


Surf Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
627 FZPQ50 PGUM 230600 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 400 PM ChST Mon Jun 23 2025 .DISCUSSION...A low risk of rip currents continues through Tuesday. The rip risk is expected to increase to moderate along east facing reefs Tuesday night through the end of the week. There will be a moderate risk for lightning through the week. $$ GUZ001-MPZ001>003-232100- Guam-Rota-Tinian-Saipan- 400 PM ChST Mon Jun 23 2025 36 hour Surf Zone Forecast for the Marianas from 600 PM Monday through 600 AM Wednesday .TONIGHT... Rip Current Risk.....Low *. Surf Height North facing reefs............1 to 3 feet. East facing reefs............2 to 4 feet. South facing reefs............1 to 2 feet. West facing reefs............1 to 2 feet. Swell/Period Primary swell................East at 1 to 3 feet. Primary period...............8 seconds. Water Temperature Ritidian buoy..........87 Degrees. Winds...............Southeast at around 10 mph. .TUESDAY... Rip Current Risk.....Low *. Surf Height North facing reefs............1 to 3 feet. East facing reefs............2 to 4 feet. South facing reefs............1 to 2 feet. West facing reefs............1 to 2 feet. Swell/Period Primary swell................East at 2 to 3 feet. Primary period...............8 seconds. Max Heat Index.........Around 103. Winds...............East at around 10 mph. .TUESDAY NIGHT... Rip Current Risk.....Moderate *. Surf Height North facing reefs............1 to 3 feet. East facing reefs............3 to 5 feet. South facing reefs............1 to 2 feet. West facing reefs............1 to 2 feet. Swell/Period Primary swell................East at 2 to 4 feet. Primary period...............8 seconds. Winds...............Light and variable. Tide information for the next 36 hours... At Apra Harbor, Guam... High tide 2.5 feet at 7:15 PM Monday Low tide 1.9 feet at 11:57 PM Monday High tide 2.8 feet at 5:05 AM Tuesday Low tide -0.5 feet at 12:41 PM Tuesday High tide 2.7 feet at 8:12 PM Tuesday Low tide 2.0 feet at 1:04 AM Wednesday At Rota Island... High tide 2.4 feet at 7:12 PM Monday Low tide 1.8 feet at 11:51 PM Monday High tide 2.6 feet at 5:02 AM Tuesday Low tide -0.5 feet at 12:35 PM Tuesday High tide 2.5 feet at 8:09 PM Tuesday Low tide 1.8 feet at 12:58 AM Wednesday At Tinian Island... High tide 1.6 feet at 7:12 PM Monday Low tide 1.5 feet at 10:47 PM Monday High tide 2.1 feet at 4:07 AM Tuesday Low tide -0.6 feet at 12:16 PM Tuesday High tide 1.8 feet at 8:11 PM Tuesday Low tide 1.6 feet at 11:52 PM Tuesday At Tanapag Harbor, Saipan... High tide 2.2 feet at 7:40 PM Monday Low tide 1.8 feet at 11:36 PM Monday High tide 2.4 feet at 4:48 AM Tuesday Low tide -0.8 feet at 12:42 PM Tuesday High tide 2.3 feet at 8:38 PM Tuesday Low tide 1.9 feet at 12:53 AM Wednesday * 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. If caught in a rip current, swim parallel to the beach rather than against the current. $$