San Clemente Island CA to Guadalupe Island from 60 NM offshore west to 120W Offshore Forecast
| Today...Nw Winds 5 To 15 Kt. Seas 4 To 6 Ft. |
| Tonight...Nw Winds 10 To 15 Kt. Seas 4 To 6 Ft. |
| Thu...Nw Winds 10 To 15 Kt. Seas 4 To 6 Ft. |
| Thu Night...Nw Winds 10 To 15 Kt. Seas 5 To 6 Ft. |
| Fri...Nw Winds 10 To 15 Kt, Becoming W. Seas 5 To 6 Ft. |
| Fri Night...W Winds 5 To 10 Kt, Becoming Variable. Seas 5 To 7 Ft. |
| Sat...Variable Winds Less Than 10 Kt. Seas 6 To 8 Ft. |
| Sat Night...Variable Winds Less Than 5 Kt. Seas 6 To 9 Ft. |
| Sun...Variable Winds Less Than 5 Kt. Seas 7 To 9 Ft. |
| Sun Night...Variable Winds Less Than 5 Kt, Becoming N. Seas 7 To 9 Ft. |
| Area Forecast Discussion National Weather Service San Diego CA 936am PDT Wednesday September 24 2025 Synopsis There will be a cooling trend through Friday and Saturday with high temperatures cooling to around 5 degrees below average for inland areas. This will be followed by a slower warming trend through Wednesday of next week with high temperatures warming to slightly below average. A slow moving low pressure system from the northwest will bring a chance of showers and thunderstorms for Friday and Saturday, possibly lingering on Sunday during the afternoon for the mountains and deserts. The chances are greatest for the mountains and deserts and greatest on Saturday afternoon. For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties .Morning The area of low pressure to the north has mostly cleared the area, providing mostly sunny skies. Low clouds off the coast will continue to dissipate over the next few hours. Since higher clouds are departing from this system, the marine layer will be able to build in deeper tonight. This will lead to areas of low clouds and fog within 20 miles of the coast tonight into Thursday morning. We continue to monitor the area of low pressure moving back southward into the weekend with cooler weather and chances for more rainfall. .Previous Discussion (323am Wednesday)... Short Term - Today Through Friday A slow-moving closed low pressure system will move to near the Bay Area tonight, then move into southern California on Thursday night, and then move northeast and weaken for Saturday night and Sunday. There will be a cooling trend for today through Friday for the coast and valleys and into Saturday for the mountains and deserts with high temperatures on Saturday around 5 degrees below average for inland areas. High temperatures on Saturday will range from the lower 70s near the coast to around 80 for the Inland Empire with the upper 80s for the lower deserts. Dry weather will continue for today and Thursday with a chance of showers and thunderstorms for Friday afternoon and early evening. The greater chances are for the mountains and deserts with chances for measurable rainfall of 15 to 25 percent. .LONG TERM (Saturday through Wednesday)... Chances for showers and thunderstorms will increase on Saturday, to as much as 40 to 55 percent for the mountains and deserts with the greatest chances on Saturday afternoon. There is a slight chance for showers and thunderstorms for the mountains and deserts on Sunday, dependent on how long the low pressure system lingers over southern California before moving to the northeast and weakening. This will be followed by drying for early next week. There will be a slower warming trend for early next week with high temperatures for Wednesday of next week a few degrees below average for inland areas. Marine No hazardous marine conditions are expected through Sunday. However, stronger northwest winds with gusts approaching 20 knots at times near San Clemente Island are expected in the afternoons and evenings today and Thursday. Beaches Long period southerly swell from Hurricane Narda will reach the coastal waters this weekend. Swell of 5-6 feet with periods 14-15 seconds will produce high surf for southern facing beaches from late Saturday through early next week. Elevated surf and strong rip currents can be expected along the entire coastline. More details in the coming days. Skywarn Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions. NOAA San Diego CA Office: Watches - Warnings - Advisories CA...None. PZ...None. |
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