California weather in March
March splits California wide open: Death Valley runs 83° afternoons while South Lake Tahoe tops out near 48°.
Based on 12 weather stations. Twelve stations from Death Valley to the Sierra — California holds most of the country’s climates inside one border, and no state needs its regions kept apart more than this one.
Southern California
Highs 66–71°, nights 46–55°, and 1.5–3.1 in of rain in a typical March.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Los Angeles | 70° / 52° | 3 | The last of the rains, with the hills at their best. |
| Anaheim | 71° / 52° | 2 | The rain eases and the orange blossom smell arrives. |
| San Diego | 67° / 55° | 3 | Spring shows up early — bring a layer for the mornings. |
| Santa Barbara | 66° / 46° | 4 | Sun returning, ocean at its most unwelcoming. |
Central Coast
Highs 63–64°, nights 43–46°, and 2.8–4.3 in of rain in a typical March.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Monterey | 63° / 46° | 6 | Wet weeks, and the ocean at its coldest and wildest. |
| Santa Cruz | 64° / 43° | 6 | Rain, wind, and the coldest water on the calendar. |
Bay Area & Wine Country
Highs 62–64°, nights 42–49°, and 3.0–3.1 in of rain in a typical March.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| San Francisco | 62° / 49° | 7 | Still soggy, but the light is back and the wind picks up. |
| Napa | 64° / 42° | 6 | Bud break, green hills, and one more wet stretch. |
The Deserts
Highs 81–83°, nights 54–57°, and 0.3–0.5 in of rain in a typical March.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Palm Springs | 81° / 54° | 1 | Pool weather arrives, and every hotel books out. |
| Death Valley | 83° / 57° | 1 | Warm, busy, and beautiful; take the canyons early. |
The Sierra
Highs 48–57°, nights 24–34°, and 2.9–5.5 in of rain in a typical March.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Yosemite Valley | 57° / 34° | 8 | Storm after storm, feeding the snowpack that runs the falls. |
| South Lake Tahoe | 48° / 24° | 10 | Spring skiing by afternoon, hard frost almost every night. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.