430
FZPQ50 PGUM 220628
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
428 PM CHST TUE SEP 22 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG
NORTH AND EAST FACING REEFS OF THE MARIANAS THROUGH AT LEAST
THURSDAY. A MODERATE RISK OF LIGHTNING WILL CONTINUE THROUGH THE
WEEKEND.
GUZ001-MPZ001>003-222200-
GUAM-ROTA-TINIAN-SAIPAN-
428 PM CHST TUE SEP 22 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM TUESDAY
THROUGH 600 AM THURSDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 4 TO 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
PAGO BUOY..........85 DEGREES.
WINDS...............SOUTH AT 10 TO 15 MPH.
WEDNESDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 4 TO 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 100.
WINDS...............SOUTH AT 10 TO 15 MPH.
WEDNESDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 3 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.1 FEET AT 6:00 PM TUESDAY
LOW TIDE 1.4 FEET AT 11:28 PM TUESDAY
HIGH TIDE 2.0 FEET AT 4:24 AM WEDNESDAY
LOW TIDE 0.2 FEET AT 11:19 AM WEDNESDAY
HIGH TIDE 2.2 FEET AT 6:24 PM WEDNESDAY
LOW TIDE 1.2 FEET AT 12:03 AM THURSDAY
AT ROTA ISLAND...
HIGH TIDE 2.0 FEET AT 5:57 PM TUESDAY
LOW TIDE 1.3 FEET AT 11:22 PM TUESDAY
HIGH TIDE 1.9 FEET AT 4:21 AM WEDNESDAY
LOW TIDE 0.2 FEET AT 11:13 AM WEDNESDAY
HIGH TIDE 2.1 FEET AT 6:21 PM WEDNESDAY
LOW TIDE 1.2 FEET AT 11:57 PM WEDNESDAY
AT TINIAN ISLAND...
HIGH TIDE 1.6 FEET AT 5:58 PM TUESDAY
LOW TIDE 0.5 FEET AT 11:05 PM TUESDAY
HIGH TIDE 1.5 FEET AT 4:22 AM WEDNESDAY
LOW TIDE 0.1 FEET AT 10:56 AM WEDNESDAY
HIGH TIDE 1.6 FEET AT 6:22 PM WEDNESDAY
LOW TIDE 0.4 FEET AT 11:40 PM WEDNESDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 1.9 FEET AT 6:15 PM TUESDAY
LOW TIDE 1.4 FEET AT 11:15 PM TUESDAY
HIGH TIDE 1.8 FEET AT 4:23 AM WEDNESDAY
LOW TIDE 0.2 FEET AT 11:20 AM WEDNESDAY
HIGH TIDE 2.0 FEET AT 6:37 PM WEDNESDAY
LOW TIDE 1.2 FEET AT 11:50 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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