25-40m
    California, United States
    Farnsworth Offshore (Catalina Island) State Marine Conservation Area

    Farnsworth Bank

    Best months: Jul–Oct

    Protected Area

    Farnsworth Offshore (Catalina Island) State Marine Conservation Area

    Why dive here

    Farnsworth Bank is a pinnacle dive in California, United States. Water ranges 14-21°C, warmest July, August, September.

    Best timeJul–Oct
    WetsuitA 5mm wetsuit
    Water14-21°C · warmest July, August, September
    CharacterPinnacle dive · max 25-40m
    StandoutDramatic pinnacle topography

    Farnsworth Bank, off Catalina Island, is a deep pinnacle dive known for its purple hydrocoral. Dropping to over 30 metres, the site often has substantial current, making it best suited for experienced divers comfortable with drift diving. Look for large pelagics, like mola mola, passing through the blue. It’s a challenging dive, but the unique coral makes it worthwhile.

    Typical Farnsworth Bank Dive Profile

    10m20mSafety Stop0m25m max~30 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Depth of 25m - Advanced Open Water certification recommended.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today05:5517:2811h 33m daylightGolden hour 16:55

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    Conditions

    Ocean conditions, forecast and tides for Farnsworth Bank

    Farnsworth Bank Ocean Conditions

    Monthly averages for Farnsworth Bank, sourced from NOAA NDBC buoy data - nearest station: Topanga Nearshore, CA (103) (221km away)

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    October Averages

    Sea Temperature

    19°C

    66°F · Range: 14–23.7°C

    Air Temperature

    18°C

    65°F

    Wave Height

    0.6m

    13.8s period

    Based on 4 years of monitoring data · Data sources: NOAA NDBC buoy data

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