169
FZPQ50 PGUM 250617
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
417 PM CHST FRI SEP 25 2026
DISCUSSION
THE RISK OF RIP CURRENTS IS CURRENTLY LOW ALONG ALL REEFS OF THE
MARIANAS AND IS EXPECTED TO STAY THAT THROUGH AT LEAST TUESDAY. ONLY
A VERY SMALL SOUTHWEST SWELL AND EAST-NORTHEAST SWELL REMAINS BEFORE
THE SURF MAY START TO INCREASE WEDNESDAY. THERE WILL BE A MODERATE
RISK OF LIGHTNING IN THE AFTERNOON FOR THE NEXT THREE DAYS DUE TO
ISLAND CONVECTION.
GUZ001-MPZ001>003-252130-
GUAM-ROTA-TINIAN-SAIPAN-
417 PM CHST FRI SEP 25 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM FRIDAY
THROUGH 600 AM SUNDAY
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 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT AROUND 2 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
WATER TEMPERATURE
PAGO BUOY.......... 85 DEGREES.
WINDS...............LIGHT AND VARIABLE.
SATURDAY
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 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT AROUND 2 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
MAX HEAT INDEX.........AROUND 104.
WINDS...............LIGHT AND VARIABLE.
SATURDAY 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 3 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT AROUND 2 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT AROUND 2 FEET.
SECONDARY PERIOD.............8 SECONDS.
WINDS...............LIGHT AND VARIABLE.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.4 FEET AT 7:06 PM FRIDAY
LOW TIDE 0.8 FEET AT 1:08 AM SATURDAY
HIGH TIDE 2.3 FEET AT 6:58 AM SATURDAY
LOW TIDE 0.4 FEET AT 1:15 PM SATURDAY
HIGH TIDE 2.4 FEET AT 7:26 PM SATURDAY
LOW TIDE 0.6 FEET AT 1:41 AM SUNDAY
HIGH TIDE 2.4 FEET AT 7:44 AM SUNDAY
AT ROTA ISLAND...
HIGH TIDE 2.2 FEET AT 7:03 PM FRIDAY
LOW TIDE 0.8 FEET AT 1:02 AM SATURDAY
HIGH TIDE 2.2 FEET AT 6:55 AM SATURDAY
LOW TIDE 0.4 FEET AT 1:09 PM SATURDAY
HIGH TIDE 2.3 FEET AT 7:23 PM SATURDAY
LOW TIDE 0.5 FEET AT 1:35 AM SUNDAY
HIGH TIDE 2.3 FEET AT 7:41 AM SUNDAY
AT TINIAN ISLAND...
HIGH TIDE 1.8 FEET AT 7:04 PM FRIDAY
LOW TIDE 0.3 FEET AT 12:45 AM SATURDAY
HIGH TIDE 1.7 FEET AT 6:56 AM SATURDAY
LOW TIDE 0.1 FEET AT 12:52 PM SATURDAY
HIGH TIDE 1.8 FEET AT 7:24 PM SATURDAY
LOW TIDE 0.2 FEET AT 1:18 AM SUNDAY
HIGH TIDE 1.8 FEET AT 7:42 AM SUNDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.0 FEET AT 7:20 PM FRIDAY
LOW TIDE 0.8 FEET AT 1:07 AM SATURDAY
HIGH TIDE 2.0 FEET AT 7:05 AM SATURDAY
LOW TIDE 0.4 FEET AT 1:20 PM SATURDAY
HIGH TIDE 2.1 FEET AT 7:41 PM SATURDAY
LOW TIDE 0.6 FEET AT 1:46 AM SUNDAY
HIGH TIDE 2.1 FEET AT 7:57 AM 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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