786
FZPN28 KNHC 200255
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
755 PM PDT Tue Aug 19 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.

PMZ101-201500-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
755 PM PDT Tue Aug 19 2025

.SYNOPSIS...Light to gentle winds will prevail across the waters
north of 05N through the weekend, except for moderate winds
pulsing in the Gulf of Papagayo at night starting Thursday.
Gentle to moderate winds are expected south of 05N. Cross-
equatorial southerly swell will propagate across the regional
waters, keeping seas in the moderate range through Fri, except
in the lee of the Galapagos Islands where slight seas are
expected. Another round of large swell will move into the waters
off Ecuador and Colombia by late Fri, and reach the offshore
waters of Central America by Sun.

$$

PMZ111-201500-
Guatemala and El Salvador to 250 nm offshore-
755 PM PDT Tue Aug 19 2025

.TONIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S to
SW swell. Period 15 seconds. Scattered showers and isolated
tstms through the night.
.WED...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.WED NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 14 seconds.
.THU...Variable winds less than 5 kt, becoming SE to S 10 kt in
the afternoon. Seas 3 to 5 ft in S to SW swell. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.THU NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.FRI...SE winds 10 kt. Seas 4 to 6 ft in S swell. Period
15 seconds.
.FRI NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
swell. Period 14 seconds.
.SAT...E to SE winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.SAT NIGHT...SE winds 10 kt. Seas 4 to 6 ft in S swell. Period
17 seconds.
.SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. Period 18 seconds.
.SUN NIGHT...SE winds 10 kt. Seas 6 to 8 ft in S swell. Period
19 seconds.

$$

PMZ113-201500-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
755 PM PDT Tue Aug 19 2025

.TONIGHT...Variable winds less than 5 kt, becoming S 10 kt late.
Seas 3 to 5 ft in S to SW swell. Period 15 seconds.
Scattered showers and isolated tstms through the night.
.WED...Offshore Gulf of Papagayo, NE to E winds 10 kt in the
morning, becoming variable winds less than 5 kt. Elsewhere,
variable winds less than 5 kt. Seas 3 to 5 ft in S to SW swell.
Period 15 seconds.
.WED NIGHT...Variable winds less than 5 kt, becoming W to NW
10 kt late. Seas 3 to 5 ft in S to SW swell. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.THU...Offshore Gulf of Papagayo, E winds 10 to 15 kt.
Elsewhere, N winds 10 kt in the morning, becoming variable winds
less than 5 kt. Seas 3 to 5 ft in S to SW swell. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.THU NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds.
.FRI...SE winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.FRI NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S swell.
Period 15 seconds.
.SAT...SE winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.SAT NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.SUN...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds.
.SUN NIGHT...S to SW winds 10 kt. Seas 6 to 8 ft in S to SW
swell. Period 19 seconds.

$$

PMZ115-201500-
North Costa Rica to West Panama to 250 nm offshore-
755 PM PDT Tue Aug 19 2025

.TONIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the night.
.WED...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. Scattered showers and isolated tstms through
the day.
.WED NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW to W 10 kt Elsewhere. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds. Scattered showers and isolated
tstms through the night.
.THU...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.THU NIGHT...SW to W winds 10 kt. Seas 6 to 8 ft in S swell.
Period 15 seconds.
.FRI...SW winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period
14 seconds.
.FRI NIGHT...W winds 10 kt Near the Azuero Peninsula, and SW to
W 15 to 20 kt Elsewhere. Seas 6 to 8 ft in S swell. Period
13 seconds.
.SAT...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 to 15 kt Elsewhere. Seas 6 to 8 ft in S swell. Period
12 seconds.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 12 seconds.
.SUN...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 to 15 kt Elsewhere. Seas 6 to 9 ft in S to SW swell.
Period 15 seconds.
.SUN NIGHT...SW to W winds 10 kt. Seas 6 to 9 ft in S to SW
swell. Period 18 seconds.

$$

PMZ117-201500-
East Panama and Colombia including the Gulf of Panama-
755 PM PDT Tue Aug 19 2025

.TONIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the night.
.WED...Gulf of Panama, variable winds less than 5 kt, becoming
SW to W 10 kt in the afternoon. Elsewhere, SW winds 10 to 15 kt.
Seas 4 to 6 ft. Period 15 seconds. Scattered showers and
isolated tstms through the day.
.WED NIGHT...Variable winds less than 5 kt Gulf of Panama, and
SW 10 to 15 kt Elsewhere. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. Numerous showers and scattered tstms through
the night.
.THU...Gulf of Panama, variable winds less than 5 kt, becoming W
10 kt in the afternoon. Elsewhere, SW winds 10 to 15 kt. Seas
5 to 7 ft in S to SW swell. Period 14 seconds. Numerous showers
and scattered tstms through the day.
.THU NIGHT...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
15 seconds.
.FRI...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds.
.FRI NIGHT...SW to W winds 10 kt Gulf of Panama, and SW 15 to
20 kt Elsewhere. Seas 5 to 7 ft. Period 14 seconds.
.SAT...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 14 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.SUN...SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell.
Period 17 seconds.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 7 to 10 ft in S to
SW swell. Period 16 seconds.

$$

PMZ119-201500-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
755 PM PDT Tue Aug 19 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft. Period
15 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.
.FRI...W winds 10 kt Gulf of Guayaquil, and S to SW 15 to 20 kt
Elsewhere. Seas 5 to 7 ft. Period 15 seconds.
.FRI NIGHT...S to SW winds 15 to 20 kt. Seas 5 to 7 ft. Period
14 seconds.
.SAT...W winds 10 kt Gulf of Guayaquil, and S to SW 15 to 20 kt
Elsewhere. Seas 6 to 8 ft in S to SW swell. Period 12 seconds.
.SAT NIGHT...S to SW winds 10 to 15 kt. Seas 7 to 10 ft in S to
SW swell. Period 15 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 8 to 12 ft in S to SW
swell. Period 18 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 9 to 13 ft in S to
SW swell. Period 17 seconds.

$$

PMZ121-201500-
Ecuador between 250 and 500 nm offshore-
755 PM PDT Tue Aug 19 2025

.TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.WED...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period
14 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds.
.THU...S winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period
16 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds.
.FRI...S winds 15 to 20 kt. Seas 5 to 7 ft. Period 14 seconds.
.FRI NIGHT...S winds 15 kt. Seas 5 to 7 ft in S swell. Period
14 seconds.
.SAT...S winds 15 kt. Seas 6 to 8 ft in S swell. Period
12 seconds.
.SAT NIGHT...S winds 15 kt. Seas 7 to 11 ft in S to SW swell.
Period 15 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 9 to 13 ft in S to SW
swell. Period 18 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 9 to 13 ft in S to
SW swell. Period 16 seconds.

$$

PMZ123-201500-
Offshore Galapagos Islands-
755 PM PDT Tue Aug 19 2025

.TONIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 14 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 17 seconds.
.THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 16 seconds.
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 13 seconds.
.FRI...SE to S winds 15 kt. Seas 5 to 7 ft in S swell. Period
12 seconds.
.FRI NIGHT...SE to S winds 15 kt. Seas 6 to 8 ft in S swell.
Period 12 seconds.
.SAT...SE to S winds 15 to 20 kt. Seas 6 to 9 ft in S swell.
Period 12 seconds.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S
swell. Period 14 seconds.
.SUN...SE winds 15 kt. Seas 9 to 13 ft in S swell. Period
14 seconds.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 9 to 13 ft in S swell.
Period 14 seconds.

$$

Forecaster Christensen