242
FZPQ50 PGUM 271948
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
548 AM CHST FRI AUG 28 2026
DISCUSSION
A LOW RISK OF RIP CURRENTS IS EXPECTED TODAY, THEN INCREASES TO
MODERATE ALONG WEST AND NORTH FACING REEFS STARTING TONIGHT. A
MODERATE RISK OF LIGHTNING IS EXPECTED THROUGH THE MIDDLE OF NEXT
WEEK.
GUZ001-MPZ001>003-281000-
GUAM-ROTA-TINIAN-SAIPAN-
548 AM CHST FRI AUG 28 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM FRIDAY
THROUGH 600 PM SATURDAY
TODAY
RIP CURRENT RISK.....LOW *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 4 FEET.
EAST FACING REEFS............3 TO 4 FEET.
SOUTH FACING REEFS............1 TO 3 FEET.
WEST FACING REEFS............3 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT 2 TO 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............13 SECONDS.
TERTIARY SWELL...............NORTHWEST AT AROUND 2 FEET.
TERTIARY PERIOD..............10 SECONDS.
WATER TEMPERATURE
PAGO BUOY..........84 DEGREES.
MAX HEAT INDEX.........AROUND 100.
WINDS...............WEST AT 10 TO 15 MPH.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............3 TO 4 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............3 TO 5 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 2 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............12 SECONDS.
TERTIARY SWELL...............NORTHWEST AT AROUND 2 FEET.
TERTIARY PERIOD..............10 SECONDS.
WINDS...............NORTHWEST AT 10 TO 15 MPH.
SATURDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............3 TO 4 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............4 TO 5 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 3 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............NORTHEAST AT AROUND 2 FEET.
SECONDARY PERIOD.............11 SECONDS.
MAX HEAT INDEX.........AROUND 100.
WINDS...............WEST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.4 FEET AT 7:01 AM FRIDAY
LOW TIDE 0.2 FEET AT 1:50 PM FRIDAY
HIGH TIDE 2.4 FEET AT 8:26 PM FRIDAY
LOW TIDE 1.2 FEET AT 2:13 AM SATURDAY
HIGH TIDE 2.5 FEET AT 7:43 AM SATURDAY
LOW TIDE 0.3 FEET AT 2:23 PM SATURDAY
HIGH TIDE 2.5 FEET AT 8:47 PM SATURDAY
AT ROTA ISLAND...
HIGH TIDE 2.3 FEET AT 6:58 AM FRIDAY
LOW TIDE 0.1 FEET AT 1:44 PM FRIDAY
HIGH TIDE 2.3 FEET AT 8:23 PM FRIDAY
LOW TIDE 1.1 FEET AT 2:07 AM SATURDAY
HIGH TIDE 2.3 FEET AT 7:40 AM SATURDAY
LOW TIDE 0.3 FEET AT 2:17 PM SATURDAY
HIGH TIDE 2.3 FEET AT 8:44 PM SATURDAY
AT TINIAN ISLAND...
HIGH TIDE 1.8 FEET AT 6:59 AM FRIDAY
LOW TIDE 0.1 FEET AT 1:27 PM FRIDAY
HIGH TIDE 1.8 FEET AT 8:24 PM FRIDAY
LOW TIDE 0.4 FEET AT 1:50 AM SATURDAY
HIGH TIDE 1.8 FEET AT 7:41 AM SATURDAY
LOW TIDE 0.1 FEET AT 2:00 PM SATURDAY
HIGH TIDE 1.8 FEET AT 8:45 PM SATURDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.0 FEET AT 7:01 AM FRIDAY
LOW TIDE 0.0 FEET AT 1:59 PM FRIDAY
HIGH TIDE 2.1 FEET AT 8:50 PM FRIDAY
LOW TIDE 1.1 FEET AT 2:22 AM SATURDAY
HIGH TIDE 2.0 FEET AT 7:49 AM SATURDAY
LOW TIDE 0.1 FEET AT 2:33 PM SATURDAY
HIGH TIDE 2.1 FEET AT 9:11 PM SATURDAY
* 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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