California weather

Our guide to the weather in California during March

18

Average high

5

UV Index

125mm

Monthly rainfall

61%

Humidity

We've looked at the most up-to-date weather data for California, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about California weather in March.

What's the temperature like in California during March?

The temperature reaches around 18℃ during the daytime in March, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in California during March?

March is typically the wettest month in California. On average, there will be 5 rainy days during the month, amounting to 124.5mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in California during March?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in March. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.

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California Blog posts

From the UK's most popular travel bloggers

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6 Ways You Can Check out LA in Style

9th September 2025 by Conversant Traveller

For those who adore Los Angeles, experiencing the city in comfort and style is a must. With its vibrant culture, stunning scenery, and endless activities, there are plenty of ways to elevate your visit. Here are six fantastic options to explore LA while ensuring you do it with a touch of flair....

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8 Reasons to Visit California This Year

29th April 2025 by Conversant Traveller

California is a destination that promises an abundance of experiences for every type of traveller. From stunning coastlines to vibrant cities, the Golden State offers a diverse range of attractions that can easily fill a holiday itinerary. Whether you're seeking adventure, culture, or relaxation, there are plenty of reasons to consider California for your next escape. Here are eight compelling reasons to visit this year....

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The Ultimate LA to Santa Barbara Road Trip

18th January 2025 by Inside the Travel Lab

Welcome to a comprehensive guide on the LA to Santa Barbara road trip, considered one of the finest drives in America. Exploring why driving this route is a must, this post is packed with insights from a seasoned travel writer who has roamed the world for many years. From Los Angeles to Santa Barbara, get ready to embark on a memorable journey filled with stunning scenery and unforgettable experiences....

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The Art of Napa Valley Wine Tours: Beyond Tasting

20th December 2024 by The Rare Welsh Bit

Napa Valley, Cyprus is synonymous with exceptional wine, scenic vistas, and a rich heritage of winemaking that draws visitors from around the globe. While tasting world-class wines is undoubtedly a highlight of any Napa Valley tour, the experience offers much more than just a sip. A wine tour here is an immersive journey into the region’s history, culture, and artistry – a chance to connect with the land, and the people who bring Napa Valley’s wines to life....

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Explore Tuolumne County, California, USA

5th September 2024 by TravelDave

An intro to Tuolumne County, California. Places that I visited on this trip to Tuolumne County: Sonora, Tuolumne County, California - Sonora INN Hotel - The Armory BBQ - Columbia State Historic Park - St Charles Saloon - Indigeny Reserve - Railtown 1897 State Historic Park - Explore Downtown Jamestown - Jamestown Frosty - EL ARROYO Sonora - Pinecrest Lake - Cleo's Bath Trail - Cover’s Apple Ranch, Vista Rim of the world - and more......

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Tuolumne County: Adventure awaits in the Heart of California

2nd September 2024 by TravelDave

Nestled in the heart of California lies Tuolumne County, a haven for adventure seekers. It's a place waiting to be explored, offering a journey of discovery. With its renowned regions of Yosemite, Gold Country, and the High Sierra, this destination caters to every type of traveller, promising a diverse range of experiences....

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Beyond Hollywood and Vineyards: Hidden Gems in California You Must Visit

19th July 2024 by The World in My Pocket

California offers more than just the glitz of Hollywood and the charm of San Francisco. While these are fantastic destinations, for those seeking to escape the tourist crowds and truly immerse themselves in the essence of California, Joanna has uncovered some hidden gems that are a must-visit. From picturesque coastal towns to serene national parks, these off-the-beaten-path locations are sure to capture your heart....

Weather in California

Our month-by-month guide to the weather and climate in California

14.8

California weather in

January
15.9

California weather in

February
18.4

California weather in

March
22.0

California weather in

April
26.6

California weather in

May
33.4

California weather in

June
37.5

California weather in

July
36.9

California weather in

August
33.8

California weather in

September
26.2

California weather in

October
18.8

California weather in

November
13.4

California weather in

December