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Monterey Bay

Pinwheel – Residency

104th sighting in Monterey Bay
Fluke of Pinwheel
Pinwheel Confirmed in the catalog @82266
May 6 – Oct 20, 2026 · Monterey Bay

Bay's Best Season Yet

Krill piled thick, faces everywhere, fluke up all summer long.

178 m
Deepest dive
6:11
Longest dive
239
Dives
Sightings
16
Days between first and last sighting
167

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 6, 2026208 m14.0°C78 m
Jun 13, 2026254 m15.0°C178 m
Jun 26, 202643 m16.7°C39 m
Jul 5, 2026244 m16.2°C75 m
Sep 17, 2026113 m15.6°C39 m
Sep 23, 2026123 m17.0°C80 m
Sep 24, 2026221 m16.8°C57 m
Sep 25, 2026254 m16.7°C64 m
Sep 27, 2026215 m16.6°C132 m
Sep 28, 2026196 m16.6°C41 m
Sep 29, 2026145 m16.7°C126 m
Sep 30, 2026144 m16.6°C100 m
Oct 3, 2026155 m18.0°C63 m
Oct 4, 202651 m18.0°C36 m
Oct 16, 2026567 m18.8°C35 m
Oct 20, 2026209 m19.2°C127 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
May 6, 2026 — seafloor 208 m (measured), deepest dive 78 m (modelled)May 6Jun 13, 2026 — seafloor 254 m (measured), deepest dive 178 m (modelled)Jun 26, 2026 — seafloor 43 m (measured), deepest dive 39 m (modelled)Jul 5, 2026 — seafloor 244 m (measured), deepest dive 75 m (modelled)Jul 5Sep 17, 2026 — seafloor 113 m (measured), deepest dive 39 m (modelled)Sep 23, 2026 — seafloor 123 m (measured), deepest dive 80 m (modelled)Sep 24, 2026 — seafloor 221 m (measured), deepest dive 57 m (modelled)Sep 24Sep 25, 2026 — seafloor 254 m (measured), deepest dive 64 m (modelled)Sep 27, 2026 — seafloor 215 m (measured), deepest dive 132 m (modelled)Sep 28, 2026 — seafloor 196 m (measured), deepest dive 41 m (modelled)Sep 28Sep 29, 2026 — seafloor 145 m (measured), deepest dive 126 m (modelled)Sep 30, 2026 — seafloor 144 m (measured), deepest dive 100 m (modelled)Oct 3, 2026 — seafloor 155 m (measured), deepest dive 63 m (modelled)Oct 3Oct 4, 2026 — seafloor 51 m (measured), deepest dive 36 m (modelled)Oct 16, 2026 — seafloor 567 m (measured), deepest dive 35 m (modelled)Oct 20, 2026 — seafloor 209 m (measured), deepest dive 127 m (modelled)Oct 20

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

178 m
Deepest dive
6:11
Longest dive
239
Dives
29 m
Avg dive depth
16
Sightings
167
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200178 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (254 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Jun 13, 2026

measured
Seafloor depth
254 m
Sea-surface temperature
15.0°C
Distance from shore
4.0 km

Across the residency · 16 sightings

measured
Seafloor depth
43 m – 567 m
Sea-surface temperature
14.0°C – 19.2°C
Distance from shore
2.0 km – 16.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 16 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.