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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:   Thursday, May 21, 2026 1:57 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 Friday 5/22 Holding ENE 20+ Northeast windswell 4.0 ft @ 8 secs 3.0 ft 55 degrees Saturday 5/23 Up barely ENE 20+ Northeast windswell 4.3 ft @ 8 secs 3.5 ft 50 degrees Sunday 5/24 Holding ENE 20+ Northeast windswell 4.0 ft @ 8-9 secs 3.0 ft 45 degrees Monday 5/25 Holding ENE 20+ Northeast windswell 4.0 ft @ 8 secs 3.0 ft 45 degrees Tuesday 5/26 Down some ENE 20+ Northeast windswell 3.6 ft @ 7-8 secs 2.5 ft 45 degrees Extended Outlook Up slightly --- A gale tracked east south of the East Aleutians Wed-Thurs (5/21) with 25-28 ft seas aimed east. No swell expected to reach Oahu given the steep north angle. Another gale is forecast tracking east from the dateline to Northwest Gulf Sun-Tues (5/26) with up to 39 ft seas aimed east. --- --- 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 Friday 5/22 Up slightly ENE 20 Background southern hemi swell 1.4 ft @ 14-15 secs 2.0 ft 195 degrees Saturday 5/23 Up some ENE 20 Background southern hemi swell building to 1.5 ft @ 15-16 secs later 2.0-2.5 ft 185 degrees Sunday 5/24 Down slightly ENE 20 Background southern hemi swell 1.8 ft @ 14 secs early 2.0-2.5 ft 185 degrees Monday 5/25 Down some ENE 20 Background southern hemi swell fading from 1.4 ft @ 12-13 secs 1.5 ft 185 degrees Tuesday 5/26 Down ENE 20 No swell of interest forecast 2 ft or less --- Extended Outlook Up some --- Background swell from previous fetch is to continue. A broad gale is forecast developing under New Zealand tracking northeast Fri-Sun (5/25) with up to 37 ft seas aimed northeast. Something to monitor. --- --- 10525

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