800
FZPQ50 PGUM 280700
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
500 PM CHST THU MAY 28 2026
DISCUSSION
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG ALL
REEFS FOR AT LEAST THE NEXT COUPLE DAYS AS A SOUTHWEST SWELL BUILDS
INTO THE REGION AND MIXES WITH THE ONGOING TRADE SWELL AND LINGERING
NORTHEAST SWELL. EXPOSED SOUTH FACING REEFS WILL BE PARTICULARILY
ELEVATED AND CLOSE TO REACHING HAZARDOUS CRITERIA. THERE WILL ALSO
BE A SLIGHT RISK OF LIGHTNING THROUGH SATURDAY.
GUZ001-MPZ001>003-282200-
GUAM-ROTA-TINIAN-SAIPAN-
500 PM CHST THU MAY 28 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............5 TO 7 FEET.
EAST FACING REEFS............4 TO 6 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...............10 SECONDS.
SECONDARY SWELL..............EAST AT 3 TO 4 FEET.
SECONDARY PERIOD.............9 SECONDS.
TERTIARY SWELL...............NORTHEAST 2 TO 3 FEET.
TERTIARY PERIOD..............11 SECONDS.
WATER TEMPERATURE
IPAN BUOY.......... 83 DEGREES.
WINDS...............SOUTHEAST AT 10 TO 15 MPH.
FRIDAY
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............5 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT 4 TO 6 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............EAST AT 3 TO 4 FEET.
SECONDARY PERIOD.............10 SECONDS.
TERTIARY SWELL...............NORTHEAST 1 TO 2 FEET.
TERTIARY PERIOD..............11 SECONDS.
MAX HEAT INDEX.........AROUND 97.
WINDS...............SOUTHEAST AT 10 TO 15 MPH.
FRIDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............4 TO 6 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............5 TO 7 FEET.
WEST FACING REEFS............5 TO 7 FEET.
SWELL/PERIOD
PRIMARY SWELL................SOUTHWEST AT 4 TO 5 FEET.
PRIMARY PERIOD...............9 SECONDS.
SECONDARY SWELL..............EAST AT 3 TO 4 FEET.
SECONDARY PERIOD.............10 SECONDS.
TERTIARY SWELL...............NORTHEAST 1 TO 2 FEET.
TERTIARY PERIOD..............11 SECONDS.
WINDS...............SOUTHEAST AT 10 TO 15 MPH.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
HIGH TIDE 2.2 FEET AT 7:05 PM THURSDAY
LOW TIDE 1.6 FEET AT 12:03 AM FRIDAY
HIGH TIDE 2.4 FEET AT 5:25 AM FRIDAY
LOW TIDE 0.1 FEET AT 12:43 PM FRIDAY
HIGH TIDE 2.3 FEET AT 7:53 PM FRIDAY
LOW TIDE 1.7 FEET AT 12:55 AM SATURDAY
HIGH TIDE 2.4 FEET AT 5:52 AM SATURDAY
AT ROTA ISLAND...
HIGH TIDE 2.1 FEET AT 7:02 PM THURSDAY
LOW TIDE 1.5 FEET AT 11:57 PM THURSDAY
HIGH TIDE 2.3 FEET AT 5:22 AM FRIDAY
LOW TIDE 0.1 FEET AT 12:37 PM FRIDAY
HIGH TIDE 2.2 FEET AT 7:50 PM FRIDAY
LOW TIDE 1.6 FEET AT 12:49 AM SATURDAY
HIGH TIDE 2.3 FEET AT 5:49 AM SATURDAY
AT TINIAN ISLAND...
HIGH TIDE 1.6 FEET AT 7:03 PM THURSDAY
LOW TIDE 0.5 FEET AT 11:40 PM THURSDAY
HIGH TIDE 1.8 FEET AT 5:23 AM FRIDAY
LOW TIDE 0.0 FEET AT 12:20 PM FRIDAY
HIGH TIDE 1.7 FEET AT 7:51 PM FRIDAY
LOW TIDE 0.6 FEET AT 12:32 AM SATURDAY
HIGH TIDE 1.8 FEET AT 5:50 AM SATURDAY
AT TANAPAG HARBOR, SAIPAN...
HIGH TIDE 1.8 FEET AT 7:27 PM THURSDAY
LOW TIDE 1.5 FEET AT 11:35 PM THURSDAY
HIGH TIDE 2.1 FEET AT 5:16 AM FRIDAY
LOW TIDE -0.1 FEET AT 12:44 PM FRIDAY
HIGH TIDE 2.0 FEET AT 8:20 PM FRIDAY
LOW TIDE 1.6 FEET AT 12:21 AM SATURDAY
HIGH TIDE 2.1 FEET AT 5:37 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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