| Shipwrecks |
- 1 Dec: HMAS Armidale
- 2 Dec: Lupo, HMS Quentin
- 3 Dec: Empire Dabchick, HMS Penylan
- 4 Dec: Muzio Attendolo, HMS Traveller
- 6 Dec: USS Grebe
- 7 Dec: Ceramic
- 8 Dec: U-254, U-611
- 9 Dec: I-3, HMS Marigold
- 11 Dec: HMS Blean
- 12 Dec: HMS P222, Teruzuki
- 14 Dec: Canberra Maru
- 15 Dec: U-626
- 16 Dec: USS S-49
- 17 Dec: HMS Firedrake
- 18 Dec: HMS Partridge, Tenryū
- 21 Dec: I-4
- 23 Dec: Sperrbrecher 138
- 25 Dec: HMS P48
- 26 Dec: U-357
- 27 Dec: U-336
- 28 Dec: Choyo Maru
- 29 Dec: USS Wasmuth
- 30 Dec: HMS Fidelity
- 31 Dec: HMS Achates, HMS Bramble, Friedrich Eckoldt, USS Rescuer
- Unknown date: HMS P311
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