5-20m
    Pacific Northwest, United States

    Jimmy Judd Reef

    Best months: Sep–Jan

    Why dive here

    With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Jimmy Judd Reef offers some of Pacific Northwest's richest reef diving. Water ranges 7-17°C, warmest July, August, September.

    Best timeSep–Jan
    WetsuitA drysuit
    Marine lifeHumpback Whales, Orcas and Seals & Sea Lions · 35+ species recorded
    Water7-17°C · warmest July, August, September
    CharacterReef dive · max 5-20m

    Jimmy Judd Reef, out here in the Pacific Northwest, is a solid dive, especially if you’re into the colder water ecosystems. We’ve found it’s usually a reliable spot for spotting some of the region’s iconic residents. Think big sunflower stars clinging to the rocks and the occasional spotted ratfish ghosting past. If you time it right, particularly during late summer or early fall, you might even catch the tail end of a salmon run – pink and coho salmon pushing through, a real spectacle. It’s a good one for those who appreciate the unique beauty of temperate reefs, no crazy currents, just good solid diving.

    Typical Jimmy Judd Reef Dive Profile

    5mSafety Stop0m5m max~60 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

    Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.

    Today06:3617:4111h 5m daylightGolden hour 16:57

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    Conditions

    Ocean conditions, forecast and tides for Jimmy Judd Reef

    Jimmy Judd Reef Ocean Conditions

    Monthly averages for Jimmy Judd Reef, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 9449880 - Friday Harbor, WA (27km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    11°C

    53°F · Range: 9.6–11.4°C

    Air Temperature

    11°C

    51°F

    Current Speed

    3.16 cm/s

    Direction: E (108.4°)

    Salinity

    23.61 PSU

    Wind Speed

    1.8 m/s

    3.5 knots

    Atmospheric Pressure

    1018.3 hPa

    Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)

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