549
FZPQ50 PGUM 301922
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
522 AM CHST TUE MAR 31 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG
NORTH AND EAST FACING REEFS AND LOW RISK ALONG SOUTH AND WEST FACING
REEFS OVER THE NEXT FEW DAYS, WITH PRIMARY SWELL FROM THE NORTH TO
NORTHEAST. THE EASTERLY TRADE SWELL MAY BUILD SLIGHTLY TOWARDS THE
END OF THE WEEK.
GUZ001-MPZ001>003-311030-
GUAM-ROTA-TINIAN-SAIPAN-
522 AM CHST TUE MAR 31 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM TUESDAY
THROUGH 600 PM WEDNESDAY
TODAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 8 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 4 TO 6 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTH AT AROUND 3 FEET.
SECONDARY PERIOD.............10 SECONDS.
TERTIARY SWELL...............EAST AT AROUND 2 FEET.
TERTIARY PERIOD..............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........82 DEGREES.
MAX HEAT INDEX.........AROUND 100.
WINDS...............EAST AT 10 TO 20 MPH.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 4 TO 6 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WINDS...............NORTHEAST AT 10 TO 20 MPH.
WEDNESDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 6 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 3 TO 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 3 FEET.
SECONDARY PERIOD.............9 SECONDS.
MAX HEAT INDEX.........AROUND 100.
WINDS...............EAST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.3 FEET AT 6:58 AM TUESDAY
LOW TIDE 0.8 FEET AT 1:02 PM TUESDAY
HIGH TIDE 2.2 FEET AT 6:43 PM TUESDAY
LOW TIDE 0.4 FEET AT 1:07 AM WEDNESDAY
HIGH TIDE 2.4 FEET AT 7:21 AM WEDNESDAY
LOW TIDE 0.5 FEET AT 1:40 PM WEDNESDAY
HIGH TIDE 2.3 FEET AT 7:34 PM WEDNESDAY
AT ROTA ISLAND...
HIGH TIDE 2.2 FEET AT 6:55 AM TUESDAY
LOW TIDE 0.7 FEET AT 12:56 PM TUESDAY
HIGH TIDE 2.1 FEET AT 6:40 PM TUESDAY
LOW TIDE 0.4 FEET AT 1:01 AM WEDNESDAY
HIGH TIDE 2.2 FEET AT 7:18 AM WEDNESDAY
LOW TIDE 0.5 FEET AT 1:34 PM WEDNESDAY
HIGH TIDE 2.1 FEET AT 7:31 PM WEDNESDAY
AT TINIAN ISLAND...
HIGH TIDE 1.7 FEET AT 6:56 AM TUESDAY
LOW TIDE 0.3 FEET AT 12:39 PM TUESDAY
HIGH TIDE 1.6 FEET AT 6:41 PM TUESDAY
LOW TIDE 0.1 FEET AT 12:44 AM WEDNESDAY
HIGH TIDE 1.7 FEET AT 7:19 AM WEDNESDAY
LOW TIDE 0.2 FEET AT 1:17 PM WEDNESDAY
HIGH TIDE 1.7 FEET AT 7:32 PM WEDNESDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.2 FEET AT 6:56 AM TUESDAY
LOW TIDE 0.7 FEET AT 12:58 PM TUESDAY
HIGH TIDE 2.0 FEET AT 6:54 PM TUESDAY
LOW TIDE 0.4 FEET AT 1:04 AM WEDNESDAY
HIGH TIDE 2.2 FEET AT 7:21 AM WEDNESDAY
LOW TIDE 0.5 FEET AT 1:37 PM WEDNESDAY
HIGH TIDE 2.1 FEET AT 7:46 PM 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. RIP CURRENTS
WILL BE LIFE THREATENING. IF CAUGHT IN A RIP CURRENT, SWIM PARALLEL
TO THE BEACH RATHER THAN AGAINST THE CURRENT.
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