20-40m
    California, United States
    Santa Barbara Island Federal Marine Reserve

    Osborn Bank

    Best months: Jul–Oct

    Protected Area

    Santa Barbara Island Federal Marine Reserve

    Why dive here

    Osborn 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 20-40m
    StandoutDramatic pinnacle topography

    Osborn Bank, off the California coast, is a series of deep pinnacles rising from the seabed. We’ve found it’s a spot best suited for experienced divers comfortable with colder water and potential currents. You'll likely encounter rockfish, lingcod, and sometimes larger pelagics moving through. It’s a good choice for those looking for a more adventurous, less-frequented dive.

    Typical Osborn Bank Dive Profile

    10m20mSafety Stop0m20m 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 20m - Advanced Open Water certification recommended.

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

    Today05:5817:3011h 33m daylightGolden hour 16:57

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    Conditions

    Ocean conditions, forecast and tides for Osborn Bank

    Osborn Bank Ocean Conditions

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

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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