452
FZPQ50 PGUM 091838
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
438 AM CHST WED SEP 10 2025
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG
NORTH FACING REEFS OF THE MARIANAS THROUGH THURSDAY NIGHT, WHICH
COULD THEN BECOME LOW ALONG ALL REEFS FOR THE WEEKEND. THERE WILL
ALSO BE A MODERATE RISK OF LIGHTNING THROUGH FRIDAY.
GUZ001-MPZ001>003-100945-
GUAM-ROTA-TINIAN-SAIPAN-
438 AM CHST WED SEP 10 2025
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 AM WEDNESDAY
THROUGH 600 PM THURSDAY
TODAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............2 TO 4 FEET.
SOUTH FACING REEFS............AROUND 1 FOOT.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 3 TO 5 FEET.
PRIMARY PERIOD...............8 SECONDS.
WATER TEMPERATURE
RITIDIAN BUOY..........86 DEGREES.
MAX HEAT INDEX.........AROUND 101.
WINDS...............EAST AT 15 TO 20 MPH.
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............2 TO 4 FEET.
WEST FACING REEFS............2 TO 4 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTHEAST AT 3 TO 5 FEET.
PRIMARY PERIOD...............8 SECONDS.
WINDS...............EAST AT 10 TO 15 MPH.
THURSDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............3 TO 5 FEET.
EAST FACING REEFS............1 TO 3 FEET.
SOUTH FACING REEFS............AROUND 1 FOOT.
WEST FACING REEFS............1 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................NORTH AT 3 TO 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............EAST AT AROUND 10 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.6 FEET AT 9:06 AM WEDNESDAY
LOW TIDE 0.7 FEET AT 3:19 PM WEDNESDAY
HIGH TIDE 2.6 FEET AT 9:13 PM WEDNESDAY
LOW TIDE 0.3 FEET AT 3:50 AM THURSDAY
HIGH TIDE 2.5 FEET AT 10:07 AM THURSDAY
LOW TIDE 1.0 FEET AT 4:02 PM THURSDAY
HIGH TIDE 2.6 FEET AT 9:42 PM THURSDAY
AT ROTA ISLAND...
HIGH TIDE 2.4 FEET AT 9:03 AM WEDNESDAY
LOW TIDE 0.6 FEET AT 3:13 PM WEDNESDAY
HIGH TIDE 2.4 FEET AT 9:10 PM WEDNESDAY
LOW TIDE 0.3 FEET AT 3:44 AM THURSDAY
HIGH TIDE 2.3 FEET AT 10:04 AM THURSDAY
LOW TIDE 0.9 FEET AT 3:56 PM THURSDAY
HIGH TIDE 2.4 FEET AT 9:39 PM THURSDAY
AT TINIAN ISLAND...
HIGH TIDE 1.5 FEET AT 8:36 AM WEDNESDAY
LOW TIDE 0.5 FEET AT 2:43 PM WEDNESDAY
HIGH TIDE 1.7 FEET AT 8:36 PM WEDNESDAY
LOW TIDE 0.1 FEET AT 3:30 AM THURSDAY
HIGH TIDE 1.5 FEET AT 9:50 AM THURSDAY
LOW TIDE 0.8 FEET AT 3:25 PM THURSDAY
HIGH TIDE 1.7 FEET AT 9:04 PM THURSDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 2.2 FEET AT 9:21 AM WEDNESDAY
LOW TIDE 0.5 FEET AT 3:29 PM WEDNESDAY
HIGH TIDE 2.2 FEET AT 9:27 PM WEDNESDAY
LOW TIDE 0.2 FEET AT 3:57 AM THURSDAY
HIGH TIDE 2.1 FEET AT 10:27 AM THURSDAY
LOW TIDE 0.9 FEET AT 4:10 PM THURSDAY
HIGH TIDE 2.2 FEET AT 9:52 PM THURSDAY
* 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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