138
FZPN28 KNHC 042123
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
223 PM PDT Sat Oct 4 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.

PMZ101-050930-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
223 PM PDT Sat Oct 4 2025

.SYNOPSIS...Gentle to moderate southerly winds are expected south
of the monsoon trough into early next week. Southerly swell will
continue to propagate across the region, with a new set of long
period SW swell reaching the Galapagos Island tonight into Sun.
Light to gentle winds and moderate seas will persist north of the
monsoon trough. Looking ahead, winds may increase to fresh speeds
across the offshore waters of Guatemala and El Salvador as a low
pressure develops along the monsoon trough by the middle of next
week.

$$

PMZ111-050930-
Guatemala and El Salvador to 250 nm offshore-
223 PM PDT Sat Oct 4 2025

.TONIGHT...SW to W 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 night.
.SUN...N to NE winds 10 to 15 kt, shifting to SE to S in the
afternoon. Seas 5 to 7 ft in S to SW swell. Period 15 seconds.
Scattered showers and isolated tstms through the day.
.SUN NIGHT...S winds 10 to 15 kt, shifting to NW late. Seas 5 to
7 ft in S to SW swell. Period 17 seconds.
Scattered showers and isolated tstms through the night.
.MON...N winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms.
.MON NIGHT...W to NW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.
.TUE...W to NW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 14 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in W
swell. Period 13 seconds.
.WED...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 12 seconds.
.WED NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period
11 seconds.
.THU...SW winds 10 to 15 kt. Seas 5 to 7 ft in W to NW swell.
Period 11 seconds.
.THU NIGHT...W to NW winds 10 kt. Seas 5 to 7 ft in W to NW
swell. Period 10 seconds.

$$

PMZ113-050930-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
223 PM PDT Sat Oct 4 2025

.TONIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds. Scattered tstms.
.SUN...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. Scattered showers and isolated tstms
through the day.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds. Scattered showers and isolated tstms.
.MON...S to SW winds 10 kt Offshore Gulf of Papagayo, and SW
15 to 20 kt Elsewhere. Seas 5 to 7 ft. Period 17 seconds.
Scattered showers and isolated tstms.
.MON NIGHT...S to SW winds 10 kt Offshore Gulf of Papagayo, and
SW 15 to 20 kt Elsewhere. Seas 5 to 7 ft. 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...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and SW 10 kt Elsewhere. Seas 4 to 6 ft in SW to W
swell. Period 13 seconds.
.WED...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and SW 10 kt Elsewhere. Seas 4 to 6 ft in W to NW swell. Period
12 seconds.
.WED NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and SW 10 kt Elsewhere. Seas 4 to 6 ft in W to NW
swell. Period 11 seconds.
.THU...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in W to NW swell.
Period 11 seconds.
.THU NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and W 10 kt Elsewhere. Seas 4 to 6 ft in W to NW
swell. Period 11 seconds.

$$

PMZ115-050930-
North Costa Rica to West Panama to 250 nm offshore-
223 PM PDT Sat Oct 4 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. Numerous showers and scattered tstms through the
night.
.SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
Numerous showers and scattered tstms through the day.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
17 seconds. Scattered showers and isolated tstms through the
night.
.MON...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds.
Scattered showers and isolated tstms through the day.
.MON NIGHT...W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.TUE...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds.
.TUE NIGHT...W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds.
.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 14 seconds.
.WED NIGHT...SW to W winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 13 seconds.
.THU...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 12 seconds.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 12 seconds.

$$

PMZ117-050930-
East Panama and Colombia including the Gulf of Panama-
223 PM PDT Sat Oct 4 2025

.TONIGHT...SW 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.
.SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
Scattered showers and isolated tstms through the day.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
17 seconds. Scattered tstms through the night.
.MON...SW to W winds 10 to 15 kt. Seas 4 to 6 ft in SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the day.
.MON NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 15 seconds.
.TUE...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.WED NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.
.THU...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 12 seconds.

$$

PMZ119-050930-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
223 PM PDT Sat Oct 4 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.MON...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds.
.MON NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW
swell. 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 5 to 7 ft in S to
SW swell. Period 15 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 12 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 12 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.

$$

PMZ121-050930-
Ecuador between 250 and 500 nm offshore-
223 PM PDT Sat Oct 4 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.MON...SE to S winds 10 kt. Seas 4 to 6 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 15 seconds.
.TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 16 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 12 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.THU...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period
11 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.

$$

PMZ123-050930-
Offshore Galapagos Islands-
223 PM PDT Sat Oct 4 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
17 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
.MON NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
.TUE...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.TUE NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 12 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 11 seconds.
.WED NIGHT...S winds 10 kt. Seas 5 to 7 ft in S swell. Period
11 seconds.
.THU...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period
10 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.

$$

Forecaster GR