HW-MN0805551 – Residency
9th sighting in South Africa
HW-MN0805551 @148145
Nov 13, 2025 – Jan 6, 2026 · South Africa
South Africa · Nov 2025 – Jan 2026
73 m
Deepest dive
3:04
Longest dive
77
Dives
- Sightings
- 9
- Days between first and last sighting
- 54
- Deepest dive on record
- 73 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Nov 13, 2025 | 58 m | — | 41 m |
| Dec 4, 2025 | 90 m | — | 65 m |
| Dec 4, 2025 | 78 m | — | 67 m |
| Dec 27, 2025 | 105 m | — | 73 m |
| Dec 29, 2025 | 45 m | — | 25 m |
| Dec 30, 2025 | 62 m | — | 53 m |
| Dec 31, 2025 | 45 m | — | 39 m |
| Jan 5, 2026 | 83 m | 15.0°C | 17 m |
| Jan 6, 2026 | 60 m | 14.8°C | 23 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
73 m
Deepest dive
3:04
Longest dive
77
Dives
21 m
Avg dive depth
9
Sightings
54
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 (105 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 27, 2025
measured- Seafloor depth
- 105 m
- Sea-surface temperature
- —
- Distance from shore
- 9.0 km
Across the residency · 9 sightings
measured- Seafloor depth
- 45 m – 105 m
- Sea-surface temperature
- 14.8°C – 15.0°C
- Distance from shore
- 2.0 km – 9.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 9 catalogued encounters on Happywhale.