752
FZPQ50 PGUM 221844
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
444 AM CHST SUN AUG 23 2026
DISCUSSION
THERE WILL BE A HIGH RISK OF RIP CURRENTS THROUGH AT
LEAST THIS AFTERNOON. THERE WILL ALSO BE A MODERATE RISK OF LIGHTNING
THROUGH THURSDAY.
GUZ001-MPZ001>003-230945-
GUAM-ROTA-TINIAN-SAIPAN-
444 AM CHST SUN AUG 23 2026
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 PM CHST THIS AFTERNOON ALONG
NORTH AND WEST FACING REEFS...
...HIGH RISK OF RIP CURRENTS UNTIL 4 PM CHST THIS AFTERNOON ALONG
NORTH AND WEST FACING REEFS...
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM SUNDAY
THROUGH 600 PM MONDAY
TODAY
RIP CURRENT RISK.....HIGH. POUNDING SURF WILL PRODUCE LIFE
THREATENING RIP CURRENTS AT REEFS AND BEACHES.
SURF HEIGHT
NORTH FACING REEFS............7 TO 10 FEET.
EAST FACING REEFS............5 TO 7 FEET.
SOUTH FACING REEFS............6 TO 8 FEET.
WEST FACING REEFS............7 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 6 TO 7 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT AROUND 6 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
REAL TIME OCEAN FORECAST SYSTEM...87 DEGREES.
MAX HEAT INDEX.........AROUND 104.
WINDS...............SOUTHWEST AT 15 TO 20 MPH.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............5 TO 7 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............6 TO 8 FEET.
WEST FACING REEFS............6 TO 8 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT 4 TO 6 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTH AT AROUND 5 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............SOUTHWEST AT 10 TO 20 MPH.
MONDAY
RIP CURRENT RISK.....HIGH *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............6 TO 8 FEET.
WEST FACING REEFS............8 TO 10 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT 6 TO 8 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............NORTH AT AROUND 4 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 102.
WINDS...............SOUTHWEST AT 10 TO 20 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 0.3 FEET AT 10:21 AM SUNDAY
HIGH TIDE 2.1 FEET AT 6:18 PM SUNDAY
LOW TIDE 1.7 FEET AT 11:12 PM SUNDAY
HIGH TIDE 2.1 FEET AT 3:37 AM MONDAY
LOW TIDE 0.2 FEET AT 11:14 AM MONDAY
HIGH TIDE 2.2 FEET AT 6:52 PM MONDAY
LOW TIDE 1.7 FEET AT 11:56 PM MONDAY
AT ROTA ISLAND...
LOW TIDE 0.2 FEET AT 10:15 AM SUNDAY
HIGH TIDE 2.0 FEET AT 6:15 PM SUNDAY
LOW TIDE 1.6 FEET AT 11:06 PM SUNDAY
HIGH TIDE 1.9 FEET AT 3:34 AM MONDAY
LOW TIDE 0.2 FEET AT 11:08 AM MONDAY
HIGH TIDE 2.1 FEET AT 6:49 PM MONDAY
LOW TIDE 1.6 FEET AT 11:50 PM MONDAY
AT TINIAN ISLAND...
LOW TIDE 0.1 FEET AT 9:58 AM SUNDAY
HIGH TIDE 1.6 FEET AT 6:16 PM SUNDAY
LOW TIDE 0.6 FEET AT 10:49 PM SUNDAY
HIGH TIDE 1.5 FEET AT 3:35 AM MONDAY
LOW TIDE 0.1 FEET AT 10:51 AM MONDAY
HIGH TIDE 1.6 FEET AT 6:50 PM MONDAY
LOW TIDE 0.5 FEET AT 11:33 PM MONDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 0.1 FEET AT 10:33 AM SUNDAY
HIGH TIDE 1.9 FEET AT 6:54 PM SUNDAY
LOW TIDE 1.7 FEET AT 10:40 PM SUNDAY
HIGH TIDE 1.9 FEET AT 3:06 AM MONDAY
LOW TIDE 0.1 FEET AT 11:19 AM MONDAY
HIGH TIDE 1.9 FEET AT 7:21 PM MONDAY
LOW TIDE 1.6 FEET AT 11:25 PM MONDAY
* 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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