Swell of the Summer Hits Hawaii! - Video Forecast HERE (8/10/25) New! Swell Period Hindcasts (On the Wave Model Page)

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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 - Hawaii 5 Day Surf Forecast Forecast Updated:   Saturday, August 9, 2025 12:44 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 Forecast does NOT account for enhancing bathymetry (i.e the 'reef effect') common at best breaks. For top spots with swell period 14 +secs, multiply surf size X 1.25-1.5 with peaks X 2 (or consider the stated size 'Hawaiian Scale'). Hawaiian North Shore Surf Forecast (Valid for the North and East Shores of Oahu) Day Trend Wind (kts) Details (Swell Number, Swell Size & Period, Arrival Time and Profile) Waves (Set wave max face height) Swell Direction Sunday 8/10 Down E 5+ No swell of interest forecast 2 ft or less --- Monday 8/11 Down ESE 10+ No swell of interest forecast 2 ft or less --- Tuesday 8/12 Down E 15 No swell of interest forecast 2 ft or less --- Wednesday 8/13 Down ENE 10+ No swell of interest forecast 2 ft or less --- Thursday 8/14 Down E 10 No swell of interest forecast 2 ft or less --- Extended Outlook Down --- No swell producing weather systems are forecast. --- --- Surf Height Animation: Northeast Pacific - Hawaii Wind Animations: Northeast Pacific - Hawaii - Hawaii hires Local Model: Surf - Wind Hawaiian South Shore Surf Forecast (Centered on the South Shore of Oahu) Day Trend Wind (kts) Details (Swell Number, Swell Size & Period, Arrival Time and Profile) Waves (Set wave max face height) Swell Direction Sunday 8/10 Down some ENE 1-5 Complex New Zealand Swell #1S fading from 3.9 ft @ 14-15 secs early 5.5-6.0 ft 191 degrees Monday 8/11 Down some SE 1-5 early Complex New Zealand Swell #1S fading from 3.2 ft @ 14 secs early 4.5 ft 190 degrees Tuesday 8/12 Down some ENE 15+ Complex New Zealand Swell #1S fading from 2.6 ft @ 13-14 secs early 3.5 ft 187 degrees Wednesday 8/13 Down some ENE 15 early Complex New Zealand Swell #1S fading from 1.9 ft @ 12-13 secs early 2.0-2.5 ft 185 degrees Thursday 8/14 Down some ENE 10+ Complex New Zealand Swell #1S fading from 1.5 ft @ 12 secs early 1.5-2.0 ft 183 degrees Extended Outlook Up slightly --- A storm passed under New Zealand Thurs-Fri (8/1) with up to 40 ft seas aimed east. Another tracked east under Tasmania Thurs-Fri (8/1) with 45 ft seas aimed east. And another built over the South Central Pacific (again) Sun-Tues (8/5) with 31 ft seas aimed due north. All 3 overlapping southwest swells from this complex gale pattern were peaking on Sat (8/9) and to be fading through Thurs (8/14). A weak gale is developed under New Zealand Fri (8/8) with seas to 26 ft aimed northeast. Swell arrival on Fri (8/15). --- --- 148461

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