Hurricane Erin Provides Hope for the US East Coast! - Video Forecast HERE (8/17/25)

Buoys | Buoy Forecast | Bulletins | Models: Wave - Weather - Surf - Altimetry - Snow | Pacific Forecast | QuikCAST | El Nino | Tutorials | Great Circles | Video

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 - North California 5 Day Surf Forecast Forecast Updated:   Tuesday, August 19, 2025 2:09 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 North California Surf Forecast (Centered on San Francisco) 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 some NW 5+ early Local northwest windswell 3.9 ft @ 6-7 secs later Small New Zealand swell 1.8 ft @ 14-15 secs 2.0 ft 2.5 ft 310 degrees 210 degrees Thursday 8/21 Holding NW 5+ early Local northwest windswell 5.5 ft @ 8 secs early Small New Zealand swell holding at 1.8 ft @ 14-15 secs 4.0 ft 2.5 ft 310 degrees 205 degrees Friday 8/22 Up slightly NW 5+ early Local northwest windswell 4.5 ft @ 8 secs Small New Zealand swell fading from 1.8 ft @ 13-14 secs Central South Pacific swell building to 0.9 ft @ 16 secs later 3.0 ft 2.5 ft 1.5 ft 310 degrees 200 degrees 195-200 degrees Saturday 8/23 Holding NW 5+ early Local northwest windswell 3.1 ft @ 7 secs Central South Pacific swell holding at 1.9 ft @ 14-15 secs 2.0 ft 2.5 ft 310 degrees 200 degrees Sunday 8/24 Holding NW 5+ early Local northwest windswell 3.2 ft @ 7-8 secs Central South Pacific swell fading from 1.7 ft @ 13-14 secs New Zealand swell building to 0.9 ft @ 20-21 secs later 2.0 ft 2.0-2.5 ft 1.5-2.0 ft 310 degrees 200 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 - North CA - Central CA Wind Animations: US West Coast - North CA - Central CA Local Model: Surf - Wind 528984

.

Contact | About | Disclaimer | Privacy Advertise/Content | Links Copyright © 2025 STORMSURF - All Rights Reserved This page cannot be duplicated, reused or framed in another window without express written permission. But links are always welcome. Buoys | Buoy Forecast | Bulletins | Models: Wave - Weather - Surf - Altimetry - Snow | Pacific Forecast | QuikCAST | El Nino | Tutorials | Great Circles | Calculator