FZPN28 KNHC 181610 OFFPZ8 Offshore Waters Forecast NWS National Hurricane Center Miami, FL 910 AM PDT Sat Jul 18 2026 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. PMZ101-190415- Synopsis for the E Pacific within 250 nm of Central America, Colombia, and within 750 nm of Ecuador 910 AM PDT Sat Jul 18 2026 .SYNOPSIS...Fresh to strong NE to E winds and moderate to rough seas will persist across the Papagayo region through early next week, with moderate to fresh NE winds pulsing near the Gulf of Fonseca. Gentle to moderate N winds are expected in the Gulf of Panama with slight to moderate seas. Moderate or weaker winds and moderate seas in SW swell are expected elsewhere, except in the immediate lee of the Galapagos Islands and nearshore western Colombia where slight seas are forecast. $$ PMZ111-190415- Guatemala and El Salvador to 250 nm offshore- 910 AM PDT Sat Jul 18 2026 .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft in SE swell. Period 13 seconds. .TONIGHT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in SE swell. Period 13 seconds. Scattered showers and isolated thunderstorms. .SUN...NE winds 10 kt. Seas 5 to 7 ft in SE to S swell. Period 17 seconds. .SUN NIGHT...W to NW winds 10 kt. Seas 4 to 6 ft in S swell. Period 17 seconds. .MON...N winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds. .MON NIGHT...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds. .TUE...NE winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 14 seconds. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period 13 seconds. .WED...NE to E winds 10 to 15 kt. Seas 5 to 7 ft in SE swell. Period 11 seconds. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft in E to SE swell. Period 11 seconds. $$ PMZ113-190415- El Salvador to North Costa Rica including the Gulfs of Fonseca and Papagayo- 910 AM PDT Sat Jul 18 2026 .TODAY...NE to E winds 20 to 25 kt. Seas 6 to 9 ft in E swell. Period 14 seconds. Scattered showers and isolated thunderstorms. .TONIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft. Period 13 seconds. Scattered showers and isolated thunderstorms. .SUN...NE winds 15 to 20 kt. Seas 5 to 7 ft. Period 17 seconds. Scattered showers and isolated thunderstorms through the day. .SUN NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. Period 17 seconds. Scattered showers and isolated thunderstorms. .MON...NE winds 20 to 25 kt. Seas 6 to 8 ft. Period 13 seconds. .MON NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 8 ft in E swell. Period 13 seconds. .TUE...NE to E winds 20 to 25 kt. Seas 6 to 8 ft. Period 12 seconds. .TUE NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in E swell. Period 12 seconds. .WED...E winds 15 to 20 kt. Seas 5 to 7 ft. Period 11 seconds. .WED NIGHT...E to SE winds 15 to 20 kt. Seas 5 to 7 ft. Period 11 seconds. $$ PMZ115-190415- North Costa Rica to West Panama to 250 nm offshore- 910 AM PDT Sat Jul 18 2026 .TODAY...Variable winds less than 5 kt Near the Azuero Peninsula, and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period 13 seconds. Scattered to numerous showers and thunderstorm. .TONIGHT...W winds 10 kt. Seas 4 to 6 ft in S swell. Period 13 seconds. Scattered showers and thunderstorms. .SUN...Near the Azuero Peninsula, variable winds less than 5 kt, becoming W 10 kt in the afternoon. Elsewhere, W winds 10 kt. Seas 4 to 6 ft in S swell. Period 13 seconds. Scattered showers and thunderstorms. .SUN NIGHT...W winds 10 kt. Seas 4 to 6 ft in S swell. Period 14 seconds. Scattered showers and isolated thunderstorms. .MON...Variable winds less than 5 kt Near the Azuero Peninsula, and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S swell. Period 13 seconds. .MON NIGHT...Variable winds less than 5 kt Near the Azuero Peninsula, and SW 10 kt Elsewhere. Seas 4 to 6 ft in S swell. Period 13 seconds. .TUE...Variable winds less than 5 kt Near the Azuero Peninsula, and S 10 kt Elsewhere. Seas 3 to 5 ft. Period 13 seconds. .TUE NIGHT...Variable winds less than 5 kt Near the Azuero Peninsula, and S to SW 10 kt Elsewhere. Seas 3 to 5 ft. Period 13 seconds. .WED...Variable winds less than 5 kt Near the Azuero Peninsula, and S to SW 10 kt Elsewhere. Seas 3 to 5 ft. Period 11 seconds. .WED NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 11 seconds. $$ PMZ117-190415- East Panama and Colombia including the Gulf of Panama- 910 AM PDT Sat Jul 18 2026 .TODAY...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 13 seconds. Winds and seas higher in and near numerous showers and thunderstorms. .TONIGHT...W winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 13 seconds. Scattered to numerous showers and thunderstorms. .SUN...SW to W winds 10 to 15 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. Scattered showers and thunderstorms. .SUN NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period 17 seconds. Scattered to numerous showers and thunderstorms. .MON...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds. .MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 15 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 kt. Seas 3 to 5 ft. Period 13 seconds. .WED...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .WED NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period 12 seconds. $$ PMZ119-190415- Ecuador including the Gulf of Guayaquil to 250 nm offshore- 910 AM PDT Sat Jul 18 2026 .TODAY...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW swell. Period 12 seconds. .SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW swell. Period 13 seconds. .SUN NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 16 seconds. .MON...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds. .MON NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 13 seconds. .TUE...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .TUE NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .WED...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .WED NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. $$ PMZ121-190415- Ecuador between 250 and 500 nm offshore- 910 AM PDT Sat Jul 18 2026 .TODAY...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft in S swell. Period 13 seconds. .SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S swell. Period 15 seconds. .MON...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .WED...S winds 15 kt. Seas 4 to 6 ft. Period 12 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 12 seconds. $$ PMZ123-190415- Offshore Galapagos Islands- 910 AM PDT Sat Jul 18 2026 .TODAY...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft in S swell. Period 14 seconds. .SUN...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 15 seconds. .SUN NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 15 seconds. .MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .MON NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .TUE...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .WED...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period 11 seconds. $$ Forecaster Aguirre