| Bherwerre Beach | Jervis Bay Territory | Tasman Sea | 17.8°C(64°F) | January, February, March | Live SST → |
| Bicton Baths | Western Australia | Coastal Waters | 18.6°C(65.5°F) | January, February, March, April | Live SST → |
| Big Sandhill Beach | Australia | Coral Sea | 21.7°C(71.1°F) | January, February, March, April, November, December | Live SST → |
| Bilgola Beach | New South Wales | Tasman Sea | 18.3°C(64.9°F) | January, February, March, April | Live SST → |
| Bilinga Beach | New South Wales | Coral Sea | 21.4°C(70.5°F) | January, February, March, April, December | Live SST → |
| Bindijine Beach | New South Wales | Tasman Sea | 17.8°C(64°F) | January, February, March | Live SST → |
| Black Head Beach | New South Wales | Tasman Sea | 19°C(66.2°F) | January, February, March, April, May, December | Live SST → |
| Black River Beach | Tasmania | Tasman Sea | 12°C(53.6°F) | January, February, March, April | Live SST → |
| Blackmans Bay Beach | Tasmania | Tasman Sea | 12°C(53.6°F) | January, February, March, April | Live SST → |
| Blackwoods Beach | New South Wales | Tasman Sea | 18.2°C(64.8°F) | January, February, March, April | Live SST → |
| Blenheim Beach | New South Wales | Tasman Sea | 17.8°C(64°F) | January, February, March | Live SST → |
| Blinky Beach | Lord Howe Island | Tasman Sea | 19.2°C(66.6°F) | January, February, March, April, December | Live SST → |
| Blossoms Beach Track | Western Australia | Coastal Waters | 17.1°C(62.8°F) | January, February, March, April | Live SST → |
| Blowhole Beach | South Australia | Coastal Waters | 14.1°C(57.4°F) | January, February, March, April | Live SST → |
| Blueys Beach | New South Wales | Tasman Sea | 19.2°C(66.6°F) | January, February, March, April, May, December | Live SST → |
| Bluff Beach | Tasmania | Tasman Sea | 12.2°C(54°F) | January, February, March, April | Live SST → |
| Boat Harbor Beach | South Australia | Coastal Waters | 14°C(57.2°F) | January, February, March, April | Live SST → |
| Boat Harbour Beach | New South Wales | Tasman Sea | 18.2°C(64.8°F) | January, February, March, April | Live SST → |
| Boltons Beach | Tasmania | Tasman Sea | 12.3°C(54.1°F) | January, February, March, April | Live SST → |
| Bombo Beach | New South Wales | Tasman Sea | 17.8°C(64°F) | January, February, March, April | Live SST → |
| Bondi Beach | New South Wales | Tasman Sea | 18.4°C(65.1°F) | January, February, March, April | Live SST → |
| Bondi Beach (Sydney) | New South Wales | Tasman Sea / Pacific Ocean | 17.4°C(63.3°F) | Dec, Jan, Feb, Mar, Apr | Live SST → |
| Boobyalla Beach | Tasmania | Tasman Sea | 12.1°C(53.8°F) | January, February, March, April | Live SST → |
| Boomer Beach | South Australia | Coastal Waters | 14°C(57.2°F) | January, February, March, December | Live SST → |
| Boomerang Beach | New South Wales | Tasman Sea | 19.2°C(66.6°F) | January, February, March, April, May, December | Live SST → |
| Boranup Beach | Western Australia | Coastal Waters | 18.5°C(65.3°F) | February, March, April, May | Live SST → |
| Boronia Beach | Tasmania | Tasman Sea | 12°C(53.6°F) | January, February, March, April | Live SST → |
| Bow Park | Western Australia | Coastal Waters | 16.4°C(61.5°F) | January, February, March, April | Live SST → |
| Box Beach | New South Wales | Tasman Sea | 18.9°C(66°F) | January, February, March, April, December | Live SST → |
| Bradley's Beach | New South Wales | Tasman Sea | 18.3°C(64.9°F) | January, February, March, April | Live SST → |
| Bridgewater Bay Beach | Victoria | Tasman Sea | 12.8°C(55°F) | January, February, March, December | Live SST → |
| Brierly Point Beach | New South Wales | Tasman Sea | 16°C(60.8°F) | January, February, March, April | Live SST → |
| Brighton Beach | Victoria | Tasman Sea | 12.2°C(54°F) | January, February, March, December | Live SST → |
| British Admiral Beach | Tasmania | Tasman Sea | 13.4°C(56.1°F) | January, February, March, April | Live SST → |
| Broadbeach Beach | Queensland | Coral Sea | 21.4°C(70.5°F) | January, February, March, April, December | Live SST → |
| Bronte Beach | New South Wales | Tasman Sea | 18.4°C(65.1°F) | January, February, March, April | Live SST → |
| Browns Beach | South Australia | Coastal Waters | 14.6°C(58.3°F) | January, February, March, April | Live SST → |
| Bryans Beach | Tasmania | Tasman Sea | 12.6°C(54.7°F) | January, February, March, April | Live SST → |
| Buckley's Beach | New South Wales | Tasman Sea | 17.3°C(63.1°F) | January, February, March, April | Live SST → |
| Bulcock Beach | Queensland | Coral Sea | 21.5°C(70.7°F) | January, February, March, April, November, December | Live SST → |
| Bulgo Beach | New South Wales | Tasman Sea | 18.2°C(64.8°F) | January, February, March, April | Live SST → |
| Bull Pup Beach | New South Wales | Tasman Sea | 17°C(62.6°F) | January, February, March, April | Live SST → |
| Bulli Beach | New South Wales | Tasman Sea | 18.3°C(64.9°F) | January, February, March, April | Live SST → |
| Bullimah Beach | New South Wales | Tasman Sea | 18.3°C(64.9°F) | January, February, March, April | Live SST → |
| Bungan Beach | New South Wales | Tasman Sea | 18.3°C(64.9°F) | January, February, March, April | Live SST → |
| Bungo Beach | New South Wales | Tasman Sea | 16°C(60.8°F) | January, February, March, April | Live SST → |
| Bunker Bay Beach | Western Australia | Coastal Waters | 17.6°C(63.7°F) | January, February, March, April | Live SST → |
| Burleigh Beach | Queensland | Coral Sea | 21.4°C(70.5°F) | January, February, March, April, December | Live SST → |
| Burning Palms Beach | New South Wales | Tasman Sea | 18.2°C(64.8°F) | January, February, March, April | Live SST → |
| Burrill Beach | New South Wales | Tasman Sea | 17.3°C(63.1°F) | January, February, March, April | Live SST → |