HW-MN0805639 – Residency
5th sighting in South Africa
HW-MN0805639 @149385
Dec 4 – 30, 2025 · South Africa
South Africa · Dec 2025
64 m
Deepest dive
2:28
Longest dive
73
Dives
- Sightings
- 5
- Days between first and last sighting
- 26
- Deepest dive on record
- 64 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 4, 2025 | 90 m | — | 43 m |
| Dec 4, 2025 | 71 m | — | 64 m |
| Dec 9, 2025 | 17 m | — | 14 m |
| Dec 10, 2025 | 48 m | — | 31 m |
| Dec 30, 2025 | 26 m | — | 24 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
64 m
Deepest dive
2:28
Longest dive
73
Dives
19 m
Avg dive depth
5
Sightings
26
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 · Dec 4, 2025
measured- Seafloor depth
- 71 m
- Sea-surface temperature
- —
- Distance from shore
- 2.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 17 m – 90 m
- Sea-surface temperature
- —
- Distance from shore
- 1.0 km – 7.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.