CaliforniaReservoirLos Angeles County
Photo: Albaum at English Wikipedia · Public domain · Wikimedia Commons
CountiesLos Angeles County
Coordinates34.5261, -118.5990
Surface area2,235 acres
Max depth330 ft
RiverCastaic Creek
Managed byCounty of Los Angeles Department of Parks and Recreation

Swimming beaches on Castaic Lake

No named swimming beach is mapped yet for this lake. Access is through agency day-use areas and boat ramps listed below. We add beach pages only when we can confirm a name, coordinates and an operating agency.

Castaic Lake on the map

Lake center, swimming spots and access points.

Get directions

Weather and water temperature

Air temperature and wind from Open-Meteo. Water temperature only when the lake has a public sensor.

Weather data by Open-Meteo

Water level today

The level comes from CDEC - California Data Exchange Center (DWR). A low pool exposes stumps and mud in the shallow arms of the lake.

1,505.80 ft -1.69 ft in 7 days

Reading of Sep 9, 2026 · source: CDEC - California Data Exchange Center (DWR)

 Full water level record for Castaic Lake

Castaic Lake: beaches, ramps and water level

On the map, Castaic Lake is centered near 34.5261, -118.5990. It lies at roughly 1,519 feet of elevation. It reaches roughly 330 feet at its deepest. Releases go downstream into the Castaic Creek.

Rincon Beach, on Lake Casitas, is the closest named beach in this guide, about 48 miles off. Absence from these datasets does not mean the water is closed, only that no agency lists a beach. The federal and state datasets behind this guide list no named beach at Castaic Lake. That does not mean there is no access, only that none is catalogued.

Swimming season in California runs through the warm months, and day-use areas set their own opening dates. Water quality is monitored unevenly on inland lakes, so posted notices are the most reliable guide. No public sensor reports water temperature at Castaic Lake, so the panel shows air temperature and wind.

The level comes from CDEC - California Data Exchange Center (DWR). A low pool exposes stumps and mud in the shallow arms of the lake.

The closest lakes in this guide are Lake Piru (California, 9 mi), Lake Casitas (California, 43 mi) and Silverwood Lake (California, 75 mi). In all, 86 lakes in California are covered here.

Questions about Castaic Lake

Is there a beach at Castaic Lake?

No named swimming beach appears in the federal and state datasets this guide reads. Check the operating agency for day-use areas on the ground.

How big is Castaic Lake?

About 2,235 acres. Maximum depth is around 330 feet.

What other lakes are near Castaic Lake?

The closest in this guide is Lake Piru, about 9 miles away in California.

Lakes near Castaic Lake

Other lakes in this guide, ordered by distance.

Lake Casitas

California · Ventura County

Lake Casitas

Lake Casitas covers about 1,100 acres of the Coyote Creek in California. Its shoreline falls inside Ventura County. It is managed…

Reservoir2 beaches
Silverwood Lake

California · San Bernardino County

Silverwood Lake

Fed by the West Fork Mojave River, Silverwood Lake holds roughly 976 acres of water in California. It lies in San Bernardino…

Reservoir
Lake Cachuma

California · Santa Barbara County

Lake Cachuma

Lake Cachuma covers about 3,100 acres of the Santa Ynez River in California. It lies in Santa Barbara County. Management is in…

Reservoir3 beaches
Lake Isabella

California · Kern County

Lake Isabella

Lake Isabella is a 1,111,974-acre reservoir on the Kern River in California. Its shoreline falls inside Kern County. Management…

Reservoir1 beach
Lake Perris

California · Riverside County

Lake Perris

Lake Perris is a 2,200-acre reservoir on the outflow = in California. The lake is in Riverside County. It is managed by…

Reservoir3 beaches
Big Bear Lake

California · San Bernardino County

Big Bear Lake

Big Bear Lake is a reservoir of some 2,971 acres on the outflow =, in California. It lies in San Bernardino County. BBMWD manages…

Reservoir1 beach

Explore around California

 All lakes in California  Swimming spots in California

Sources

Every figure on this page comes from one of these public sources.