HW-MN0805975 – Residency
5th sighting in South Africa
HW-MN0805975 @150955
Dec 30, 2025 – Feb 10, 2026 · South Africa
South Africa · Dec 2025 – Feb 2026
78 m
Deepest dive
2:41
Longest dive
38
Dives
- Sightings
- 5
- Days between first and last sighting
- 42
- Deepest dive on record
- 78 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) |
|---|---|---|---|
| Dec 30, 2025 | 46 m | — | 38 m |
| Jan 17, 2026 | 85 m | 14.1°C | 78 m |
| Jan 26, 2026 | 48 m | 14.2°C | 41 m |
| Jan 27, 2026 | 99 m | 16.4°C | 57 m |
| Feb 10, 2026 | 79 m | 16.2°C | 67 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
78 m
Deepest dive
2:41
Longest dive
38
Dives
23 m
Avg dive depth
5
Sightings
42
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 (85 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 17, 2026
measured- Seafloor depth
- 85 m
- Sea-surface temperature
- 14.1°C
- Distance from shore
- 7.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 46 m – 99 m
- Sea-surface temperature
- 14.1°C – 16.4°C
- Distance from shore
- 3.0 km – 11.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.