FZPQ50 PGUM 200726 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 526 PM ChST Wed May 20 2026 .DISCUSSION...A high risk of rip currents along east-facing reefs is expected through Thursday afternoon. There is a moderate risk of rip currents along north-facing reefs for the next several days. The rip current risk along east-facing reefs may drop to moderate by Thursday night, so conditions will continue to be monitored. $$ GUZ001-MPZ001>003-202230- Guam-Rota-Tinian-Saipan- 526 PM ChST Wed May 20 2026 ...HIGH RISK OF RIP CURRENTS THROUGH THURSDAY AFTERNOON ALONG EAST FACING REEFS... 36 hour Surf Zone Forecast for the Marianas from 600 PM Wednesday through 600 AM Friday .TONIGHT... Rip Current Risk.....High *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............7 to 9 feet. South facing reefs............2 to 4 feet. West facing reefs............1 to 3 feet. Swell/Period Primary swell................East at 5 to 7 feet. Primary period...............8 seconds. Water Temperature Tanapag buoy.......... 84 Degrees. Winds...............East at 15 to 20 mph. .THURSDAY... Rip Current Risk.....High *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............7 to 9 feet. South facing reefs............2 to 4 feet. West facing reefs............1 to 3 feet. Swell/Period Primary swell................East at 5 to 7 feet. Primary period...............8 seconds. Max Heat Index.........Around 101. Winds...............East at 15 to 20 mph. .THURSDAY NIGHT... Rip Current Risk.....Moderate *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............6 to 8 feet. South facing reefs............2 to 4 feet. West facing reefs............1 to 3 feet. Swell/Period Primary swell................East at 4 to 6 feet. Primary period...............8 seconds. Winds...............East at 10 to 20 mph. Tide information for the next 36 hours... At Apra Harbor, Guam... Low tide -0.6 feet at 4:32 PM Wednesday High tide 2.6 feet at 12:12 AM Thursday Low tide 1.9 feet at 5:25 AM Thursday High tide 2.5 feet at 9:47 AM Thursday Low tide -0.3 feet at 5:28 PM Thursday High tide 2.6 feet at 1:11 AM Friday Low tide 1.8 feet at 6:34 AM Friday At Rota Island... Low tide -0.5 feet at 4:26 PM Wednesday High tide 2.4 feet at 12:09 AM Thursday Low tide 1.7 feet at 5:19 AM Thursday High tide 2.3 feet at 9:44 AM Thursday Low tide -0.3 feet at 5:22 PM Thursday High tide 2.4 feet at 1:08 AM Friday Low tide 1.7 feet at 6:28 AM Friday At Tinian Island... Low tide -0.2 feet at 4:09 PM Wednesday High tide 1.9 feet at 12:10 AM Thursday Low tide 0.6 feet at 5:02 AM Thursday High tide 1.8 feet at 9:45 AM Thursday Low tide -0.1 feet at 5:05 PM Thursday High tide 1.9 feet at 1:09 AM Friday Low tide 0.6 feet at 6:11 AM Friday At Tanapag Harbor, Saipan... Low tide -0.7 feet at 4:35 PM Wednesday High tide 2.5 feet at 12:41 AM Thursday Low tide 1.8 feet at 6:03 AM Thursday High tide 2.0 feet at 9:33 AM Thursday Low tide -0.5 feet at 5:34 PM Thursday High tide 2.4 feet at 1:28 AM Friday Low tide 1.6 feet at 7:16 AM Friday * Low Risk of rip currents - Strong currents can still occur near jetties and reef channels. Always have a flotation device with you in the water. Moderate Risk of rip currents - Wave conditions support stronger or more frequent rip currents. Always have a flotation device with you in the water. High Risk of rip currents - Large waves will produce strong rip currents, especially along narrow reefs and beaches. Rip currents will be life threatening. If caught in a rip current, swim parallel to the beach rather than against the current. $$