773
FZPQ50 PGUM 111923
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
523 AM CHST MON OCT 12 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG NORTH AND EAST
FACING REEFS THROUGH AT LEAST TONIGHT. SWELLS CONSIST OF A DOMINANT
NORTH SWELL FROM DISTANT TYPHOON KOGUMA AND A SMALLER NORTHEAST
SWELL. SURF IS EXPECTED TO INCREASE SOMETIME FRIDAY AS THE EAST OR
NORTHEAST SWELL INCREASES AHEAD OF INVEST 96W.
GUZ001-MPZ001>003-121030-
GUAM-ROTA-TINIAN-SAIPAN-
523 AM CHST MON OCT 12 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM MONDAY
THROUGH 600 PM TUESDAY
TODAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 6 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT AROUND 3 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............11 SECONDS.
WATER TEMPERATURE
PAGO BUOY..........84 DEGREES.
MAX HEAT INDEX.........AROUND 100.
WINDS...............LIGHT AND VARIABLE.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 6 FEET.
EAST FACING REEFS............4 TO 5 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT AROUND 3 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............LIGHT AND VARIABLE.
TUESDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 5 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT AROUND 2 TO 3 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............LIGHT AND VARIABLE.
MAX HEAT INDEX.........AROUND 100.
WINDS...............LIGHT AND VARIABLE.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.3 FEET AT 8:55 AM MONDAY
LOW TIDE 1.1 FEET AT 2:39 PM MONDAY
HIGH TIDE 2.3 FEET AT 7:57 PM MONDAY
LOW TIDE -0.1 FEET AT 2:55 AM TUESDAY
HIGH TIDE 2.2 FEET AT 9:42 AM TUESDAY
LOW TIDE 1.3 FEET AT 3:17 PM TUESDAY
HIGH TIDE 2.2 FEET AT 8:19 PM TUESDAY
AT ROTA ISLAND...
HIGH TIDE 2.1 FEET AT 8:52 AM MONDAY
LOW TIDE 1.1 FEET AT 2:33 PM MONDAY
HIGH TIDE 2.1 FEET AT 7:54 PM MONDAY
LOW TIDE -0.1 FEET AT 2:49 AM TUESDAY
HIGH TIDE 2.1 FEET AT 9:39 AM TUESDAY
LOW TIDE 1.2 FEET AT 3:11 PM TUESDAY
HIGH TIDE 2.0 FEET AT 8:16 PM TUESDAY
AT TINIAN ISLAND...
HIGH TIDE 1.7 FEET AT 8:53 AM MONDAY
LOW TIDE 0.4 FEET AT 2:16 PM MONDAY
HIGH TIDE 1.7 FEET AT 7:55 PM MONDAY
LOW TIDE 0.0 FEET AT 2:32 AM TUESDAY
HIGH TIDE 1.6 FEET AT 9:40 AM TUESDAY
LOW TIDE 0.4 FEET AT 2:54 PM TUESDAY
HIGH TIDE 1.6 FEET AT 8:17 PM TUESDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.1 FEET AT 9:14 AM MONDAY
LOW TIDE 1.2 FEET AT 2:49 PM MONDAY
HIGH TIDE 2.0 FEET AT 8:07 PM MONDAY
LOW TIDE 0.0 FEET AT 3:04 AM TUESDAY
HIGH TIDE 2.1 FEET AT 10:05 AM TUESDAY
LOW TIDE 1.3 FEET AT 3:26 PM TUESDAY
HIGH TIDE 2.0 FEET AT 8:27 PM TUESDAY
* 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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