HW-MN0805844 – Residency
4th sighting in South Africa
HW-MN0805844 @150517
Dec 30, 2025 – Jan 7, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
80 m
Deepest dive
4:11
Longest dive
59
Dives
- Sightings
- 4
- Days between first and last sighting
- 8
- Deepest dive on record
- 80 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 | 89 m | — | 80 m |
| Jan 5, 2026 | 82 m | 14.8°C | 40 m |
| Jan 6, 2026 | 93 m | 15.2°C | 77 m |
| Jan 7, 2026 | 92 m | 17.5°C | 80 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
80 m
Deepest dive
4:11
Longest dive
59
Dives
25 m
Avg dive depth
4
Sightings
8
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 (89 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Dec 30, 2025
measured- Seafloor depth
- 89 m
- Sea-surface temperature
- —
- Distance from shore
- 7.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 82 m – 93 m
- Sea-surface temperature
- 14.8°C – 17.5°C
- Distance from shore
- 5.0 km – 10.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.