Marine Weather and Tide Forecast for National City, CA
 | Sunrise 6:54 AM Sunset 6:58 PM Moonrise 6:38 AM Moonset 6:57 PM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
PZZ740 Coastal Waters From San Mateo Point To The Mexican Border And Out To 10 Nm- 215 Am Pdt Wed Mar 18 2026
Today - Wind variable less than 10 kt. Seas 3 ft. Wave detail: W 1 foot at 4 seconds, W 1 foot at 12 seconds and S 3 ft at 15 seconds.
Tonight - Wind variable less than 10 kt. Seas 3 ft. Wave detail: W 1 foot at 13 seconds and sw 3 ft at 14 seconds.
Thu - Wind variable less than 10 kt - .becoming W 10 kt in the afternoon. Seas 3 ft. Wave detail: W 1 foot at 4 seconds, W 1 foot at 11 seconds and sw 2 ft at 14 seconds.
Thu night - Wind variable less than 10 kt. Seas 3 ft. Wave detail: W 2 ft at 6 seconds and sw 2 ft at 14 seconds.
Fri - Wind variable less than 10 kt - .becoming W 10 kt in the afternoon. Seas 3 ft. Wave detail: W 2 ft at 5 seconds and S 2 ft at 14 seconds.
Fri night - Wind variable less than 10 kt. Seas 3 ft. Wave detail: nw 1 foot at 4 seconds, W 2 ft at 7 seconds and sw 2 ft at 14 seconds.
Sat - Wind variable less than 10 kt - .becoming W 10 kt in the afternoon. Seas 3 ft. Wave detail: W 1 foot at 4 seconds, W 2 ft at 8 seconds and sw 2 ft at 15 seconds.
Sat night - Wind variable less than 10 kt. Seas 3 ft. Wave detail: W 1 foot at 4 seconds, W 2 ft at 7 seconds and sw 2 ft at 14 seconds.
Sun - Wind variable less than 10 kt - .becoming W 10 kt in the afternoon. Seas 3 to 4 ft. Wave detail: sw 1 foot at 4 seconds, W 3 ft at 10 seconds and sw 2 ft at 14 seconds.
Sun night - Wind variable less than 10 kt. Seas 3 to 4 ft. Wave detail: W 1 foot at 4 seconds, W 3 ft at 10 seconds and sw 2 ft at 14 seconds.
PZZ700 215 Am Pdt Wed Mar 18 2026
Synopsis for the far southern california coast - At 1 am, a 1020 mb high was 300 nautical miles west of Monterey and another 1020 mb high was over salt lake city. A 1012 mb low covered southwest arizona. Variable weak flow will continue through Thursday. Weak onshore flow will prevail Friday, increasing slightly over the weekend.
7 Day Forecast for Marine Location Near National City, CA
NEW! Add second zone forecast
| National City Click for Map Wed -- 03:32 AM PDT 0.43 feet Low Tide Wed -- 06:37 AM PDT Moonrise Wed -- 06:54 AM PDT Sunrise Wed -- 09:28 AM PDT 5.86 feet High Tide Wed -- 03:55 PM PDT -0.41 feet Low Tide Wed -- 06:26 PM PDT New Moon Wed -- 06:56 PM PDT Moonset Wed -- 06:58 PM PDT Sunset Wed -- 09:58 PM PDT 5.70 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
National City, San Diego Bay, California, Tide feet
| 12 am |
| 3.5 |
| 1 am |
| 2.3 |
| 2 am |
| 1.2 |
| 3 am |
| 0.5 |
| 4 am |
| 0.5 |
| 5 am |
| 1.2 |
| 6 am |
| 2.4 |
| 7 am |
| 3.8 |
| 8 am |
| 5.1 |
| 9 am |
| 5.8 |
| 10 am |
| 5.8 |
| 11 am |
| 5 |
| 12 pm |
| 3.8 |
| 1 pm |
| 2.3 |
| 2 pm |
| 0.9 |
| 3 pm |
| -0.1 |
| 4 pm |
| -0.4 |
| 5 pm |
| 0.1 |
| 6 pm |
| 1.2 |
| 7 pm |
| 2.7 |
| 8 pm |
| 4.2 |
| 9 pm |
| 5.3 |
| 10 pm |
| 5.7 |
| 11 pm |
| 5.3 |
| National City Click for Map Flood direction 166 true Ebb direction 2 true Wed -- 01:44 AM PDT -0.76 knots Max Ebb Wed -- 04:16 AM PDT 0.00 knots Slack Wed -- 06:37 AM PDT Moonrise Wed -- 06:54 AM PDT Sunrise Wed -- 06:58 AM PDT 0.74 knots Max Flood Wed -- 09:53 AM PDT -0.00 knots Slack Wed -- 01:57 PM PDT -0.92 knots Max Ebb Wed -- 04:42 PM PDT 0.00 knots Slack Wed -- 06:26 PM PDT New Moon Wed -- 06:56 PM PDT Moonset Wed -- 06:58 PM PDT Sunset Wed -- 07:21 PM PDT 0.77 knots Max Flood Wed -- 10:21 PM PDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
National City, San Diego Bay, California Current, knots
| 12 am |
| -0.6 |
| 1 am |
| -0.7 |
| 2 am |
| -0.8 |
| 3 am |
| -0.5 |
| 4 am |
| -0.1 |
| 5 am |
| 0.3 |
| 6 am |
| 0.6 |
| 7 am |
| 0.7 |
| 8 am |
| 0.6 |
| 9 am |
| 0.4 |
| 10 am |
| -0 |
| 11 am |
| -0.4 |
| 12 pm |
| -0.7 |
| 1 pm |
| -0.9 |
| 2 pm |
| -0.9 |
| 3 pm |
| -0.8 |
| 4 pm |
| -0.3 |
| 5 pm |
| 0.1 |
| 6 pm |
| 0.5 |
| 7 pm |
| 0.8 |
| 8 pm |
| 0.7 |
| 9 pm |
| 0.5 |
| 10 pm |
| 0.1 |
| 11 pm |
| -0.2 |
FXUS66 KSGX 181004 AFDSGX
Area Forecast Discussion National Weather Service San Diego CA 304 AM PDT Wed Mar 18 2026
SYNOPSIS
Record strong high pressure for March over a broad area will continue to warm southwestern California the next few days with widespread record heat for March continuing into the weekend for inland areas. Through Friday, lowest daytime humidity for inland areas will range from around 10 percent for the deserts to 10 to 15 percent for the inland valleys. For the weekend into early next week, high pressure aloft will slowly weaken and weak onshore lower-level flow will return with cooling and higher coastal humidity spreading inland. Even with the cooling, high temperatures for next Tuesday will range from around 5 to 10 degrees above average near the coast to 12 to 18 degrees above average for inland areas. Widespread moderate or greater Heat Risk will continue into the weekend except near the immediate coast and in the higher elevations in the mountains.
DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
.SHORT TERM (Today through Friday)...
Widespread Moderate or greater Heat Risk will continue into the weekend except near the immediate coast and in the higher elevations in the mountains. For Thursday and Friday, some portions of the lower deserts, inland valleys, and inland Orange County will reach Major Heat Risk which can be dangerous to anyone without proper hydration or adequate cooling.
High pressure continues to strengthen across southwest California with record high pressure for March for a large area covering the southwest states and surrounding areas. There will continue to be widespread records tied or broken for record high temperatures and record warm low temperatures except near the beaches. There will also be a growing number of monthly records for heat for March that will also be tied or broken.
Outside of the immediate coast, Thursday and Friday are likely to be the hottest days depending on location with high temperatures as much as 30 to 35 degrees above average for the inland valleys and lower elevations of the mountains. High temperatures will range from the 80s near the coast to the upper 90s to 104 for the Inland Empire with 108 to 112 for the lower deserts. The existing record highest temperature for the United States for March appears to be 108, reached three different times across two locations in south Texas.
.LONG TERM (Saturday through Tuesday)...
High pressure aloft and weak onshore flow will return for the weekend into early next week with cooling spread inland. Even with the cooling, high temperatures for next Tuesday will still be well above average, ranging from 5 to 10 degrees above average near the coast to 12 to 18 degrees above average for inland areas. High temperatures for next Tuesday will range from the lower to mid 70s near the coast to the mid 80s to lower 90s for the Inland Empire with the lower deserts around 100. Daily records for heat will likely continue be set early next week for some locations in the mounains, deserts, and inland valleys.
Night and morning low clouds will most likely return over the weekend for some coastal areas, possibly extending inland into the far western valleys at times during the weekend.
AVIATION
180930Z...Mostly clear skies and VFR conditions today and tonight.
Patchy fog over coastal waters tonight into Thursday, but unlikely to impact coastal airports.
MARINE
No hazardous marine conditions are expected through Sunday.
CLIMATE
For Tuesday, there were 13 daily records for record warm high temperatures that were broken with one tied, while 10 locations set daily records for warmest low temperature. The 100 degree high temperatures for Anaheim and Santa Ana were records for March with the prior earliest 100+ degree temperature for both locations in early April. The low temperature of 75 at Palm Springs was a March record with the prior earliest date for a low temperature so warm being April 21st.
The 500 mb height of 592 DM at NKX late Tuesday afternoon is a new record for March with records going back to 1956. The prior record of 590 DM occurred on March 21st. The prior earliest date for a 500 mb height of 592 DM or greater for NKX was on May 11th.
An increasing number of monthly heat records for March will be broken or tied the next few days for inland areas.
SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
SGX WATCHES/WARNINGS/ADVISORIES
CA...Heat Advisory until 8 PM PDT Friday for Orange County Coastal Areas-Orange County Inland Areas-San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Coastal Areas-San Diego County Valleys-Santa Ana Mountains and Foothills.
Heat Advisory from 10 AM this morning to 8 PM PDT Friday for Riverside County Mountains-San Bernardino County Mountains- San Diego County Mountains.
Extreme Heat Warning from 10 AM this morning to 8 PM PDT Saturday for Coachella Valley-San Diego County Deserts-San Gorgonio Pass near Banning.
PZ...None.
Area Forecast Discussion National Weather Service San Diego CA 304 AM PDT Wed Mar 18 2026
SYNOPSIS
Record strong high pressure for March over a broad area will continue to warm southwestern California the next few days with widespread record heat for March continuing into the weekend for inland areas. Through Friday, lowest daytime humidity for inland areas will range from around 10 percent for the deserts to 10 to 15 percent for the inland valleys. For the weekend into early next week, high pressure aloft will slowly weaken and weak onshore lower-level flow will return with cooling and higher coastal humidity spreading inland. Even with the cooling, high temperatures for next Tuesday will range from around 5 to 10 degrees above average near the coast to 12 to 18 degrees above average for inland areas. Widespread moderate or greater Heat Risk will continue into the weekend except near the immediate coast and in the higher elevations in the mountains.
DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
.SHORT TERM (Today through Friday)...
Widespread Moderate or greater Heat Risk will continue into the weekend except near the immediate coast and in the higher elevations in the mountains. For Thursday and Friday, some portions of the lower deserts, inland valleys, and inland Orange County will reach Major Heat Risk which can be dangerous to anyone without proper hydration or adequate cooling.
High pressure continues to strengthen across southwest California with record high pressure for March for a large area covering the southwest states and surrounding areas. There will continue to be widespread records tied or broken for record high temperatures and record warm low temperatures except near the beaches. There will also be a growing number of monthly records for heat for March that will also be tied or broken.
Outside of the immediate coast, Thursday and Friday are likely to be the hottest days depending on location with high temperatures as much as 30 to 35 degrees above average for the inland valleys and lower elevations of the mountains. High temperatures will range from the 80s near the coast to the upper 90s to 104 for the Inland Empire with 108 to 112 for the lower deserts. The existing record highest temperature for the United States for March appears to be 108, reached three different times across two locations in south Texas.
.LONG TERM (Saturday through Tuesday)...
High pressure aloft and weak onshore flow will return for the weekend into early next week with cooling spread inland. Even with the cooling, high temperatures for next Tuesday will still be well above average, ranging from 5 to 10 degrees above average near the coast to 12 to 18 degrees above average for inland areas. High temperatures for next Tuesday will range from the lower to mid 70s near the coast to the mid 80s to lower 90s for the Inland Empire with the lower deserts around 100. Daily records for heat will likely continue be set early next week for some locations in the mounains, deserts, and inland valleys.
Night and morning low clouds will most likely return over the weekend for some coastal areas, possibly extending inland into the far western valleys at times during the weekend.
AVIATION
180930Z...Mostly clear skies and VFR conditions today and tonight.
Patchy fog over coastal waters tonight into Thursday, but unlikely to impact coastal airports.
MARINE
No hazardous marine conditions are expected through Sunday.
CLIMATE
For Tuesday, there were 13 daily records for record warm high temperatures that were broken with one tied, while 10 locations set daily records for warmest low temperature. The 100 degree high temperatures for Anaheim and Santa Ana were records for March with the prior earliest 100+ degree temperature for both locations in early April. The low temperature of 75 at Palm Springs was a March record with the prior earliest date for a low temperature so warm being April 21st.
The 500 mb height of 592 DM at NKX late Tuesday afternoon is a new record for March with records going back to 1956. The prior record of 590 DM occurred on March 21st. The prior earliest date for a 500 mb height of 592 DM or greater for NKX was on May 11th.
An increasing number of monthly heat records for March will be broken or tied the next few days for inland areas.
SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
SGX WATCHES/WARNINGS/ADVISORIES
CA...Heat Advisory until 8 PM PDT Friday for Orange County Coastal Areas-Orange County Inland Areas-San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Coastal Areas-San Diego County Valleys-Santa Ana Mountains and Foothills.
Heat Advisory from 10 AM this morning to 8 PM PDT Friday for Riverside County Mountains-San Bernardino County Mountains- San Diego County Mountains.
Extreme Heat Warning from 10 AM this morning to 8 PM PDT Saturday for Coachella Valley-San Diego County Deserts-San Gorgonio Pass near Banning.
PZ...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| SDBC1 - 9410170 - San Diego, CA | 4 mi | 51 min | 66°F | 29.97 | ||||
| 46235 | 7 mi | 81 min | 61°F | 63°F | 2 ft | |||
| TIXC1 - Tijuana River Reserve, CA | 7 mi | 96 min | 0 | 57°F | 29.98 | 57°F | ||
| LJAC1 - 9410230 - La Jolla, CA | 15 mi | 57 min | 0G | 63°F | 29.97 | |||
| 46254 | 16 mi | 55 min | 64°F | 1 ft | ||||
| 46232 - Point Loma South, CA (191) | 19 mi | 55 min | 65°F | 4 ft | ||||
| 46258 | 21 mi | 55 min | 66°F | 3 ft | ||||
| 46266 | 22 mi | 55 min | 64°F | 2 ft | ||||
| 46225 - Torrey Pines Outer, CA (100) | 23 mi | 55 min | 64°F | 3 ft | ||||
| 46274 | 29 mi | 55 min | 64°F | 2 ft | ||||
| 46224 - Oceanside Offshore, CA (045) | 40 mi | 55 min | 64°F | 4 ft | ||||
| 46275 | 47 mi | 51 min | 60°F | 63°F | 3 ft |
Wind History for La Jolla, CA
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KNZY NORTH ISLAND NAS /HALSEY FIELD/,CA | 5 sm | 29 min | calm | 8 sm | A Few Clouds | 61°F | 59°F | 94% | 29.97 | |
| KSAN SAN DIEGO INTL,CA | 6 sm | 30 min | calm | 10 sm | A Few Clouds | 61°F | 55°F | 82% | 29.99 | |
| KNRS IMPERIAL BEACH NOLF (REAM FLD),CA | 7 sm | 28 min | ENE 09 | 10 sm | A Few Clouds | 61°F | 55°F | 82% | 29.98 | |
| KMYF MONTGOMERYGIBBS EXECUTIVE,CA | 10 sm | 28 min | ENE 04 | 10 sm | Clear | 61°F | 48°F | 63% | 29.98 | |
| KSDM BROWN FIELD MUNI,CA | 10 sm | 28 min | SE 06 | 10 sm | Clear | 59°F | 43°F | 55% | 29.99 | |
| KNKX MIRAMAR MCAS (JOE FOSS FLD),CA | 14 sm | 26 min | ENE 09 | 7 sm | Clear | 61°F | 46°F | 59% | 29.98 | |
| KSEE GILLESPIE FIELD,CA | 14 sm | 34 min | calm | 10 sm | Clear | 57°F | 48°F | 72% | 30.01 |
Link to 1 hour of 5 minute data for KNZY
Terminal Aerodrome Forecast (TAF) for KNZY
Wind History Graph: NZY
(wind in knots)
GEOS Local Image of Southwest
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San Diego, CA,
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