| Phillips Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Picnic Rocks Beach | Michigan | James Bay | 15°C(59°F) | July, August, September, October | Live SST → |
| Pierce Beach | Massachusetts | James Bay | 20.2°C(68.4°F) | June, July, August, September | Live SST → |
| Pine Island Park | Florida | Gulf of Mexico | 29.1°C(84.4°F) | May, June, July, August, September, October | Live SST → |
| Pirates Cove | California | Coastal Waters | 14.5°C(58.1°F) | July, August, September, October | Live SST → |
| Pirates Cove Beach | New Hampshire | James Bay | 16.9°C(62.4°F) | June, July, August, September | Live SST → |
| Pirates' Beach | Texas | Gulf of Mexico | 29.2°C(84.6°F) | May, June, July, August, September, October | Live SST → |
| Playa Canalejo | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa de Cascajo | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa Dienero | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa Luis Peña | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa Manzanilla | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa Melones | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa San Juan Leighton | California | Gulf of California | 19.4°C(66.9°F) | July, August, September, October | Live SST → |
| Playa Sardinera | United States | Caribbean Sea | 29.3°C(84.7°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa Tamarindo | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playa Tortuga | United States | Caribbean Sea | 29.2°C(84.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Playalinda Beach | Florida | Gulf of Mexico | 28.3°C(82.9°F) | May, June, July, August, September, October | Live SST → |
| Playalinda Beach (Nudist Area) | Florida | Gulf of Mexico | 28.3°C(82.9°F) | May, June, July, August, September, October | Live SST → |
| Pleasant Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Pleasure Bay Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Pleasure Beach | Connecticut | James Bay | 22.3°C(72.1°F) | July, August, September | Live SST → |
| Plum Bank Beach | Connecticut | James Bay | 20.9°C(69.6°F) | July, August, September, October | Live SST → |
| Plum Beach | Rhode Island | James Bay | 19.6°C(67.3°F) | July, August, September, October | Live SST → |
| Pobblestone Cove | Maine | James Bay | 12.3°C(54.1°F) | July, August, September, October | Live SST → |
| Poche Beach | California | Gulf of California | 21.3°C(70.3°F) | July, August, September, October | Live SST → |
| Poʻipū Beach | Hawaii | North Pacific Ocean | 27°C(80.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Point Reyes Beach | California | Coastal Waters | 13.2°C(55.8°F) | August, September, October, November | Live SST → |
| Polo Beach | Hawaii | Coastal Waters | 26.8°C(80.2°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Pond Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Popham Beach | Maine | James Bay | 16°C(60.8°F) | June, July, August, September | Live SST → |
| Poplar Beach | California | Gulf of California | 14.9°C(58.8°F) | July, August, September, October | Live SST → |
| Porretto Beach | Texas | Gulf of Mexico | 29.1°C(84.4°F) | May, June, July, August, September, October | Live SST → |
| Port Clinton Public Swimming Beach | Ohio | James Bay | 21.6°C(70.9°F) | June, July, August, September | Live SST → |
| Port Hueneme Beach | California | Gulf of California | 19.4°C(66.9°F) | July, August, September, October | Live SST → |
| Post Island Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Potbelly Beach | California | Gulf of California | 14.9°C(58.8°F) | August, September, October, November | Live SST → |
| Pounders Beach | Hawaii | Coastal Waters | 26.7°C(80.1°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Poverty Island Beach | Connecticut | James Bay | 20.9°C(69.6°F) | July, August, September, October | Live SST → |
| Pratts Beach | New York | James Bay | 21.7°C(71.1°F) | June, July, August, September | Live SST → |
| Preston Beach | Massachusetts | James Bay | 17.6°C(63.7°F) | June, July, August, September | Live SST → |
| Prospect Beach | Connecticut | James Bay | 22.1°C(71.8°F) | July, August, September | Live SST → |
| Pryibil Beach | New York | James Bay | 21.7°C(71.1°F) | June, July, August, September | Live SST → |
| Pu'u Poa Beach | Hawaii | North Pacific Ocean | 27°C(80.6°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Pudding Creek Beach | California | Coastal Waters | 13.1°C(55.6°F) | August, September, October, November | Live SST → |
| Puerco Beach | California | Gulf of California | 20.2°C(68.4°F) | July, August, September, October | Live SST → |
| Punalu'u Black Sand Beach | Hawaii | Coastal Waters | 27.2°C(81°F) | January, February, March, April, May, June, July, August, September, October, November, December | Live SST → |
| Quarry Beach | California | Coastal Waters | 14.5°C(58.1°F) | July, August, September, October | Live SST → |
| Quotonset Beach | Connecticut | James Bay | 20.9°C(69.6°F) | July, August, September, October | Live SST → |
| Race Point Beach | Massachusetts | James Bay | 18°C(64.4°F) | June, July, August, September | Live SST → |