Station Name: San Juan, PR
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
PR-25R
San Juan, PR 00901
San Juan County

GPS Coordinates: 18.474, -66.099

Nearby Water Temperatures

Heat Advisory issued September 13 at 2:43AM AST until September 13 at 3:00PM AST by NWS San Juan PR

Effective: Sat September 13, 2025, 2:43 AM
Expires: Sat September 13, 2025, 3:00 PM

* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...All coastal and urban areas, as well as the valleys of the eastern interior in Puerto Rico, Vieques, Culebra and all of the Virgin Islands. * WHEN...From 10 AM this morning to 3 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued September 13 at 2:43AM AST until September 13 at 3:00PM AST by NWS San Juan PR

Effective: Sat September 13, 2025, 2:43 AM
Expires: Sat September 13, 2025, 3:00 PM

* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...All coastal and urban areas, as well as the valleys of the eastern interior in Puerto Rico, Vieques, Culebra and all of the Virgin Islands. * WHEN...From 10 AM this morning to 3 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued September 13 at 2:43AM AST until September 13 at 3:00PM AST by NWS San Juan PR

Effective: Sat September 13, 2025, 2:43 AM
Expires: Sat September 13, 2025, 3:00 PM

* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...All coastal and urban areas, as well as the valleys of the eastern interior in Puerto Rico, Vieques, Culebra and all of the Virgin Islands. * WHEN...From 10 AM this morning to 3 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued September 13 at 2:43AM AST until September 13 at 3:00PM AST by NWS San Juan PR

Effective: Sat September 13, 2025, 2:43 AM
Expires: Sat September 13, 2025, 3:00 PM

* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...All coastal and urban areas, as well as the valleys of the eastern interior in Puerto Rico, Vieques, Culebra and all of the Virgin Islands. * WHEN...From 10 AM this morning to 3 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Heat Advisory issued September 13 at 2:43AM AST until September 13 at 3:00PM AST by NWS San Juan PR

Effective: Sat September 13, 2025, 2:43 AM
Expires: Sat September 13, 2025, 3:00 PM

* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...All coastal and urban areas, as well as the valleys of the eastern interior in Puerto Rico, Vieques, Culebra and all of the Virgin Islands. * WHEN...From 10 AM this morning to 3 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.