HW-MN0804839 – Residency
8th sighting in South Africa
HW-MN0804839 @133078
Dec 28, 2025 – Jan 27, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
65 m
Deepest dive
2:44
Longest dive
104
Dives
- Sightings
- 7
- Days between first and last sighting
- 30
- Deepest dive on record
- 65 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 28, 2025 | 81 m | — | 54 m |
| Dec 29, 2025 | 57 m | — | 51 m |
| Dec 29, 2025 | 61 m | — | 21 m |
| Dec 30, 2025 | 46 m | — | 27 m |
| Jan 11, 2026 | 71 m | 15.2°C | 65 m |
| Jan 14, 2026 | 37 m | 15.7°C | 33 m |
| Jan 27, 2026 | 99 m | 16.4°C | 62 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
65 m
Deepest dive
2:44
Longest dive
104
Dives
19 m
Avg dive depth
7
Sightings
30
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 (71 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 11, 2026
measured- Seafloor depth
- 71 m
- Sea-surface temperature
- 15.2°C
- Distance from shore
- 5.0 km
Across the residency · 7 sightings
measured- Seafloor depth
- 37 m – 99 m
- Sea-surface temperature
- 15.2°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 7 catalogued encounters on Happywhale.