HW-MN0805840 – Residency
5th sighting in South Africa
HW-MN0805840 @150513
Dec 30, 2025 – Jan 27, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
70 m
Deepest dive
3:53
Longest dive
72
Dives
- Sightings
- 5
- Days between first and last sighting
- 28
- Deepest dive on record
- 70 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 | 82 m | — | 70 m |
| Jan 2, 2026 | 96 m | 17.0°C | 66 m |
| Jan 5, 2026 | 82 m | 14.8°C | 60 m |
| Jan 26, 2026 | 69 m | 14.3°C | 51 m |
| Jan 27, 2026 | 99 m | 16.4°C | 45 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
70 m
Deepest dive
3:53
Longest dive
72
Dives
27 m
Avg dive depth
5
Sightings
28
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 (82 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 30, 2025
measured- Seafloor depth
- 82 m
- Sea-surface temperature
- —
- Distance from shore
- 8.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 69 m – 99 m
- Sea-surface temperature
- 14.3°C – 17.0°C
- Distance from shore
- 3.0 km – 11.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.