HW-MN0805983 – Residency
4th sighting in South Africa
HW-MN0805983 @150963
Dec 30, 2025 – Jan 17, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
66 m
Deepest dive
2:06
Longest dive
23
Dives
- Sightings
- 4
- Days between first and last sighting
- 17
- Deepest dive on record
- 66 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 | — | 30 m |
| Jan 5, 2026 | 65 m | 14.8°C | 38 m |
| Jan 11, 2026 | 71 m | 15.2°C | 43 m |
| Jan 17, 2026 | 85 m | 14.1°C | 66 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
66 m
Deepest dive
2:06
Longest dive
23
Dives
19 m
Avg dive depth
4
Sightings
17
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 · 4 sightings
measured- Seafloor depth
- 46 m – 85 m
- Sea-surface temperature
- 14.1°C – 15.2°C
- Distance from shore
- 3.0 km – 7.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.