370
FZPN28 KNHC 230253
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
753 PM PDT Fri Aug 22 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.

PMZ101-231500-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
753 PM PDT Fri Aug 22 2025

.SYNOPSIS...Fresh south to southwest winds and locally rough
seas are expected offshore of Costa Rica through Colombia tonight
through Sat morning. A long-period south to southwest swell will
propagate through the South American waters this weekend,
promoting rough seas offshore of Ecuador by Sat morning, and
offshore of much of the Central and South American waters late
this weekend into early next week. Very rough seas will be
possible south of the equator Sun into early next week. Seas will
slowly subside by the middle of next week. Elsewhere, moderate
to fresh northeast to east winds will pulse in the Gulf of
Papagayo through at least next Tue.

$$

PMZ111-231500-
Guatemala and El Salvador to 250 nm offshore-
753 PM PDT Fri Aug 22 2025

.TONIGHT...SE winds 10 kt in the evening, becoming variable
winds less than 5 kt. Seas 4 to 6 ft in S swell. Period
15 seconds. Isolated showers and thunderstorms.
.SAT...E winds 10 kt. Seas 4 to 6 ft in S swell. Period
15 seconds. Scattered showers and isolated thunderstorms.
.SAT NIGHT...E to SE winds 10 kt. Seas 4 to 6 ft in S swell.
Period 21 seconds. Scattered showers and isolated thunderstorms.
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. Period 21 seconds.
Scattered showers and isolated thunderstorms.
.SUN NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S swell.
Period 19 seconds.
.MON...SE winds 10 kt. Seas 6 to 8 ft in S swell. Period
18 seconds.
.MON NIGHT...E winds 10 kt. Seas 6 to 8 ft in S swell. Period
16 seconds.
.TUE...E winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period
15 seconds.
.TUE NIGHT...NE to E winds 10 kt. Seas 6 to 8 ft in S swell.
Period 14 seconds.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period
13 seconds.
.WED NIGHT...E winds 10 kt. Seas 5 to 7 ft in S swell. Period
13 seconds.

$$

PMZ113-231500-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
753 PM PDT Fri Aug 22 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. Scattered showers and isolated thunderstorms.
.SAT...NE to E winds 10 to 15 kt, shifting to S in the
afternoon. Seas 4 to 6 ft in S swell. Period 15 seconds.
Scattered showers and isolated thunderstorms.
.SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft in S swell.
Period 14 seconds. Scattered showers and isolated thunderstorms.
.SUN...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 21 seconds. Scattered showers and isolated thunderstorms.
.SUN NIGHT...SW winds 10 kt. Seas 5 to 7 ft in S swell. Period
18 seconds.
.MON...N winds 10 kt. Seas 6 to 8 ft in S swell. Period
18 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 16 seconds.
.TUE...NE to E winds 15 to 20 kt. Seas 6 to 9 ft in S swell.
Period 14 seconds.
.TUE NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in S
swell. Period 14 seconds.
.WED...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 13 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.

$$

PMZ115-231500-
North Costa Rica to West Panama to 250 nm offshore-
753 PM PDT Fri Aug 22 2025

.TONIGHT...Near the Azuero Peninsula, W winds 10 kt in the
evening, becoming variable winds less than 5 kt. Elsewhere, SW
winds 15 to 20 kt. Seas 6 to 8 ft in S swell. Period 15 seconds.
Scattered showers and thunderstorms.
.SAT...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 14 seconds. Scattered to numerous showers and
thunderstorms.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft. Period
14 seconds. Scattered to numerous showers and thunderstorms
through the night.
.SUN...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming SW to W 10 kt in the afternoon. Elsewhere, SW to W
winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period
20 seconds. Scattered showers and thunderstorms.
.SUN NIGHT...W winds 10 kt. Seas 6 to 9 ft in S to SW swell.
Period 18 seconds.
.MON...Variable winds less than 5 kt Near the Azuero Peninsula,
and W 10 kt Elsewhere. Seas 7 to 10 ft in S to SW swell. Period
17 seconds.
.MON NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and W to NW 10 kt Elsewhere. Seas 7 to 10 ft in S to
SW swell. Period 16 seconds.
.TUE...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 kt Elsewhere. Seas 6 to 9 ft in S swell. Period
14 seconds.
.TUE NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and S to SW 10 kt Elsewhere. Seas 6 to 8 ft in S
swell. Period 13 seconds.
.WED...Variable winds less than 5 kt Near the Azuero Peninsula,
and S to SW 10 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
13 seconds.
.WED NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S
swell. Period 12 seconds.

$$

PMZ117-231500-
East Panama and Colombia including the Gulf of Panama-
753 PM PDT Fri Aug 22 2025

.TONIGHT...SW to W winds 10 kt Gulf of Panama, and SW 15 to
20 kt Elsewhere. Seas 6 to 8 ft in S to SW swell. Period
16 seconds. Scattered showers and isolated thunderstorms.
.SAT...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds. Scattered showers and isolated thunderstorms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. Period
14 seconds. Scattered showers and isolated thunderstorms.
.SUN...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 20 seconds. Scattered showers and isolated thunderstorms.
.SUN NIGHT...SW to W winds 10 kt. Seas 7 to 10 ft in S to SW
swell. Period 16 seconds.
.MON...SW winds 10 kt. Seas 7 to 10 ft in S to SW swell. Period
16 seconds.
.MON NIGHT...SW to W winds 10 kt. Seas 7 to 10 ft in S to SW
swell. Period 16 seconds.
.TUE...SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell.
Period 15 seconds.
.TUE NIGHT...Variable winds less than 5 kt Gulf of Panama, and
SW 10 to 15 kt Elsewhere. Seas 6 to 8 ft in S to SW swell.
Period 14 seconds.
.WED...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 13 seconds.

$$

PMZ119-231500-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
753 PM PDT Fri Aug 22 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.SAT...SW to W winds 10 to 15 kt Gulf of Guayaquil, and S to SW
15 to 20 kt Elsewhere. Seas 6 to 8 ft in S to SW swell. Period
14 seconds.
.SAT NIGHT...W winds 10 to 15 kt Gulf of Guayaquil, and S to SW
15 to 20 kt Elsewhere. Seas 7 to 10 ft in S to SW swell. Period
19 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 8 to 12 ft in S to SW
swell. Period 19 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 8 to 12 ft in S to
SW swell. Period 16 seconds.
.MON...S to SW winds 10 to 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 15 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 7 to 10 ft in S to
SW swell. Period 14 seconds.
.TUE...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW
swell. Period 13 seconds.
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 13 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 11 seconds.

$$

PMZ121-231500-
Ecuador between 250 and 500 nm offshore-
753 PM PDT Fri Aug 22 2025

.TONIGHT...S winds 15 kt. Seas 5 to 7 ft in S swell. Period
14 seconds.
.SAT...S winds 15 kt. Seas 6 to 9 ft in S swell. Period
14 seconds.
.SAT NIGHT...SE to S winds 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 19 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 9 to 13 ft in S to SW
swell. Period 19 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 8 to 12 ft in S to
SW swell. Period 16 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 14 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas 7 to 10 ft in S swell.
Period 13 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S swell.
Period 13 seconds.
.TUE NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in SE to
S swell. Period 12 seconds.
.WED...S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell.
Period 11 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S
swell. Period 10 seconds.

$$

PMZ123-231500-
Offshore Galapagos Islands-
753 PM PDT Fri Aug 22 2025

.TONIGHT...SE to S winds 15 to 20 kt. Seas 6 to 8 ft in S swell.
Period 14 seconds.
.SAT...SE to S winds 15 to 20 kt. Seas 6 to 9 ft in S swell.
Period 10 seconds.
.SAT NIGHT...SE to S winds 15 kt. Seas 7 to 11 ft in S swell.
Period 19 seconds.
.SUN...SE winds 10 to 15 kt. Seas 9 to 13 ft in S swell. Period
19 seconds.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 8 to 12 ft in S swell.
Period 13 seconds.
.MON...SE winds 10 to 15 kt. Seas 7 to 11 ft in S swell. Period
13 seconds.
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 10 ft in S
swell. Period 13 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in SE to S
swell. Period 12 seconds.
.TUE NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in SE to
S swell. Period 12 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S
swell. Period 11 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SE to
S swell. Period 10 seconds.

$$

Forecaster Aguirre