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Stormsurf Mobile App Create Your Own Surf Forecast Swell Calculator Swell Decay Tables Sea Height Tables Swell Category Table Convert from GMT:   0Z 1Z 2Z 3Z 4Z 5Z 6Z 7Z 8Z 9Z 10Z 11Z 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z  to timezone: IDLE/NZST AEDT GST/AEST --> JST/AWDT CCT/AWST WAST/CXT --> MSD BT/MSK EET/CEST CET/SWT GMT/UTC WAT AT ADT AST/EDT EST/CDT CST/MDT MST/PDT PST/YDT YST/HADT AHST/HAST NT IDLW 7:00 ---

QuikCAST Surf Forecast - Southern California 5 Day Surf Forecast Forecast Updated:   Tuesday, August 19, 2025 2:10 PM Surf Scale: 3 ft = waist high, 4 ft = chest high, 5 ft = head high, 10 ft =double overhead Swell Direction is direction swell is coming from. 90°=East, 180°=South, 270°=West, 360-0 = North Southern California Surf Forecast (Centered on Dana Point) Day Trend Wind (kts) Details (Swell Number, Swell Size & Period, Arrival Time and Profile) Waves (Set wave max face height) Swell Direction Wednesday 8/20 Up slightly SW 1-5 early Small New Zealand Swell 1.6 ft @ 15-16 secs later 2.5 ft 212 degrees Thursday 8/21 Holding SW 1-5 early Small New Zealand swell holding at 1.8 ft @ 14-15 secs 2.5 ft 205 degrees Friday 8/22 Down some SW 1-5 early Small New Zealand swell fading from 1.9 ft @ 13-14 secs Central South Pacific swell building to 1.1 ft @ 16 secs later 2.5 ft 1.5-2.0 ft 200 degrees 205 degrees Saturday 8/23 Holding W 1-5 early Central South Pacific swell holding at 1.9 ft @ 14-15 secs 2.5-3.0 ft 205 degrees Sunday 8/24 Holding W 1-5 early Central South Pacific swell fading from 1.8 ft @ 14 secs New Zealand swell building to 1.0 ft @ 20-21 secs later 2.5 ft 2.0 ft 205 degrees 212 degrees Extended Outlook Up some maybe --- A weak gale developed under New Zealand Fri (8/8) with seas to 26 ft aimed northeast. Swell continue Wed (8/20). A weak gale developed over the upper reaches of the Central South Pacific on Fri (8/15) with up to 34 ft seas aimed east. Swell arrival on Fri (8/22). A stronger gale developed south of the Tasman Sea Thurs-Fri (8/15) with up to 45 ft seas aimed east-southeast then tracking east into Sun (8/17) with seas fading from 33 ft. Swell arrival on Sun (8/24). Possibly another gale is to develop under New Zealand Thurs (8/21) pushing east with 37 ft seas fading to 26 ft aimed northeast. Remnants of that system to rebuilding in the SE Pacific Sat-Sun ( 8/24) with up to 36 ft seas aimed northeast. After that things go quiet in the Southern Hemi. --- --- Surf Height Animation: Northeast Pacific - South CA Wind Animations: US West Coast - South CA Local Model: Surf - Wind 450764

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