Weather Warnings for Guam

Issued by the National Weather Service

Current watches, warnings, and advisories for Guam
Alerts Updated: January 30, 2026, 5:32 pm  UTC


High Surf Advisory issued January 31 at 3:32AM ChST until February 2 at 4:00PM ChST by NWS Tiyan GU

Summary: * WHAT...Large breaking waves of 8 to 11 feet and dangerous rip currents. * WHERE...High Surf for north facing reefs of the Marianas. High Risk of Rip Currents for north and east facing reefs. * WHEN...From 4 PM this afternoon to 4 PM ChST Monday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf is already elevated due to a complex mixture of swells moving through the region, generated by distant systems. As a shear line descends into the islands and a pulse of northerly swell moves into the region, hazardous surf around 9 feet for north facing reefs and dangerous rip currents along north and east facing reefs are expected to develop. Surf is expected to peak around 11 feet Sunday before slowly decreasing Sunday night and Monday as the shear line weakens and the northerly swell diminishes.
Severity:  Minor    Effective:  January 31, 2026, 3:32 am      Expires:  January 31, 2026, 5:45 pm
Area:  Guam; Rota; Tinian; Saipan


Rip Current Statement issued January 31 at 3:32AM ChST until February 2 at 4:00PM ChST by NWS Tiyan GU

Summary: * WHAT...Large breaking waves of 8 to 11 feet and dangerous rip currents. * WHERE...High Surf for north facing reefs of the Marianas. High Risk of Rip Currents for north and east facing reefs. * WHEN...From 4 PM this afternoon to 4 PM ChST Monday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf is already elevated due to a complex mixture of swells moving through the region, generated by distant systems. As a shear line descends into the islands and a pulse of northerly swell moves into the region, hazardous surf around 9 feet for north facing reefs and dangerous rip currents along north and east facing reefs are expected to develop. Surf is expected to peak around 11 feet Sunday before slowly decreasing Sunday night and Monday as the shear line weakens and the northerly swell diminishes.
Severity:  Moderate    Effective:  January 31, 2026, 3:32 am      Expires:  January 31, 2026, 5:45 pm
Area:  Guam; Rota; Tinian; Saipan