834  
FZPQ50 PGUM 301820  
SRFGUM  
 
SURF ZONE FORECAST FOR THE MARIANA ISLANDS  
NATIONAL WEATHER SERVICE TIYAN GU  
420 AM CHST WED JUL 1 2026  
   
DISCUSSION
 
THERE WILL BE A MODERATE RISK OF RIP CURRENTS ALONG EAST  
FACING REEFS THROUGH FRIDAY NIGHT. SATURDAY WILL SEE A MODERATE RISK  
OF LIGHTNING BEGIN AND A RADICAL INCREASE IN RIP CURRENTS AND SURF  
HEIGHTS.  
 

 
 
GUZ001-MPZ001>003-010930-  
GUAM-ROTA-TINIAN-SAIPAN-  
420 AM CHST WED JUL 1 2026  
 
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............1 TO 3 FEET.  
EAST FACING REEFS............3 TO 5 FEET.  
SOUTH FACING REEFS............1 TO 3 FEET.  
WEST FACING REEFS............AROUND 1 FOOT.  
SWELL/PERIOD  
PRIMARY SWELL................EAST AT AROUND 3 FEET.  
PRIMARY PERIOD...............8 SECONDS.  
WATER TEMPERATURE  
TANAPAG BUOY..........85 DEGREES.  
MAX HEAT INDEX.........AROUND 101.  
WINDS...............EAST AT 10 TO 15 MPH.  
   
TONIGHT
 
 
RIP CURRENT RISK.....MODERATE *.  
SURF HEIGHT  
NORTH FACING REEFS............1 TO 3 FEET.  
EAST FACING REEFS............3 TO 5 FEET.  
SOUTH FACING REEFS............1 TO 3 FEET.  
WEST FACING REEFS............AROUND 1 FOOT.  
SWELL/PERIOD  
PRIMARY SWELL................EAST AT AROUND 3 FEET.  
PRIMARY PERIOD...............8 SECONDS.  
WINDS...............EAST AT AROUND 10 MPH.  
   
THURSDAY
 
 
RIP CURRENT RISK.....MODERATE *.  
SURF HEIGHT  
NORTH FACING REEFS............1 TO 3 FEET.  
EAST FACING REEFS............3 TO 5 FEET.  
SOUTH FACING REEFS............1 TO 3 FEET.  
WEST FACING REEFS............AROUND 1 FOOT.  
SWELL/PERIOD  
PRIMARY SWELL................EAST AT AROUND 3 FEET.  
PRIMARY PERIOD...............8 SECONDS.  
MAX HEAT INDEX.........AROUND 100.  
WINDS...............NORTHEAST AT AROUND 10 MPH.  
 
TIDE INFORMATION FOR THE NEXT 36 HOURS...  
 
AT APRA HARBOR, GUAM...  
HIGH TIDE 2.4 FEET AT 7:12 AM WEDNESDAY  
LOW TIDE -0.1 FEET AT 2:41 PM WEDNESDAY  
HIGH TIDE 2.4 FEET AT 10:06 PM WEDNESDAY  
LOW TIDE 1.8 FEET AT 3:19 AM THURSDAY  
HIGH TIDE 2.4 FEET AT 7:50 AM THURSDAY  
LOW TIDE -0.1 FEET AT 3:17 PM THURSDAY  
HIGH TIDE 2.5 FEET AT 10:38 PM THURSDAY  
 
AT ROTA ISLAND...  
HIGH TIDE 2.3 FEET AT 7:09 AM WEDNESDAY  
LOW TIDE -0.1 FEET AT 2:35 PM WEDNESDAY  
HIGH TIDE 2.3 FEET AT 10:03 PM WEDNESDAY  
LOW TIDE 1.7 FEET AT 3:13 AM THURSDAY  
HIGH TIDE 2.3 FEET AT 7:47 AM THURSDAY  
LOW TIDE -0.1 FEET AT 3:11 PM THURSDAY  
HIGH TIDE 2.3 FEET AT 10:35 PM THURSDAY  
 
AT TINIAN ISLAND...  
HIGH TIDE 1.8 FEET AT 7:10 AM WEDNESDAY  
LOW TIDE 0.0 FEET AT 2:18 PM WEDNESDAY  
HIGH TIDE 1.8 FEET AT 10:04 PM WEDNESDAY  
LOW TIDE 0.6 FEET AT 2:56 AM THURSDAY  
HIGH TIDE 1.8 FEET AT 7:48 AM THURSDAY  
LOW TIDE 0.0 FEET AT 2:54 PM THURSDAY  
HIGH TIDE 1.8 FEET AT 10:36 PM THURSDAY  
 
AT TANAPAG HARBOR, SAIPAN...  
HIGH TIDE 2.0 FEET AT 6:46 AM WEDNESDAY  
LOW TIDE -0.3 FEET AT 2:51 PM WEDNESDAY  
HIGH TIDE 2.1 FEET AT 10:46 PM WEDNESDAY  
LOW TIDE 1.8 FEET AT 3:33 AM THURSDAY  
HIGH TIDE 2.0 FEET AT 7:32 AM THURSDAY  
LOW TIDE -0.3 FEET AT 3:26 PM THURSDAY  
HIGH TIDE 2.2 FEET AT 11:17 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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