FZPQ50 PGUM 100755 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 555 PM ChST Tue Mar 10 2026 .DISCUSSION...A moderate risk of rip currents is expected along north, east and west facing reefs of the Marianas tonight, before dropping to low along west reefs thereafter. As more significant northerly swells make their way across the region in the second half of the week, hazardous surf may return to north facing reefs by the weekend. $$ GUZ001-MPZ001>003-102000- Guam-Rota-Tinian-Saipan- 555 PM ChST Tue Mar 10 2026 36 hour Surf Zone Forecast for the Marianas from 600 PM Tuesday through 600 AM Thursday .TONIGHT... Rip Current Risk.....Moderate *. Surf Height North facing reefs............6 to 8 feet. East facing reefs............4 to 6 feet. South facing reefs............1 to 3 feet. West facing reefs............3 to 5 feet. Swell/Period Primary swell................North at 4 to 6 feet. Primary period...............10 seconds. Secondary swell..............Northeast at around 3 feet. Secondary period.............12 seconds. Tertiary swell...............Southwest at around 2 feet. Tertiary period..............8 seconds. Water Temperature Ipan buoy..........82 Degrees. Winds...............Northeast at 15 to 20 mph with occasional gusts to 30 mph. .WEDNESDAY... Rip Current Risk.....Moderate *. Surf Height North facing reefs............5 to 7 feet. East facing reefs............5 to 7 feet. South facing reefs............2 to 3 feet. West facing reefs............3 to 4 feet. Swell/Period Primary swell................North at 3 to 5 feet. Primary period...............9 to 10 seconds. Secondary swell..............Northeast at 3 to 4 feet. Secondary period.............11 seconds. Tertiary swell...............Southwest at around 2 feet. Tertiary period..............8 seconds. Max Heat Index.........Around 97. Winds...............East at 10 to 15 mph becoming 20 mph in the afternoon. .WEDNESDAY NIGHT... Rip Current Risk.....Moderate *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............4 to 6 feet. South facing reefs............1 to 2 feet. West facing reefs............2 to 4 feet. Swell/Period Primary swell................North at 3 to 4 feet. Primary period...............8 seconds. Secondary swell..............Northeast at 3 to 4 feet. Secondary period.............11 seconds. Winds...............East at 20 mph shifting to the southeast 10 mph after midnight. Tide information for the next 36 hours... At Apra Harbor, Guam... Low tide 0.1 feet at 6:37 PM Tuesday High tide 1.7 feet at 2:26 AM Wednesday Low tide 1.5 feet at 6:36 AM Wednesday High tide 1.8 feet at 11:36 AM Wednesday Low tide 0.1 feet at 7:37 PM Wednesday High tide 1.7 feet at 4:06 AM Thursday At Rota Island... Low tide 0.1 feet at 6:31 PM Tuesday High tide 1.6 feet at 2:23 AM Wednesday Low tide 1.4 feet at 6:30 AM Wednesday High tide 1.7 feet at 11:33 AM Wednesday Low tide 0.1 feet at 7:31 PM Wednesday High tide 1.6 feet at 4:03 AM Thursday At Tinian Island... Low tide 0.0 feet at 6:14 PM Tuesday High tide 1.2 feet at 2:24 AM Wednesday Low tide 0.5 feet at 6:13 AM Wednesday High tide 1.4 feet at 11:34 AM Wednesday Low tide 0.0 feet at 7:14 PM Wednesday High tide 1.3 feet at 4:04 AM Thursday At Tanapag Harbor, Saipan... Low tide 0.3 feet at 6:54 PM Tuesday High tide 1.7 feet at 3:41 AM Wednesday Low tide 1.7 feet at 6:42 AM Wednesday High tide 1.8 feet at 11:08 AM Wednesday Low tide 0.3 feet at 7:59 PM Wednesday High tide 1.8 feet at 5:09 AM Thursday * 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. $$