510
FZPN28 KNHC 292236
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
336 PM PDT Fri Aug 29 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.

PMZ101-301045-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
336 PM PDT Fri Aug 29 2025

.SYNOPSIS...A long-period SW swell will propagate through the
South American waters this weekend, leading to rough seas
offshore of Ecuador tonight into Sat, and offshore of Colombia
through Panama on Sat. Seas will subside on Sun. Elsewhere,
occasional moderate to locally fresh E to NE winds are expected
in the Gulf of Papagayo through the waters offshore of El
Salvador and Guatemala this weekend into early next week as a
potential tropical cyclone develops offshore of southern Mexico.
Looking ahead, fresh to strong NE winds will pulse early next
week in the Gulf of Papagayo.

$$

PMZ111-301045-
Guatemala and El Salvador to 250 nm offshore-
336 PM PDT Fri Aug 29 2025

.TONIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 18 seconds. Scattered showers and isolated tstms.
.SAT...SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 18 seconds. Scattered showers and isolated tstms through
the day.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 17 seconds. Scattered showers and isolated
tstms through the night.
.SUN...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the day.
.SUN NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.MON...E winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
15 seconds.
.MON NIGHT...W winds 10 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 15 seconds.
.TUE NIGHT...N to NE winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.WED...NE to E winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 17 seconds.
.WED NIGHT...E to SE winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 18 seconds.

$$

PMZ113-301045-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
336 PM PDT Fri Aug 29 2025

.TONIGHT...Offshore Gulf of Papagayo, E to SE winds 10 to 15 kt.
S winds 10 kt elsewhere. Seas 4 to 6 ft in S to SW swell. Period
18 seconds. Scattered showers and isolated tstms through the
night.
.SAT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
18 seconds. Scattered showers and isolated tstms through the
day.
.SAT NIGHT...Offshore Gulf of Papagayo, E winds 10 to 15 kt. S
to SW winds 10 kt elsewhere. Seas 5 to 7 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the night.
.SUN...Offshore Gulf of Papagayo, E winds 10 to 20 kt. SW to W
winds 10 kt elsewhere. Seas 5 to 7 ft in S to SW swell. Period
16 seconds. Scattered showers and isolated tstms through the day.
.SUN NIGHT...Offshore Gulf of Papagayo, E winds 10 to 20 kt. W
winds 10 to 15 kt elsewhere. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.MON...N to NE winds 15 to 20 kt. Seas 4 to 6 ft. Period 15
seconds.
.MON NIGHT...NE to E winds 15 to 25 kt. Seas 4 to 6 ft. Period
15 seconds.
.TUE...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. Period
15 seconds.
.TUE NIGHT...E to SE winds 10 to 20 kt. Seas 4 to 6 ft. Period
15 seconds.
.WED...E to SE winds 10 to 20 kt. Seas 4 to 6 ft. Period 17
seconds.
.WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds.

$$

PMZ115-301045-
North Costa Rica to West Panama to 250 nm offshore-
336 PM PDT Fri Aug 29 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 19 seconds. Scattered showers and isolated tstms
through the night.
.SAT...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming SW to W 10 kt in the afternoon. Elsewhere, SW winds
10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 18 seconds.
Scattered showers and isolated tstms through the day.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 17 seconds. Scattered showers and isolated
tstms through the night.
.SUN...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the day.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. 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 5 to 7 ft in S to
SW swell. Period 15 seconds.
.TUE...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 17 seconds.
.WED...SW winds 10 kt Near the Azuero Peninsula, and SW 15 to
20 kt Elsewhere. Seas 5 to 7 ft. Period 18 seconds.
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 17 seconds.

$$

PMZ117-301045-
East Panama and Colombia including the Gulf of Panama-
336 PM PDT Fri Aug 29 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 19 seconds. Scattered showers and isolated tstms through
the night.
.SAT...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period
18 seconds. Scattered showers and isolated tstms through the
day.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 17 seconds. Scattered tstms through the night.
.SUN...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. 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 5 to 7 ft in S to SW
swell. Period 15 seconds.
.TUE...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds.
.WED...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
18 seconds.
.WED NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 17 seconds.

$$

PMZ119-301045-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
336 PM PDT Fri Aug 29 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 18 seconds.
.SAT...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in SW swell.
Period 17 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...Gulf of Guayaquil, variable winds less than 5 kt,
becoming SW to W 10 kt in the afternoon. Elsewhere, S to SW
winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period
15 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 15 seconds.
.MON...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.TUE...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds.
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 18 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 18 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 17 seconds.

$$

PMZ121-301045-
Ecuador between 250 and 500 nm offshore-
336 PM PDT Fri Aug 29 2025

.TONIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds.
.SAT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds.
.SAT NIGHT...SE to S 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 8 ft in S to SW swell.
Period 15 seconds.
.SUN NIGHT...S winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds.
.MON...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds.
.MON NIGHT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds.
.TUE...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
17 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 19 seconds.
.WED...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 17 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds.

$$

PMZ123-301045-
Offshore Galapagos Islands-
336 PM PDT Fri Aug 29 2025

.TONIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds.
.SAT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 15 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds.
.SUN NIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW
swell. Period 12 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 12 seconds.
.MON NIGHT...S winds 10 kt. Seas 5 to 7 ft in S swell. Period
13 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 16 seconds.

$$

Forecaster ADAMS