820
FZPQ50 PGUM 011936
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
536 AM CHST WED SEP 2 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG WEST-FACING
REEFS FOR THE NEXT FEW DAYS, POTENTIALLY INCLUDING NORTH AND SOUTH-
FACING REEFS BY TONIGHT AS WINDS START TO PICK UP. THE RISK
MAY REACH HIGH ALONG WEST-FACING REEFS AS EARLY AS TONIGHT AS A
WEST SWELL BUILDS IN. THERE WILL BE A MODERATE RISK OF LIGHTNING FOR
GUAM THROUGH AT LEAST THURSDAY NIGHT.
GUZ001-MPZ001>003-021045-
GUAM-ROTA-TINIAN-SAIPAN-
536 AM CHST WED SEP 2 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM WEDNESDAY
THROUGH 600 PM THURSDAY
TODAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 4 FEET.
EAST FACING REEFS............2 TO 3 FEET.
SOUTH FACING REEFS............3 TO 4 FEET.
WEST FACING REEFS............6 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WATER TEMPERATURE
PAGO BAY BUOY..........84 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............2 TO 3 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 6 FEET.
PRIMARY PERIOD...............9 SECONDS.
WINDS...............WEST AT 10 TO 15 MPH.
THURSDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............1 TO 3 FEET.
SOUTH FACING REEFS............4 TO 6 FEET.
WEST FACING REEFS............7 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 7 FEET.
PRIMARY PERIOD...............9 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............SOUTHWEST AT 10 TO 20 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
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
HIGH TIDE 2.4 FEET AT 10:31 PM WEDNESDAY
LOW TIDE 0.2 FEET AT 5:43 AM THURSDAY
HIGH TIDE 2.1 FEET AT 12:39 PM THURSDAY
LOW TIDE 1.6 FEET AT 5:44 PM THURSDAY
AT ROTA ISLAND...
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
HIGH TIDE 2.3 FEET AT 10:28 PM WEDNESDAY
LOW TIDE 0.2 FEET AT 5:37 AM THURSDAY
HIGH TIDE 2.0 FEET AT 12:36 PM THURSDAY
LOW TIDE 1.5 FEET AT 5:38 PM THURSDAY
AT TINIAN ISLAND...
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
HIGH TIDE 1.8 FEET AT 10:29 PM WEDNESDAY
LOW TIDE 0.1 FEET AT 5:20 AM THURSDAY
HIGH TIDE 1.6 FEET AT 12:37 PM THURSDAY
LOW TIDE 0.5 FEET AT 5:21 PM THURSDAY
AT TANAPAG HARBOR, SAIPAN...
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
HIGH TIDE 2.1 FEET AT 10:42 PM WEDNESDAY
LOW TIDE 0.1 FEET AT 5:58 AM THURSDAY
HIGH TIDE 1.8 FEET AT 1:05 PM THURSDAY
LOW TIDE 1.4 FEET AT 5:47 PM THURSDAY
* 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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