| Goddard Memorial State Park Beach | Rhode Island | James Bay | 19.6°C(67.3°F) | July, August, September, October | Live SST → |
| Goochs Beach | Maine | James Bay | 16.5°C(61.7°F) | June, July, August, September | Live SST → |
| Goose Rocks Beach | Maine | James Bay | 16.5°C(61.7°F) | June, July, August, September | Live SST → |
| Gooseberry Beach | United States | James Bay | 19.6°C(67.3°F) | July, August, September, October | Live SST → |
| Goss Beach | Maine | James Bay | 13.7°C(56.7°F) | July, August, September, October | Live SST → |
| Grassy Point Beach | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Graves Beach | Massachusetts | James Bay | 17.5°C(63.5°F) | June, July, August, September | Live SST → |
| Gray Beach | Massachusetts | James Bay | 17.5°C(63.5°F) | June, July, August, September | Live SST → |
| Gray Whale Cove State Beach | California | Coastal Waters | 14.7°C(58.5°F) | July, August, September, October | Live SST → |
| Grays Beach | Massachusetts | James Bay | 19.2°C(66.6°F) | June, July, August, September | Live SST → |
| Grays Beach | Maine | James Bay | 12.3°C(54.1°F) | July, August, September, October | Live SST → |
| Great Beach | United States | James Bay | 12.3°C(54.1°F) | July, August, September, October | Live SST → |
| Great Hammock Beach | Connecticut | James Bay | 20.9°C(69.6°F) | July, August, September, October | Live SST → |
| Green Harbor Beach | Connecticut | James Bay | 20.4°C(68.7°F) | July, August, September, October | Live SST → |
| Greystone Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Grimmells Beach | Rhode Island | James Bay | 20.2°C(68.4°F) | June, July, August, September | Live SST → |
| Groton Beach | Connecticut | James Bay | 20.4°C(68.7°F) | July, August, September, October | Live SST → |
| Groton Long Point Main Beach | Connecticut | James Bay | 20.4°C(68.7°F) | July, August, September, October | Live SST → |
| Groton Long Point South Beach | Connecticut | James Bay | 20.4°C(68.7°F) | July, August, September, October | Live SST → |
| Grove Beach | Connecticut | James Bay | 20.9°C(69.6°F) | July, August, September, October | Live SST → |
| Guard Shore | Virginia | Coastal Waters | 24.9°C(76.8°F) | July, August, September | Live SST → |
| Gulf Shores Public Beach | Alabama | Gulf of Mexico | 29.1°C(84.4°F) | May, June, July, August, September, October | Live SST → |
| Gun Rock Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Gunnison Beach | New Jersey | James Bay | 21.9°C(71.4°F) | June, July, August, September | Live SST → |
| Ha'ena Beach | Hawaii | North Pacific Ocean | 27.1°C(80.8°F) | January, February, April, May, June, July, August, September, October, November, December | Live SST → |
| Hāʻula Beach | Hawaii | North Pacific Ocean | 27°C(80.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Haigis Beach | Massachusetts | James Bay | 19.2°C(66.6°F) | June, July, August, September | Live SST → |
| Haikioawa Landing | Hawaii | Coastal Waters | 27°C(80.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Haleiwa Alii Beach | Hawaii | Coastal Waters | 26.8°C(80.2°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Hales Beach | Maine | James Bay | 14.6°C(58.3°F) | July, August, September, October | Live SST → |
| Hamilton Beach | California | Gulf of California | 20.8°C(69.4°F) | July, August, September, October | Live SST → |
| Hammonasset Beach | Connecticut | James Bay | 21.6°C(70.9°F) | July, August, September, October | Live SST → |
| Hammond Marina Beach | Indiana | James Bay | 20.3°C(68.5°F) | June, July, August, September | Live SST → |
| Hamoa beach | Hawaii | Coastal Waters | 26.7°C(80.1°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Hampton Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Hana Beach Park | Hawaii | Coastal Waters | 26.6°C(79.9°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Hanaka‘ilio Beach | Hawaii | Coastal Waters | 26.7°C(80.1°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Hanakapiʻai Beach | Hawaii | North Pacific Ocean | 27.1°C(80.8°F) | January, February, April, May, June, July, August, September, October, November, December | Live SST → |
| Hanauma Beach | Hawaii | Coastal Waters | 26.8°C(80.2°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Hanover Town Beach | New York | James Bay | 21.3°C(70.3°F) | June, July, August, September | Live SST → |
| Hapuna Beach | Hawaii | Coastal Waters | 27.1°C(80.8°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Harbor Beach | California | Gulf of California | 21.3°C(70.3°F) | July, August, September, October | Live SST → |
| Harbor Beach | United States | James Bay | 14.1°C(57.4°F) | July, August, September, October | Live SST → |
| Harbor Point Beach | Connecticut | James Bay | 22.3°C(72.1°F) | July, August, September | Live SST → |
| Harbor View Beach | Connecticut | James Bay | 22.3°C(72.1°F) | July, August, September | Live SST → |
| Hardings Beach | Massachusetts | James Bay | 18.5°C(65.3°F) | June, July, August, September | Live SST → |
| Harry Tappen Beach | New York | James Bay | 21.7°C(71.1°F) | June, July, August, September | Live SST → |
| Hart Bay Beach | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Harveys Beach | Connecticut | James Bay | 20.9°C(69.6°F) | July, August, September, October | Live SST → |
| Haserot Beach | Michigan | James Bay | 18.5°C(65.3°F) | July, August, September, October | Live SST → |