582
FZPQ50 PGUM 160726
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
526 PM CHST THU JUL 16 2026
DISCUSSION
A MODERATE RISK OF RIP CURRENTS IS EXPECTED ALONG SOUTH
AND WEST FACING REEFS OF THE MARIANAS FOR AT LEAST THE NEXT DAY OR
SO. THE DOMINATE WESTERLY SWELL IS EXPECTED TO DIMINISH THROUGH THE
WEEKEND AND BECOMING THE SECONDARY SWELL TO THE TRADE SWELL EARLY
NEXT WEEK. A MODERATE RISK OF LIGHTNING THROUGH SUNDAY.
GUZ001-MPZ001>003-162300-
GUAM-ROTA-TINIAN-SAIPAN-
526 PM CHST THU JUL 16 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM THURSDAY
THROUGH 600 AM SATURDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............5 TO 6 FEET.
WEST FACING REEFS............5 TO 6 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT 3 TO 4 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY..........84 DEGREES.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
FRIDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 4 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............4 TO 6 FEET.
SWELL/PERIOD
PRIMARY SWELL................WEST AT 2 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
MAX HEAT INDEX.........AROUND 103.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
FRIDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............2 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 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............EAST AT AROUND 2 FEET.
SECONDARY PERIOD.............9 SECONDS.
WINDS...............SOUTHWEST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.7 FEET AT 10:19 PM THURSDAY
LOW TIDE 1.6 FEET AT 3:48 AM FRIDAY
HIGH TIDE 2.7 FEET AT 8:45 AM FRIDAY
LOW TIDE -0.2 FEET AT 4:00 PM FRIDAY
HIGH TIDE 2.7 FEET AT 10:57 PM FRIDAY4
LOW TIDE 1.4 FEET AT 4:42 AM SATURDAY
AT ROTA ISLAND...
HIGH TIDE 2.5 FEET AT 10:16 PM THURSDAY
LOW TIDE 1.5 FEET AT 3:42 AM FRIDAY
HIGH TIDE 2.5 FEET AT 8:42 AM FRIDAY
LOW TIDE -0.1 FEET AT 3:54 PM FRIDAY
HIGH TIDE 2.5 FEET AT 10:54 PM FRIDAY
LOW TIDE 1.4 FEET AT 4:36 AM SATURDAY
AT TINIAN ISLAND...
HIGH TIDE 2.0 FEET AT 10:17 PM THURSDAY
LOW TIDE 0.5 FEET AT 3:25 AM FRIDAY
HIGH TIDE 2.0 FEET AT 8:43 AM FRIDAY
LOW TIDE -0.1 FEET AT 3:37 PM FRIDAY
HIGH TIDE 2.0 FEET AT 10:55 PM FRIDAY
LOW TIDE 0.5 FEET AT 4:19 AM SATURDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.4 FEET AT 10:44 PM THURSDAY
LOW TIDE 1.4 FEET AT 4:06 AM FRIDAY
HIGH TIDE 2.2 FEET AT 8:51 AM FRIDAY
LOW TIDE -0.4 FEET AT 4:06 PM FRIDAY
HIGH TIDE 2.3 FEET AT 11:21 PM FRIDAY
LOW TIDE 1.2 FEET AT 5:03 AM 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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