000
FZPQ50 PGUM 101929
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
529 AM CHST SAT JUL 11 2026
DISCUSSION
THERE WILL BE A HIGH RISK OF RIP CURRENTS THROUGH AT
LEAST TONIGHT, AND A MODERATE RISK OF LIGHTNING THROUGH THE MIDDLE
OF NEXT WEEK.
GUZ001-MPZ001>003-111030-
GUAM-ROTA-TINIAN-SAIPAN-
529 AM CHST SAT JUL 11 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 AM CHST SUNDAY ALONG SOUTH,
WEST AND NORTH FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH LATE TONIGHT ALONG SOUTH, WEST
AND NORTH FACING REEFS...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM SATURDAY
THROUGH 600 PM SUNDAY
TODAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............8 TO 10 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............8 TO 10 FEET.
WEST FACING REEFS............8 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 TO 8 FEET.
PRIMARY PERIOD...............11 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........83 DEGREES.
MAX HEAT INDEX.........AROUND 101.
WINDS...............NORTHEAST AT 10 TO 15 MPH.
TONIGHT
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............8 TO 10 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............4 TO 6 FEET.
WEST FACING REEFS............8 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 TO 8 FEET.
PRIMARY PERIOD...............11 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 3 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............EAST AT 10 TO 15 MPH.
SUNDAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............7 TO 9 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............7 TO 9 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHWEST AT 6 TO 8 FEET.
PRIMARY PERIOD...............10 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 3 FEET.
SECONDARY PERIOD.............9 SECONDS.
MAX HEAT INDEX.........AROUND 103.
WINDS...............EAST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE -0.1 FEET AT 10:47 AM SATURDAY
HIGH TIDE 2.4 FEET AT 6:25 PM SATURDAY
LOW TIDE 1.9 FEET AT 10:47 PM SATURDAY
HIGH TIDE 2.7 FEET AT 4:00 AM SUNDAY
LOW TIDE -0.4 FEET AT 11:43 AM SUNDAY
HIGH TIDE 2.6 FEET AT 7:22 PM SUNDAY
LOW TIDE 2.0 FEET AT 11:58 PM SUNDAY
AT ROTA ISLAND...
LOW TIDE -0.1 FEET AT 10:41 AM SATURDAY
HIGH TIDE 2.3 FEET AT 6:22 PM SATURDAY
LOW TIDE 1.8 FEET AT 10:41 PM SATURDAY
HIGH TIDE 2.5 FEET AT 3:57 AM SUNDAY
LOW TIDE -0.4 FEET AT 11:37 AM SUNDAY
HIGH TIDE 2.4 FEET AT 7:19 PM SUNDAY
LOW TIDE 1.9 FEET AT 11:52 PM SUNDAY
AT TINIAN ISLAND...
LOW TIDE 0.0 FEET AT 10:24 AM SATURDAY
HIGH TIDE 1.8 FEET AT 6:23 PM SATURDAY
LOW TIDE 0.6 FEET AT 10:24 PM SATURDAY
HIGH TIDE 2.0 FEET AT 3:58 AM SUNDAY
LOW TIDE -0.1 FEET AT 11:20 AM SUNDAY
HIGH TIDE 1.9 FEET AT 7:20 PM SUNDAY
LOW TIDE 0.7 FEET AT 11:35 PM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE -0.4 FEET AT 10:53 AM SATURDAY
HIGH TIDE 2.0 FEET AT 6:52 PM SATURDAY
LOW TIDE 1.7 FEET AT 10:30 PM SATURDAY
HIGH TIDE 2.4 FEET AT 3:40 AM SUNDAY
LOW TIDE -0.6 FEET AT 11:45 AM SUNDAY
HIGH TIDE 2.2 FEET AT 7:50 PM SUNDAY
LOW TIDE 1.9 FEET AT 11:38 PM SUNDAY
* 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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