San Clemente Island CA to Guadalupe Island from 60 NM offshore west to 120W Offshore Forecast
| Tonight...Nw Winds 10 To 15 Kt. Seas 4 To 5 Ft. |
| Tue...Nw Winds 5 To 15 Kt. Seas 3 To 5 Ft. |
| Tue Night...Nw Winds 5 To 15 Kt, Becoming N To Nw 10 To 20 Kt. Seas 4 To 7 Ft. |
| Wed...Nw Winds 10 To 20 Kt, Becoming N. Seas 6 To 10 Ft. |
| Wed Night...Nw Winds 10 To 20 Kt. Seas 6 To 9 Ft. |
| Thu...Nw Winds 10 To 20 Kt. Seas 6 To 9 Ft. |
| Thu Night...N Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt. Seas 6 To 8 Ft. |
| Fri...N Winds 5 To 15 Kt, Becoming N To Nw 10 To 20 Kt. Seas 5 To 8 Ft. |
| Fri Night...N To Nw Winds 10 To 20 Kt, Becoming 10 To 15 Kt. Seas 5 To 7 Ft. |
| Sat...N To Nw Winds 10 To 15 Kt. Seas 5 To 7 Ft. |
| Sat Night...Nw Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt. Seas 5 To 7 Ft. |
| Area Forecast Discussion National Weather Service San Diego CA 159pm PST Monday Dec 15 2025 Synopsis High pressure and weak offshore flow will continue to bring fair weather and above normal temperatures through Friday, with cooler weather this weekend. Coastal low clouds and fog will continue each night and morning, but less inland coverage Tuesday through Thursday and more coverage Friday through the weekend. For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties .SHORT TERM... Low clouds and fog have cleared from all inland areas except for the beaches this afternoon. Stratus is still widespread over the marine waters, so patchy low clouds and fog are likely to move ashore fairly early today (late afternoon into the early evening), similar to yesterday. Visibilities will be quite low as the marine layer settles and moves about 10 miles inland, especially Tuesday morning, with areas of dense fog that could lead to travel difficulties. Weak offshore winds will result in some patchiness overnight, and the marine layer will back off to the beaches earlier than today, around mid-morning. Lingering foggy conditions for the beaches and parts of Orange County looks likely again through later morning Tuesday, though. Locally breezy offshore winds in the coastal foothills and south of the Cajon Pass/west of the Banning/Gorgonio Pass will continue through Tuesday morning. Peak gusts are generally 20-30 mph, with occasional/local gusts around 40 mph. Another warm day is in store for Tuesday afternoon as the east Pacific high pressure edges into the area, with high temperatures 1-5 degrees warmer than today. With persistent high pressure aloft, the marine layer will continue to be shallow and limited to coastal areas Tues-Wed. Onshore flow resumes Wednesday, which will cool things down a tad from Tuesday for most areas west of the mountains. Long Term Temperatures continue to oscillate for the late week as conditions flip from weak onshore to weak offshore again and ridging amplifies slightly Thursday, which will be another warm day similar to Tuesday, with high temperatures as much as 10-20 degrees above average for mid December. The flow becomes onshore again Friday into the weekend as the ridge flattens out into zonal flow over most of the western U.S. This will lead to a gradual cooling trend Friday through the weekend, though temperatures will still remain above average, which seems to be the song of the season recently. Temperatures may rise again early next week as a ridge builds over a large part of the southern U.S. Towards mid to late week a trough is likely to move south down the west coast, giving us a chance for precipitation towards Christmas Eve/Christmas, though details are fuzzy this far out. Marine Areas of fog will return to coastal waters this evening and last through Tuesday morning. Intermittent visibility reductions below 1 nautical mile expected. Otherwise, no hazardous marine conditions are expected through Friday. NOAA San Diego CA Office: Watches - Warnings - Advisories CA...None. PZ...None. |
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