Marine Weather and Tide Forecast for Potrero, CA
 | Sunrise 5:45 AM Sunset 7:40 PM Moonrise 10:44 AM Moonset 12:10 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
PZZ740 Coastal Waters From San Mateo Point To The Mexican Border And Out To 10 Nm- 202 Am Pdt Thu May 21 2026
Today - Wind variable less than 10 kt - .becoming sw 10 kt this afternoon. Seas 3 ft. Wave detail: S 1 foot at 4 seconds, W 2 ft at 6 seconds and S 2 ft at 13 seconds.
Tonight - Wind variable less than 10 kt. Seas 2 ft or less. Wave detail: W 1 foot at 4 seconds, W 1 foot at 12 seconds and S 2 ft at 14 seconds.
Fri - Wind variable less than 10 kt - .becoming W 10 kt in the afternoon. Seas 2 ft or less - .becoming 3 ft in the afternoon. W 1 foot at 4 seconds, W 1 foot at 11 seconds and S 2 ft at 13 seconds.
Fri night - Wind W 10 kt in the evening - .becoming variable less than 10 kt. Seas 2 ft or less. Wave detail: W 1 foot at 4 seconds, W 1 foot at 11 seconds and S 2 ft at 13 seconds.
Sat - Wind W 10 kt. Seas 2 ft or less - .becoming 3 ft in the afternoon. W 2 ft at 4 seconds, W 1 foot at 10 seconds and sw 2 ft at 17 seconds.
Sat night - Wind W 10 kt in the evening - .becoming variable less than 10 kt. Seas 2 ft or less. Wave detail: W 2 ft at 4 seconds, W 1 foot at 10 seconds and sw 2 ft at 16 seconds.
Sun - Wind variable less than 10 kt - .becoming W 15 kt in the afternoon. Seas 2 ft or less - .becoming 3 ft in the afternoon. W 2 ft at 5 seconds and sw 2 ft at 16 seconds.
Sun night - Wind nw 10 kt in the evening - .becoming variable less than 10 kt. Seas 3 ft. Wave detail: W 2 ft at 4 seconds and sw 2 ft at 16 seconds.
Mon - Wind variable less than 10 kt - .becoming W 10 to 15 kt in the afternoon. Seas 3 ft. Wave detail: W 2 ft at 4 seconds and S 2 ft at 18 seconds.
Mon night - Wind W 10 kt in the evening - .becoming variable less than 10 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 5 seconds and S 3 ft at 16 seconds.
PZZ700 202 Am Pdt Thu May 21 2026
Synopsis for the far southern ca coast - At 1 am, a 1033 mb high was 700 nautical miles west of cape mendocino and a 1008 mb low extended from las vegas south to san felipe, mexico. Weak to moderate onshore flow will continue through Monday, with an intermittent coastal eddy circulation through Friday morning.
7 Day Forecast for Marine Location Near Potrero, CA
NEW! Add second zone forecast
| South San Diego Bay Click for Map Thu -- 12:14 AM PDT Moonset Thu -- 12:39 AM PDT 6.07 feet High Tide Thu -- 05:46 AM PDT Sunrise Thu -- 08:16 AM PDT -0.63 feet Low Tide Thu -- 10:44 AM PDT Moonrise Thu -- 03:25 PM PDT 3.96 feet High Tide Thu -- 07:44 PM PDT Sunset Thu -- 07:49 PM PDT 3.05 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
South San Diego Bay, California, Tide feet
| 12 am |
| 6 |
| 1 am |
| 6 |
| 2 am |
| 5.6 |
| 3 am |
| 4.6 |
| 4 am |
| 3.3 |
| 5 am |
| 2 |
| 6 am |
| 0.7 |
| 7 am |
| -0.2 |
| 8 am |
| -0.6 |
| 9 am |
| -0.5 |
| 10 am |
| 0.1 |
| 11 am |
| 0.9 |
| 12 pm |
| 1.9 |
| 1 pm |
| 2.9 |
| 2 pm |
| 3.6 |
| 3 pm |
| 3.9 |
| 4 pm |
| 3.9 |
| 5 pm |
| 3.7 |
| 6 pm |
| 3.4 |
| 7 pm |
| 3.1 |
| 8 pm |
| 3.1 |
| 9 pm |
| 3.2 |
| 10 pm |
| 3.7 |
| 11 pm |
| 4.2 |
| Imperial Beach Click for Map Thu -- 12:14 AM PDT Moonset Thu -- 12:40 AM PDT 5.49 feet High Tide Thu -- 05:46 AM PDT Sunrise Thu -- 08:15 AM PDT -0.63 feet Low Tide Thu -- 10:44 AM PDT Moonrise Thu -- 03:18 PM PDT 3.57 feet High Tide Thu -- 07:44 PM PDT Sunset Thu -- 07:46 PM PDT 2.64 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Imperial Beach, California, Tide feet
| 12 am |
| 5.4 |
| 1 am |
| 5.5 |
| 2 am |
| 5.1 |
| 3 am |
| 4.2 |
| 4 am |
| 3 |
| 5 am |
| 1.8 |
| 6 am |
| 0.6 |
| 7 am |
| -0.2 |
| 8 am |
| -0.6 |
| 9 am |
| -0.5 |
| 10 am |
| 0 |
| 11 am |
| 0.9 |
| 12 pm |
| 1.8 |
| 1 pm |
| 2.7 |
| 2 pm |
| 3.3 |
| 3 pm |
| 3.6 |
| 4 pm |
| 3.5 |
| 5 pm |
| 3.3 |
| 6 pm |
| 3 |
| 7 pm |
| 2.7 |
| 8 pm |
| 2.6 |
| 9 pm |
| 2.8 |
| 10 pm |
| 3.3 |
| 11 pm |
| 3.8 |
FXUS66 KSGX 211629 AFDSGX
Area Forecast Discussion National Weather Service San Diego CA 929 AM PDT Thu May 21 2026
SYNOPSIS
There will be increasing coverage of night and morning coastal low clouds into the weekend with the low clouds spreading farther into the valleys. High temperatures will also cool for the coast and valleys from 5 to 10 degrees above average to around average. For Monday through Wednesday of next week, there will be additional deepening of the marine layer and cooling. Night and morning coastal low clouds will extend well inland and onto the coastal slopes of the mountains with slower and more limited daytime clearing.
DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
Updated Aviation and Marine Discussion
.SHORT TERM (Today through Saturday)...
High temperatures for today will cool a few degrees from the coast into the valleys while the mountains and deserts will warm another few to around 5 degrees. High temperatures will be around 5 to 10 degrees above average for the valleys and inland coastal areas with the lower deserts and locations near the coast a few degrees above average. High temperatures for today will range from around 70 near the coast to the mid 80s to lower 90s for the Inland Empire with the upper 90s for the lower deserts.
There will be additional cooling for the coast and valleys on Friday with not much change for most areas on Saturday. High temperatures on Saturday will be mostly within a few degrees of average, ranging from around 70 near the coast to the 80s for the Inland Empire with the lower deserts in the upper 90s.
There is a weak coastal eddy early this morning with satellite imagery showing low clouds along the northern Baja coast and coastal waters extending northward along the San Diego County coast and into southern Orange County. Coastal low clouds will gradually increase in coverage and spread farther inland into the valleys into the weekend as the marine layer slowly deepens with low clouds spreading inland into portions of the inland valleys on Saturday morning.
.LONG TERM (Sunday through Wednesday)...
Sunday will be similar to Saturday. For Monday through Wednesday, there will be additional deepening of the marine layer and cooling. Night and morning coastal low clouds will extend well inland and onto the coastal slopes of the mountains with slower and more limited daytime clearing.
High temperatures on Tuesday will be as much as 5 to 10 degrees below average for the mountains and valleys with high temperatures ranging from the mid to upper 60s near the coast to the upper 60s to mid 70s for the Inland Empire with the lower deserts in the upper 80s to mid 90s.
AVIATION
211630Z
Coast/Valleys
SKC over land areas through this afternoon with low clouds lingering just offshore. Cigs to move ashore after 03Z with slightly higher bases (1200-1800 ft MSL). Clouds spreading northward and into western valleys overnight reaching up to 15-20 miles inland. 30% chance for cigs reaching the western/southern Inland Empire (including KONT). Clouds scattering to the coast by 17- 18z Fri.
Otherwise, mostly clear and VFR conditions today and tonight.
MARINE
No hazardous marine conditions are expected through Tuesday morning.
SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
SGX WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...None.
Area Forecast Discussion National Weather Service San Diego CA 929 AM PDT Thu May 21 2026
SYNOPSIS
There will be increasing coverage of night and morning coastal low clouds into the weekend with the low clouds spreading farther into the valleys. High temperatures will also cool for the coast and valleys from 5 to 10 degrees above average to around average. For Monday through Wednesday of next week, there will be additional deepening of the marine layer and cooling. Night and morning coastal low clouds will extend well inland and onto the coastal slopes of the mountains with slower and more limited daytime clearing.
DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
Updated Aviation and Marine Discussion
.SHORT TERM (Today through Saturday)...
High temperatures for today will cool a few degrees from the coast into the valleys while the mountains and deserts will warm another few to around 5 degrees. High temperatures will be around 5 to 10 degrees above average for the valleys and inland coastal areas with the lower deserts and locations near the coast a few degrees above average. High temperatures for today will range from around 70 near the coast to the mid 80s to lower 90s for the Inland Empire with the upper 90s for the lower deserts.
There will be additional cooling for the coast and valleys on Friday with not much change for most areas on Saturday. High temperatures on Saturday will be mostly within a few degrees of average, ranging from around 70 near the coast to the 80s for the Inland Empire with the lower deserts in the upper 90s.
There is a weak coastal eddy early this morning with satellite imagery showing low clouds along the northern Baja coast and coastal waters extending northward along the San Diego County coast and into southern Orange County. Coastal low clouds will gradually increase in coverage and spread farther inland into the valleys into the weekend as the marine layer slowly deepens with low clouds spreading inland into portions of the inland valleys on Saturday morning.
.LONG TERM (Sunday through Wednesday)...
Sunday will be similar to Saturday. For Monday through Wednesday, there will be additional deepening of the marine layer and cooling. Night and morning coastal low clouds will extend well inland and onto the coastal slopes of the mountains with slower and more limited daytime clearing.
High temperatures on Tuesday will be as much as 5 to 10 degrees below average for the mountains and valleys with high temperatures ranging from the mid to upper 60s near the coast to the upper 60s to mid 70s for the Inland Empire with the lower deserts in the upper 80s to mid 90s.
AVIATION
211630Z
Coast/Valleys
SKC over land areas through this afternoon with low clouds lingering just offshore. Cigs to move ashore after 03Z with slightly higher bases (1200-1800 ft MSL). Clouds spreading northward and into western valleys overnight reaching up to 15-20 miles inland. 30% chance for cigs reaching the western/southern Inland Empire (including KONT). Clouds scattering to the coast by 17- 18z Fri.
Otherwise, mostly clear and VFR conditions today and tonight.
MARINE
No hazardous marine conditions are expected through Tuesday morning.
SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
SGX WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| TIXC1 - Tijuana River Reserve, CA | 66 mi | 94 min | SW 4.1 | 64°F | 29.92 | 59°F | ||
| SDBC1 - 9410170 - San Diego, CA | 76 mi | 49 min | 69°F | 29.93 |
Wind History for No Ports station near this location
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Terminal Aerodrome Forecast (TAF) for KSDM
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GEOS Local Image of Southwest
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San Diego, CA,
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