Santa Monica weather by month

Santa Monica, California, is renowned for its idyllic beaches, vibrant pier, and generally pleasant climate. But “pleasant” covers a lot of ground! Knowing what to actually expect, month by month, is crucial for planning your perfect trip or even just enjoying local activities. This guide breaks down the Santa Monica weather throughout the year, offering insights into temperatures, rainfall, and what you’ll need to pack.

Understanding Santa Monica’s Climate

Santa Monica enjoys a Mediterranean climate, characterized by warm, dry summers and mild, wetter winters. It benefits significantly from a marine layer, a cool, moist air mass that often rolls in from the Pacific Ocean, particularly during the summer months. This layer keeps temperatures surprisingly moderate, even when inland areas are experiencing extreme heat. While sunshine is plentiful, don’t be surprised by coastal fog!

Santa Monica Weather by Month: A Detailed Breakdown

Here’s a comprehensive look at what the weather in Santa Monica holds each month:

Month	Avg High (°F)	Avg Low (°F)	Rainfall (inches)	Humidity (%)	Sunshine Hours	Notes
January	65	49	2.7	70	150	Coolest month, possibility of rain.
February	66	50	2.5	68	175	Similar to January, whale watching season begins.
March	68	52	2.2	67	210	Transitioning; more sunny days.
April	71	55	0.8	65	240	Beautiful spring weather, wildflowers.
May	73	58	0.4	64	280	Warm and sunny, ideal for beach days.
June	75	61	0.2	64	300	"June Gloom" – morning marine layer.
July	77	63	0.1	63	310	Warmest and sunniest month.
August	77	64	0.1	64	300	Similar to July, peak tourist season.
September	78	65	0.3	66	260	"Indian Summer" – often warmest.
October	75	62	1.2	68	220	Pleasant, fewer crowds.
November	70	55	1.8	70	170	Increasing rainfall, cool evenings.
December	66	50	2.1	71	150	Festive atmosphere, mild temperatures.

Note: Averages are based on historical data and can vary.

Spring: Blooming Beauty (March – May)

Spring in Santa Monica is a delight. Temperatures steadily rise, wildflowers bloom in the hills, and the occasional gentle rain shower keeps everything fresh.

March: Expect highs around 68°F. Still a bit cool for swimming, but excellent for hiking and exploring.

April: The weather warms up to an average of 71°F, making this a prime time for outdoor activities like biking along the beach path.

May: Beach weather begins in earnest! Highs reach around 73°F, and you can expect plenty of sunshine. Pack layers as evenings can be cool.

Summer: Sun-Kissed Days (June – August)

Santa Monica summers are famous for their sunshine and pleasant temperatures. However, the "marine layer" – often called "June Gloom" – is a common occurrence. This typically means overcast mornings that burn off by the afternoon.

June: Highs around 75°F. Prepare for morning clouds, but plenty of sun later in the day.

July & August: The warmest months, averaging 77°F. These are ideal for swimming, sunbathing, and enjoying all the beach has to offer.

Autumn: Golden Hues and Gentle Breezes (September – November)

Autumn is arguably the best time to visit Santa Monica, with warm days, cooler nights, and fewer crowds. "Indian Summer" in September often brings the warmest weather of the year.

September: The average high is 78°F, often with clear skies. Perfect for long beach walks and outdoor dining.

October: Temperatures cool down slightly to 75°F, but remain very pleasant. Enjoy festivals and events with comfortable weather.

November: The chance of rain increases, and average highs are around 70°F. A good time for indoor activities and exploring the city.

Winter: Mild and Relaxed (December – February)

Santa Monica winters are incredibly mild compared to other parts of the country. While it can rain, extended periods of gloomy weather are rare.

December: Average highs around 66°F. Enjoy festive holiday events and the mild coastal air.

January & February: Coolest months, with highs around 65-66°F. Whale watching season begins, and the city offers a more relaxed atmosphere.

Frequently Asked Questions (FAQ)

Q: Is Santa Monica always foggy?
A: No, the fog is most common in the mornings during the summer months (June Gloom). It usually burns off by the afternoon.

Q: What is the best month to visit Santa Monica for warm weather?
A: September usually offers the warmest and clearest weather.

Q: Does it ever get really hot in Santa Monica?
A: Rarely. The marine layer keeps temperatures moderate. Heat waves can occur, but they are infrequent.

Q: What should I pack for a trip to Santa Monica?
A: Layers! Even in summer, evenings can be cool. Bring sunscreen, a hat, sunglasses, comfortable walking shoes, and a light jacket.

Q: Is Santa Monica a good place to visit in the winter?
A: Absolutely! The weather is mild, and it’s less crowded than the peak summer season.