837
FZPN28 KNHC 281957
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
1257 PM PDT Thu Aug 28 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.

PMZ101-290800-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
1257 PM PDT Thu Aug 28 2025

.SYNOPSIS...Moderate to fresh north to northeast gap winds will
pulse in the Gulf of Papagayo this weekend, possibly increasing
to fresh to strong early next week. Otherwise, mainly moderate or
weaker winds and moderate seas will prevail elsewhere, with
slight to moderate seas.

$$

PMZ111-290800-
Guatemala and El Salvador to 250 nm offshore-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...E winds 10 kt. Seas 4 to 6 ft in SE to S swell.
Period 13 seconds. Scattered showers and isolated thunderstorms.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. Period 18 seconds.
Scattered showers and isolated thunderstorms through the day.
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 19 seconds. Scattered showers and isolated
thunderstorms.
.SAT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft. Period
18 seconds. Scattered showers and thunderstorms.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds.
.SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.SUN NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds.
.MON...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.MON NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 15 seconds.
.TUE...N to NE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.TUE NIGHT...E winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.

$$

PMZ113-290800-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds. Winds and seas higher in and near scattered showers
and thunderstorms.
.FRI...NE winds 10 kt, shifting to S to SW in the afternoon.
Seas 4 to 6 ft in S swell. Period 13 seconds. Scattered showers
and thunderstorms.
.FRI NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 19 seconds. Scattered showers and thunderstorms.
.SAT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
18 seconds. Scattered showers and thunderstorms.
.SAT NIGHT...SW winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds.
.SUN...W winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds.
.SUN NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.MON...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo, and
N 10 kt Elsewhere. Seas 4 to 6 ft. Period 15 seconds.
.MON NIGHT...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. Period
12 seconds.
.TUE...E winds 15 to 20 kt. Seas 5 to 7 ft. Period 14 seconds.
.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.

$$

PMZ115-290800-
North Costa Rica to West Panama to 250 nm offshore-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. Winds and seas higher in and near scattered to
numerous showers and thunderstorms.
.FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds.
Scattered showers and thunderstorms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 19 seconds. Scattered showers and thunderstorms.
.SAT...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming SW 10 kt in the afternoon. Elsewhere, SW winds 10 to
15 kt. Seas 5 to 7 ft in S to SW swell. Period 18 seconds.
Scattered showers and thunderstorms.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 16 seconds.
.SUN...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.MON...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.MON NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.TUE...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.

$$

PMZ117-290800-
East Panama and Colombia including the Gulf of Panama-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. Winds and seas higher in and near scattered showers
and thunderstorms.
.FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 19 seconds.
Scattered showers and thunderstorms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft in SW swell.
Period 19 seconds. Scattered showers and thunderstorms.
.SAT...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
18 seconds.  Scattered showers and thunderstorms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 16 seconds.
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.MON...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.MON NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.TUE...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.

$$

PMZ119-290800-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.FRI...Gulf of Guayaquil, variable winds less than 5 kt,
becoming SW to W 10 to 15 kt in the afternoon. Elsewhere, S to
SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 19 seconds.
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 18 seconds.
.SAT...Gulf of Guayaquil, variable winds less than 5 kt,
becoming SW to W 10 to 15 kt in the afternoon. Elsewhere, S to
SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
17 seconds.
.SAT NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.
.MON...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.TUE...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.

$$

PMZ121-290800-
Ecuador between 250 and 500 nm offshore-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
19 seconds.
.FRI...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 19 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds.
.SAT...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 5 to 7 ft in S to SW
swell. Period 15 seconds.
.SUN...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.MON...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds.
.MON NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.

$$

PMZ123-290800-
Offshore Galapagos Islands-
1257 PM PDT Thu Aug 28 2025

.TONIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 19 seconds.
.FRI...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 18 seconds.
.FRI NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 17 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...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 13 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.MON NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 12 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.

$$

Forecaster Aguirre