330
FZPQ50 PGUM 311851
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
451 AM CHST SAT AUG 1 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG ALL
REEFS AND BEACHES OF THE MARIANAS THROUGH AT LEAST THE WEEKEND. THERE
WILL ALSO BE A MODERATE RISK OF LIGHTNING THE NEXT FEW DAYS.
GUZ001-MPZ001>003-011000-
GUAM-ROTA-TINIAN-SAIPAN-
451 AM CHST SAT AUG 1 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM SATURDAY
THROUGH 600 PM SUNDAY
TODAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............6 TO 8 FEET.
WEST FACING REEFS............4 TO 6 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHEAST AT 4 TO 5 FEET.
PRIMARY PERIOD...............12 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT AROUND 4 FEET.
SECONDARY PERIOD.............8 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........86 DEGREES.
MAX HEAT INDEX.........AROUND 101.
WINDS...............WEST AT 10 TO 15 MPH.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 TO 5 FEET.
PRIMARY PERIOD...............12 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 5 FEET.
SECONDARY PERIOD.............9 SECONDS.
WINDS...............WEST AT 10 TO 20 MPH.
SUNDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............6 TO 8 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 5 TO 6 FEET.
PRIMARY PERIOD...............12 SECONDS.
SECONDARY SWELL..............WEST AT AROUND 5 FEET.
SECONDARY PERIOD.............9 SECONDS.
MAX HEAT INDEX.........AROUND 103.
WINDS...............WEST AT 15 TO 20 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.5 FEET AT 8:27 AM SATURDAY
LOW TIDE 0.2 FEET AT 3:26 PM SATURDAY
HIGH TIDE 2.5 FEET AT 10:10 PM SATURDAY
LOW TIDE 1.4 FEET AT 4:03 AM SUNDAY
HIGH TIDE 2.4 FEET AT 9:13 AM SUNDAY
LOW TIDE 0.4 FEET AT 3:59 PM SUNDAY
HIGH TIDE 2.6 FEET AT 10:35 PM SUNDAY
AT ROTA ISLAND...
HIGH TIDE 2.3 FEET AT 8:24 AM SATURDAY
LOW TIDE 0.2 FEET AT 3:20 PM SATURDAY
HIGH TIDE 2.4 FEET AT 10:07 PM SATURDAY
LOW TIDE 1.3 FEET AT 3:57 AM SUNDAY
HIGH TIDE 2.3 FEET AT 9:10 AM SUNDAY
LOW TIDE 0.4 FEET AT 3:53 PM SUNDAY
HIGH TIDE 2.4 FEET AT 10:32 PM SUNDAY
AT TINIAN ISLAND...
HIGH TIDE 1.8 FEET AT 8:25 AM SATURDAY
LOW TIDE 0.1 FEET AT 3:03 PM SATURDAY
HIGH TIDE 1.9 FEET AT 10:08 PM SATURDAY
LOW TIDE 0.5 FEET AT 3:40 AM SUNDAY
HIGH TIDE 1.8 FEET AT 9:11 AM SUNDAY
LOW TIDE 0.1 FEET AT 3:36 PM SUNDAY
HIGH TIDE 1.9 FEET AT 10:33 PM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.0 FEET AT 8:28 AM SATURDAY
LOW TIDE -0.1 FEET AT 3:34 PM SATURDAY
HIGH TIDE 2.2 FEET AT 10:41 PM SATURDAY
LOW TIDE 1.2 FEET AT 4:18 AM SUNDAY
HIGH TIDE 1.9 FEET AT 9:16 AM SUNDAY
LOW TIDE 0.1 FEET AT 4:06 PM SUNDAY
HIGH TIDE 2.2 FEET AT 11:04 PM SUNDAY
* 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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