813  
FZPN28 KNHC 100819  
OFFPZ8  
 
OFFSHORE WATERS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
119 AM PDT WED SEP 10 2025  
 
OFFSHORE WATERS FORECAST FOR THE E PACIFIC WITHIN 250 NM OF  
CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
 
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE AVERAGE  
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE  
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.  
 
PMZ101-102030-  
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,  
COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
119 AM PDT WED SEP 10 2025  
   
SYNOPSIS
 
MODERATE TO LOCALLY FRESH SE TO SW WINDS AND  
MODERATE SEAS IN SW SWELL WILL OCCUR SOUTH OF THE MONSOON TROUGH  
THIS WEEK. MODERATE NE GAP WINDS WILL PULSE IN THE GULF OF  
PAPAGAYO THU THROUGH FRI. LOOKING AHEAD, LONG PERIOD SW SWELL  
WILL LEAD TO ROUGH SEAS OVER THE SOUTH AMERICA WATERS THIS  
WEEKEND.  
 

 
 
PMZ111-102030-  
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL.  
PERIOD 16 SECONDS. WINDS AND SEAS HIGHER IN AND NEAR SCATTERED  
SHOWERS AND THUNDERSTORMS.   
TONIGHT
 
SW TO W WINDS 10 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 15 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.   
THU
 
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
14 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.   
THU NIGHT
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN SW  
SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.   
FRI
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN SW  
SWELL. PERIOD 14 SECONDS.    
FRI NIGHT
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN SW  
SWELL. PERIOD 14 SECONDS.    
SAT
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
SAT NIGHT
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN S  
TO SW SWELL. PERIOD 14 SECONDS.    
SUN
 
E WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD  
16 SECONDS.    
SUN NIGHT
 
SE WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 18 SECONDS.  
 

 
 
PMZ113-102030-  
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA  
AND PAPAGAYO-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
W TO NW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
16 SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.   
TONIGHT
 
NW WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
15 SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.   
THU
 
OFFSHORE GULF OF PAPAGAYO, NE TO E WINDS 10 TO 15 KT.  
ELSEWHERE, N TO NE WINDS 10 KT IN THE MORNING, BECOMING VARIABLE  
WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
14 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
THU NIGHT
 
N WINDS 10 KT. SEAS 3 TO 5 FT IN SW SWELL. PERIOD  
14 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
FRI
 
NE TO E WINDS 10 KT. SEAS 3 TO 5 FT IN SW SWELL. PERIOD  
14 SECONDS.   
FRI NIGHT
 
SE WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
14 SECONDS.    
SAT
 
SE WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
14 SECONDS.    
SAT NIGHT
 
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
14 SECONDS.    
SUN
 
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 16 SECONDS.    
SUN NIGHT
 
S WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 17 SECONDS.  
 

 
 
PMZ115-102030-  
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND W 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT IN S TO  
SW SWELL. PERIOD 16 SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.   
TONIGHT
 
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND W 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT IN S TO  
SW SWELL. PERIOD 15 SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.   
THU
 
NEAR THE AZUERO PENINSULA, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING W 10 KT IN THE AFTERNOON. ELSEWHERE, SW TO W WINDS 10  
TO 15 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD 14 SECONDS. SCATTERED  
SHOWERS AND ISOLATED THUNDERSTORMS.   
THU NIGHT
 
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND SW TO W 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT IN  
S TO SW SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
FRI
 
SW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD  
14 SECONDS.    
FRI NIGHT
 
SW TO W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
14 SECONDS.    
SAT
 
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
SAT NIGHT
 
SW TO W WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
SUN
 
SW WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
16 SECONDS.    
SUN NIGHT
 
SW TO W WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 18 SECONDS.  
 

 
 
PMZ117-102030-  
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
GULF OF PANAMA, VARIABLE WINDS LESS THAN 5 KT, BECOMING  
W TO NW 10 KT IN THE AFTERNOON. ELSEWHERE, SW TO W WINDS 10 TO  
15 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD 17 SECONDS. ISOLATED  
SHOWERS AND THUNDERSTORMS.   
TONIGHT
 
SW TO W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN SW  
SWELL. PERIOD 16 SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.   
THU
 
SW TO W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
15 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
THU NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN SW SWELL.  
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
FRI
 
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 14 SECONDS.    
FRI NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 15 SECONDS.    
SAT
 
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD  
14 SECONDS.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 14 SECONDS.    
SUN
 
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL. PERIOD  
16 SECONDS.    
SUN NIGHT
 
SW TO W WINDS 10 KT. SEAS 6 TO 8 FT IN SW SWELL.  
PERIOD 18 SECONDS.  
 

 
 
PMZ119-102030-  
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.    
TONIGHT
 
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
15 SECONDS.    
THU
 
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
14 SECONDS.    
THU NIGHT
 
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
15 SECONDS.    
FRI
 
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD  
15 SECONDS.    
FRI NIGHT
 
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW  
SWELL. PERIOD 14 SECONDS.    
SAT
 
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 13 SECONDS.    
SAT NIGHT
 
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW  
SWELL. PERIOD 16 SECONDS.    
SUN
 
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 18 SECONDS.    
SUN NIGHT
 
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW  
SWELL. PERIOD 16 SECONDS.  
 

 
 
PMZ121-102030-  
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
15 SECONDS.    
TONIGHT
 
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD  
14 SECONDS.    
THU
 
S WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
15 SECONDS.    
THU NIGHT
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 15 SECONDS.    
FRI
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD  
14 SECONDS.    
FRI NIGHT
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 14 SECONDS.    
SAT
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
SAT NIGHT
 
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO  
SW SWELL. PERIOD 16 SECONDS.    
SUN
 
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 17 SECONDS.    
SUN NIGHT
 
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.  
 

 
 
PMZ123-102030-  
OFFSHORE GALAPAGOS ISLANDS-  
119 AM PDT WED SEP 10 2025  
   
TODAY
 
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
14 SECONDS.    
TONIGHT
 
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
THU
 
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS.    
THU NIGHT
 
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO  
SW SWELL. PERIOD 15 SECONDS.    
FRI
 
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
FRI NIGHT
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
SAT
 
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.    
SAT NIGHT
 
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
SUN
 
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
SUN NIGHT
 
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO  
SW SWELL. PERIOD 15 SECONDS.  
 

 
 
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