California weather in May
May splits California wide open: Death Valley runs 101° afternoons while South Lake Tahoe tops out near 62°.
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 69–76°, nights 51–60°, and 0.3–0.4 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Los Angeles | 74° / 58° | 1 | May Gray: silver mornings at the beach, sun a few miles inland. |
| Anaheim | 76° / 58° | 1 | Soft mornings, bright afternoons, gray only if you drive west. |
| San Diego | 70° / 60° | 1 | Overcast until lunch, then a perfect afternoon — most days. |
| Santa Barbara | 69° / 51° | 1 | Mornings under a lid, afternoons that make up for it. |
Central Coast
Highs 65–69°, nights 48–50°, and 0.5–0.9 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Monterey | 65° / 50° | 1 | Bright and breezy, and the aquarium line starts early. |
| Santa Cruz | 69° / 48° | 1 | Everything blooming, and the fog learning its summer routine. |
Bay Area & Wine Country
Highs 64–73°, nights 48–51°, and 0.7–0.8 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| San Francisco | 64° / 51° | 2 | Sunny inland, gray at Ocean Beach, both on the same day. |
| Napa | 73° / 48° | 2 | The last green month before the gold takes over. |
The Deserts
Highs 95–101°, nights 66–75°, and under 0.1 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Palm Springs | 95° / 66° | 0 | The heat means it now — do everything before breakfast. |
| Death Valley | 101° / 75° | 0 | Serious heat now. Sightsee from the car and the overlooks. |
The Sierra
Highs 62–71°, nights 33–45°, and 1.3–1.9 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Yosemite Valley | 71° / 45° | 4 | Peak waterfall season — expect to get wet on the Mist Trail. |
| South Lake Tahoe | 62° / 33° | 4 | Warm afternoons, freezing dawns, and half the trails still snowed in. |
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.