Hurricane Marie Gains Strength, Bringing Stormy Labor Day Weekend Threats to Southern California

Overnight, the system that was once a tropical storm upgraded to a Category 1 hurricane, now churning just off the Mexican coast. While the storm’s core is expected to stay well southwest of Southern California, the humidity it carries may still spill into the region this weekend.

National Weather Service models show a roughly 50‑60 % chance of light rain—think a few‑tenth of an inch—between Sunday and Tuesday. There’s also a smaller, 10‑15 % chance of heavier rain and isolated thunderstorms, especially as the moisture draws northward.

What’s a bigger worry for beach‑goers is the swell. A south‑to‑southeast swell generated by Marie is set to arrive on the coast, amplifying the already‑elevated surf from the now‑dissipated Hurricane Karina. The biggest waves are expected from Oceanside northward, with the strongest, most hazardous rip currents likely on south‑facing beaches Sunday through Monday night.

High tides will add to the problem. Forecasts call for tides of about 6.5‑6.8 feet Sunday and around 7 feet Monday, raising the odds of coastal flooding and beach erosion, especially if the peak swell coincides with the high tide.

Temperatures will stay a touch cooler than normal—roughly 2‑6 °F below average—in Los Angeles and Orange counties, thanks to a lingering marine layer. By the holiday weekend, nighttime lows should warm a bit, while inland spots could feel a hair cooler if clouds and moisture linger.

The forecast confidence drops after Saturday. Small shifts in Marie’s track could dramatically change the amount of rain, wind, or surf we see. As the NWS cautions, “A minor change in the track of Marie could result in significant changes to the current forecast.”

For now, the storm isn’t expected to make a direct hit, but residents should stay tuned to official updates from the National Hurricane Center, NWS San Diego, NWS Los Angeles and NWS Bay Area, especially if you plan to hit the beach or head out on Labor Day.