411
FZPQ50 PGUM 190748
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
548 PM CHST SUN JUL 19 2026
DISCUSSION
A LOW RISK OF RIP CURRENTS IS EXPECTED TO CONTINUE ALONG ALL REEFS
FOR THE NEXT FEW DAYS. BY THE END OF THE WEEK, THE RIP RISK MAY
INCREASE ONCE AGAIN TO MODERATE DUE TO AN INCREASE IN SOUTHWEST
MONSOON SWELL.
GUZ001-MPZ001>003-192300-
GUAM-ROTA-TINIAN-SAIPAN-
548 PM CHST SUN JUL 19 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM SUNDAY
THROUGH 600 AM TUESDAY
TONIGHT
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............3 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT AROUND 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........86 DEGREES.
WINDS...............SOUTH TO SOUTHEAST WINDS AROUND 5 MPH.
MONDAY
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............3 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT AROUND 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
MAX HEAT INDEX.........AROUND 100.
WINDS...............SOUTHEAST AT 5 TO 10 MPH.
MONDAY NIGHT
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............3 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT AROUND 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WINDS...............SOUTHEAST AT AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 0.6 FEET AT 5:25 PM SUNDAY
HIGH TIDE 2.6 FEET AT 12:04 AM MONDAY
LOW TIDE 1.1 FEET AT 6:33 AM MONDAY
HIGH TIDE 2.1 FEET AT 12:00 PM MONDAY
LOW TIDE 0.9 FEET AT 6:06 PM MONDAY
HIGH TIDE 2.5 FEET AT 12:35 AM TUESDAY
LOW TIDE 0.9 FEET AT 7:29 AM TUESDAY
AT ROTA ISLAND...
LOW TIDE 0.5 FEET AT 5:19 PM SUNDAY
HIGH TIDE 2.4 FEET AT 12:01 AM MONDAY
LOW TIDE 1.0 FEET AT 6:27 AM MONDAY
HIGH TIDE 2.0 FEET AT 11:57 AM MONDAY
LOW TIDE 0.9 FEET AT 6:00 PM MONDAY
HIGH TIDE 2.4 FEET AT 12:32 AM TUESDAY
LOW TIDE 0.8 FEET AT 7:23 AM TUESDAY
AT TINIAN ISLAND...
LOW TIDE 0.2 FEET AT 5:02 PM SUNDAY
HIGH TIDE 1.9 FEET AT 12:02 AM MONDAY
LOW TIDE 0.3 FEET AT 6:10 AM MONDAY
HIGH TIDE 1.5 FEET AT 11:58 AM MONDAY
LOW TIDE 0.3 FEET AT 5:43 PM MONDAY
HIGH TIDE 1.9 FEET AT 12:33 AM TUESDAY
LOW TIDE 0.3 FEET AT 7:06 AM TUESDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 0.3 FEET AT 5:33 PM SUNDAY
HIGH TIDE 2.3 FEET AT 12:25 AM MONDAY
LOW TIDE 0.8 FEET AT 6:56 AM MONDAY
HIGH TIDE 1.6 FEET AT 12:22 PM MONDAY
LOW TIDE 0.7 FEET AT 6:13 PM MONDAY
HIGH TIDE 2.2 FEET AT 12:52 AM TUESDAY
LOW TIDE 0.6 FEET AT 7:50 AM TUESDAY
* 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page