California swim report

Warmest water

The 5 warmest of 106 sensors reporting a water temperature in California today. Station names open the official monitoring page.

1. #1
   HOT C A FLUME NR MAMMOTH LAKES CAUSGS gauge · 40 ft³/s
   94°F 34°C9 hrs ago
2. #2
   COLORADO RIVER ABOVE IMPERIAL DAM, AZ-CAUSGS gauge
   87°F 30°C9 hrs ago
3. #3
   DEEP C NR HESPERIA CAUSGS gauge · 0 ft³/s
   79°F 26°C9 hrs ago
4. #4
   SAN JOAQUIN R NR VERNALIS CAUSGS gauge · 566 ft³/s
   77°F 25°C9 hrs ago
5. #5
   SAN JOAQUIN R NR CROWS LANDING CAUSGS gauge · 278 ft³/s
   77°F 25°C9 hrs ago

Active hazards in California

Alerts cover counties or forecast zones — an alert for an area does not mean every river or beach inside it is affected. Times are local to the issuing office.

• CautionExtreme Heat Warning

  An Extreme Heat Warning is in effect for Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning.

  NWS San Diego CA · until Aug 28, 8:00 PM

• CautionExtreme Heat Warning

  An Extreme Heat Warning is in effect for Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley.

  NWS Phoenix AZ · until Aug 28, 8:00 PM

• CautionExtreme Heat Warning

  An Extreme Heat Warning is in effect for Hualapai Mountains; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; Northeast Clark County; Western Clark and Southern Nye County; Southern Clark County.

  NWS Las Vegas NV · until Aug 21, 8:00 PM

• CautionExtreme Heat Warning

  An Extreme Heat Warning is in effect for Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; San Bernardino County-Upper Colorado River Valley; Las Vegas Valley; Lake Mead - NV side; Lake Mohave - NV side.

  NWS Las Vegas NV · until Aug 23, 8:00 PM

Where to swim in California

The most-reviewed, well-rated water destinations in California — check each one’s live conditions before you go.

4.6(131,806)

PIER 39

Tourist attraction · San Francisco, California

Bustling bayside pier featuring scenic views, sea lion sightings, eateries, shops & entertainment.

Can I swim today? →

4.6(126,928)

Santa Monica Pier

Fishing pier · Santa Monica, California

Storied seaside destination showcasing a range of shops & cafes, plus an amusement park & aquarium.

Can I swim today? →

4.6(26,119)

Redondo Beach Pier

Tourist attraction · Redondo Beach, California

⛺Camping nearby

Landmark pier known for scenic oceanfront dining, shopping & nightlife, plus music & festivals.

Can I swim today? →

4.7(17,531)

Newport Beach Pier

Fishing pier · Newport Beach, California

Scenic pier popular for fishing & ocean views, convenient to beach & nearby shops & restaurants.

Can I swim today? →

4.5(16,442)

Dockweiler Beach

State park · Playa Del Rey, California

⛺Camping nearby🐾Dog-friendly

Bustling public beach offering a hang gliding training park, bonfires & views of departing aircraft.

Can I swim today? →

4.7(13,981)

Huntington Beach

Beach · Huntington Beach, California

⛺Camping nearby

This 3.5-mile stretch of beach & pier draws crowds & hosts pro surfing & volleyball competitions.

Can I swim today? →