Monarch – Residency
6th sighting in Salish Sea
Monarch @4931
Aug 21 – Sep 27, 2026 · Salish Sea
Kelp-thick August, all mine
Cool green water, plenty of krill, plenty of familiar backs beside me.
122 m
Deepest dive
5:04
Longest dive
30
Dives
- Sightings
- 5
- Days between first and last sighting
- 37
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Aug 21, 2026 | 166 m | 14.9°C | 122 m |
| Aug 26, 2026 | 194 m | 14.5°C | 38 m |
| Aug 26, 2026 | 188 m | 14.3°C | 43 m |
| Sep 4, 2026 | 195 m | — | 55 m |
| Sep 27, 2026 | 253 m | — | 33 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
122 m
Deepest dive
5:04
Longest dive
30
Dives
28 m
Avg dive depth
5
Sightings
37
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (166 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 21, 2026
measured- Seafloor depth
- 166 m
- Sea-surface temperature
- 14.9°C
- Distance from shore
- 9.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 166 m – 253 m
- Sea-surface temperature
- 14.3°C – 14.9°C
- Distance from shore
- 8.0 km – 9.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.