HW-MN0805845 – Residency
6th sighting in South Africa
HW-MN0805845 @150520
Dec 31, 2025 – Jan 27, 2026 · South Africa
South Africa · Dec 2025 – Jan 2026
86 m
Deepest dive
2:50
Longest dive
70
Dives
- Sightings
- 6
- Days between first and last sighting
- 27
- Deepest dive on record
- 86 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 31, 2025 | 86 m | 15.1°C | 66 m |
| Dec 31, 2025 | 75 m | 15.1°C | 63 m |
| Jan 5, 2026 | 82 m | 14.8°C | 49 m |
| Jan 17, 2026 | 63 m | 17.9°C | 54 m |
| Jan 26, 2026 | 85 m | 15.1°C | 35 m |
| Jan 27, 2026 | 99 m | 16.4°C | 86 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
86 m
Deepest dive
2:50
Longest dive
70
Dives
25 m
Avg dive depth
6
Sightings
27
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 (99 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jan 27, 2026
measured- Seafloor depth
- 99 m
- Sea-surface temperature
- 16.4°C
- Distance from shore
- 11.0 km
Across the residency · 6 sightings
measured- Seafloor depth
- 63 m – 99 m
- Sea-surface temperature
- 14.8°C – 17.9°C
- Distance from shore
- 2.0 km – 14.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 6 catalogued encounters on Happywhale.