569
FZPQ50 PGUM 311928
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
528 AM CHST TUE SEP 1 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG EAST AND WEST-
FACING REEFS FOR THE NEXT FEW DAYS, POTENTIALLY INCLUDING NORTH AND
SOUTH-FACING REEFS AS EARLY AS WEDNESDAY. THE RISK MAY REACH HIGH
ALONG WEST-FACING REEFS STARTING ON WEDNESDAY AS A WEST SWELL BUILDS
IN. THERE WILL BE A MODERATE RISK OF LIGHTNING FOR GUAM THROUGH THE
REST OF THE WEEK.
GUZ001-MPZ001>003-011030-
GUAM-ROTA-TINIAN-SAIPAN-
528 AM CHST TUE SEP 1 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............3 TO 4 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............3 TO 4 FEET.
WEST FACING REEFS............5 TO 6 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 3 TO 4 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 3 FEET.
SECONDARY PERIOD.............10 SECONDS.
WATER TEMPERATURE
APRA HARBOR BUOY..........87 DEGREES.
MAX HEAT INDEX.........AROUND 101.
WINDS...............LIGHT AND VARIABLE.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............5 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 4 TO 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 3 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............LIGHT AND VARIABLE.
WEDNESDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............6 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 4 TO 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 3 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............LIGHT AND VARIABLE.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 0.6 FEET AT 4:06 AM TUESDAY
HIGH TIDE 2.3 FEET AT 10:13 AM TUESDAY
LOW TIDE 1.0 FEET AT 4:10 PM TUESDAY
HIGH TIDE 2.5 FEET AT 10:00 PM TUESDAY
LOW TIDE 0.4 FEET AT 4:52 AM WEDNESDAY
HIGH TIDE 2.2 FEET AT 11:18 AM WEDNESDAY
LOW TIDE 1.3 FEET AT 4:53 PM WEDNESDAY
AT ROTA ISLAND...
LOW TIDE 0.5 FEET AT 4:00 AM TUESDAY
HIGH TIDE 2.2 FEET AT 10:10 AM TUESDAY
LOW TIDE 0.9 FEET AT 4:04 PM TUESDAY
HIGH TIDE 2.3 FEET AT 9:57 PM TUESDAY
LOW TIDE 0.3 FEET AT 4:46 AM WEDNESDAY
HIGH TIDE 2.1 FEET AT 11:15 AM WEDNESDAY
LOW TIDE 1.2 FEET AT 4:47 PM WEDNESDAY
AT TINIAN ISLAND...
LOW TIDE 0.2 FEET AT 3:43 AM TUESDAY
HIGH TIDE 1.7 FEET AT 10:11 AM TUESDAY
LOW TIDE 0.3 FEET AT 3:47 PM TUESDAY
HIGH TIDE 1.8 FEET AT 9:58 PM TUESDAY
LOW TIDE 0.1 FEET AT 4:29 AM WEDNESDAY
HIGH TIDE 1.6 FEET AT 11:16 AM WEDNESDAY
LOW TIDE 0.4 FEET AT 4:30 PM WEDNESDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 0.5 FEET AT 4:17 AM TUESDAY
HIGH TIDE 1.9 FEET AT 10:32 AM TUESDAY
LOW TIDE 0.8 FEET AT 4:16 PM TUESDAY
HIGH TIDE 2.1 FEET AT 10:15 PM TUESDAY
LOW TIDE 0.3 FEET AT 5:04 AM WEDNESDAY
HIGH TIDE 1.9 FEET AT 11:45 AM WEDNESDAY
LOW TIDE 1.1 FEET AT 4:57 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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