especially near the coast. As the day progresses, inland heating often burns off low clouds, revealing clearer skies. These patterns contribute to the overall weather averages by increasing daylight sunshine hours during late spring and summer.
Coastal Influence Details
Onshore winds push cool ocean air inland, moderating peak temperatures.
Evening sea breezes can extend comfortable conditions into the night.
Fog frequently forms overnight and early morning, then clears by mid day.
Annual sunshine hours remain high relative to many nearby metropolitan areas.
Planning Around the Averages
Residents use these long term weather averages to inform home design, choosing materials that resist moisture while allowing airflow. Tourists align sightseeing plans with the drier summer months and milder spring days, maximizing comfort during outdoor activities. Understanding these patterns supports better decision making for both short visits and extended stays.
