Check the Beach
Miller-Knox LagoonKellers Beach, Contra Costa County

Contra Costa County beaches

Which Contra Costa County beach is best right now? 3 beaches ranked by live weather, wind, waves and water temperature.

Updated 12:22 am local timeScores from Open-Meteo forecasts, refreshed hourlyColors follow the lifeguard flags

Top 3 right now

It is dark there now, so these are ranked by their best stretch next.

  1. The beach at Lake Anza on a sunny day.17.9Greatlater

    Lake Anza Beach

    Contra Costa County

    Dark there now. Best 2 pm later
    Air
    13°C55°F
    Water
    19°C65°F
    Wind
    6 km/h3 mph
    Waves
    0.5 m2 ft
    Tomorrow, hour by hourBest 1 pm, 8.6
  2. Miller-Knox Lagoon27.5Greatlater

    Kellers Beach

    Contra Costa County

    Dark there now. Best 8 am later
    Air
    14°C58°F
    Water
    18°C64°F
    Wind
    12 km/h7 mph
    Waves
    0.5 m2 ft
    Tomorrow, hour by hourBest 6 pm, 7.7
  3. 37.4Greatlater

    Point Molate Beach

    Contra Costa County

    Dark there now. Best 8 am later
    Air
    14°C57°F
    Water
    17°C62°F
    Wind
    10 km/h6 mph
    Waves
    0.5 m2 ft
    Tomorrow, hour by hourBest 8 am, 7.3

Contra Costa County today

It is dark across Contra Costa County right now: 3 of 3 scored beaches look good later, water is 17 to 19°C62 to 65°F. Read at 12:22 am; everything below is computed from that reading.

  • Warmest water

    19°C65°F

    Lake Anza Beach

    Contra Costa County. 1.0°1.8° above the Contra Costa County average. Score 7.9 Great.

  • Calmest sea

    0.5 m2 ft waves

    Lake Anza Beach

    Contra Costa County. Wind 6 km/h3 mph.

  • Best for families

    7.9 Great

    Lake Anza Beach

    Contra Costa County. Top score of the 1 scored beach tagged with lifeguards.

Best hours

The best hour left today is 4 pm (7.9); the weakest is 11 am (6.7).

The strongest stretch runs 12 pm to 7 pm.

7 to 10, green flag4 to 7, yellowUnder 4, redAverage of the scored beaches, each hour

All Contra Costa County beaches

Every Contra Costa County beach we track, ranked by its live Beach Score. Hover a row to find it on the map.

3 beaches listed · 3 of 3 scored live

  1. The beach at Lake Anza on a sunny day.

    Lake Anza Beach

    Contra Costa County

    7.9Greatlater

    Small waves, light wind and 19°C65°F water.

    • Water19°C65°F
    • Air13°C55°F
    • Wind6 km/h3 mph
    • Waves0.5 m2 ft
    TodayTomorrowBest 2 pm to 7 pm later
    • Lifeguards
    • Free parking
  2. Miller-Knox Lagoon

    Kellers Beach

    Contra Costa County

    7.5Greatlater

    Small waves, light wind and 18°C64°F water.

    • Water18°C64°F
    • Air14°C58°F
    • Wind12 km/h7 mph
    • Waves0.5 m2 ft
    TodayTomorrowBest 8 am to 7 pm later
    • No facility details on OpenStreetMap yet
  3. Point Molate Beach

    Contra Costa County

    7.4Greatlater

    Small waves, light wind and 17°C62°F water.

    • Water17°C62°F
    • Air14°C57°F
    • Wind10 km/h6 mph
    • Waves0.5 m2 ft
    TodayTomorrowBest 8 am to 7 pm later
    • No facility details on OpenStreetMap yet
Map of Contra Costa County beaches with live score pins

Coastlines: Natural Earth, public domain. Pins are live scores.

7 and up4 to 7Under 4No live score hereHover a beach to find it. Click a group to zoom in.

Stays near Contra Costa County’s best beaches today

Compare hotels and apartments near the beaches that score best today.

Partner links
  • 7.9 GreatLake Anza Beach now

    Stays near Lake Anza Beach

    Compare prices for tonight on our stays partner’s map.

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  • 7.5 GreatKellers Beach now

    Stays near Kellers Beach

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  • 7.4 GreatPoint Molate Beach now

    Stays near Point Molate Beach

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Hotel results come from our stays partner. We may earn a commission when you book, at no extra cost to you, and it never changes the beach score.

Contra Costa County beach questions

Answered from today’s data. Numbers change as the forecast does.

What is the best beach in Contra Costa County right now?

Lake Anza Beach has the top Beach Score later: 7.9 Great, with 6 km/h (3 mph) of wind. Scores are ranked from live forecasts, so the order changes through the day.

What is the water temperature in Contra Costa County today?

Sea water is 17 to 19°C (62 to 65°F) across the 3 scored beaches. The warmest is Lake Anza Beach, at 19°C (65°F).

Where is the sea calmest in Contra Costa County right now?

Lake Anza Beach has the smallest waves, at 0.5 m (2 ft) with 6 km/h (3 mph) of wind.

Which Contra Costa County beaches have lifeguards?

1 of 3 listed beaches are tagged with lifeguards on OpenStreetMap, including Lake Anza Beach. Tags can be out of date, so follow the posted flags and staff on the day.

What is the best time to go to the beach in Contra Costa County today?

Averaged across the scored beaches, the best hour today is 4 pm, at 7.9 Great, and the strongest stretch runs 12 pm to 7 pm. Each beach page has its own hour-by-hour forecast.

Are there live beach cams in Contra Costa County?

No live cams are listed for Contra Costa County yet. If you run one, you can list it free.

How many beaches does Check the Beach cover in Contra Costa County?

All 3 beaches in our data for Contra Costa County are scored live on this page.

Sources: Open-Meteo weather and marine forecasts; facilities from OpenStreetMap. All sources.

More areas in California

Same live scores, same flags.

Run a cam on a Contra Costa County beach? List it free.

Surf shops, hotels and lifeguard clubs: put your cam next to a live Beach Score and send beachgoers your way.

  • Free listing, with a credit and a link to your site on the beach page
  • Works with YouTube streams and most IP cams
  • Cams load on click, so nothing autoplays
List your beach camTakes about 5 minutes.