840
FZPQ50 PGUM 280559
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
359 PM CHST MON SEP 28 2026
DISCUSSION
A LOW RISK OF RIP CURRENTS IS EXPECTED ALONG ALL REEFS OF
THE MARIANAS THROUGH AT LEAST WEDNESDAY, WHEN A MODERATE RIP CURRENT
RISK MAY DEVELOP ALONG WEST FACING REEFS. THERE IS SOME LIKELIHOOD FOR
HAZARDOUS SURF TO DEVELOP ALONG SOUTH, WEST AND NORTH FACING REEFS OF
THE MARIANAS IN THE SECOND HALF OF THE WEEK, HIGHLY DEPENDENT ON THE
DEVELOPMENT OF 93W AND ASSOCIATED SOUTHWESTERLY MONSOON SURGE.
A MODERATE RISK OF LIGHTNING IS EXPECTED BEGINNING WEDNESDAY, TO THEN
LAST THROUGH THE REST OF THE WEEK.
GUZ001-MPZ001>003-282000-
GUAM-ROTA-TINIAN-SAIPAN-
359 PM CHST MON SEP 28 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM MONDAY
THROUGH 600 AM TUESDAY
TONIGHT
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT AROUND 2 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTH AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
WATER TEMPERATURE
APRA HARBOR..........86 DEGREES.
WINDS...............LIGHT AND VARIABLE.
TUESDAY
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT AROUND 2 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTH AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............WEST AT AROUND 10 MPH.
TUESDAY NIGHT
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT AROUND 2 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTH AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
WINDS...............WEST AT 10 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.5 FEET AT 8:12 PM MONDAY
LOW TIDE 0.0 FEET AT 2:54 AM TUESDAY
HIGH TIDE 2.4 FEET AT 9:25 AM TUESDAY
LOW TIDE 1.1 FEET AT 3:11 PM TUESDAY
HIGH TIDE 2.4 FEET AT 8:39 PM TUESDAY
LOW TIDE -0.1 FEET AT 3:36 AM WEDNESDAY
AT ROTA ISLAND...
HIGH TIDE 2.3 FEET AT 8:09 PM MONDAY
LOW TIDE 0.0 FEET AT 2:48 AM TUESDAY
HIGH TIDE 2.3 FEET AT 9:22 AM TUESDAY
LOW TIDE 1.0 FEET AT 3:05 PM TUESDAY
HIGH TIDE 2.3 FEET AT 8:36 PM TUESDAY
LOW TIDE -0.1 FEET AT 3:30 AM WEDNESDAY
AT TINIAN ISLAND...
HIGH TIDE 1.8 FEET AT 8:10 PM MONDAY
LOW TIDE 0.0 FEET AT 2:31 AM TUESDAY
HIGH TIDE 1.8 FEET AT 9:23 AM TUESDAY
LOW TIDE 0.4 FEET AT 2:48 PM TUESDAY
HIGH TIDE 1.8 FEET AT 8:37 PM TUESDAY
LOW TIDE 0.0 FEET AT 3:13 AM WEDNESDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.1 FEET AT 8:24 PM MONDAY
LOW TIDE 0.1 FEET AT 3:03 AM TUESDAY
HIGH TIDE 2.1 FEET AT 9:46 AM TUESDAY
LOW TIDE 1.0 FEET AT 3:20 PM TUESDAY
HIGH TIDE 2.1 FEET AT 8:46 PM TUESDAY
LOW TIDE -0.1 FEET AT 3:44 AM 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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