Active MJO Pushes East - What Effect Will Coming Inactive Phase Have? - Video Forecast HERE (12/7/25)

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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:   Sunday, December 7, 2025 1:42 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 Monday 12/8 Down some E 10+ Background swell fading from 2.1 ft @ 10-11 secs 2.0 ft 335 degrees Tuesday 12/9 Up some E 5+ Kuril swell building to 3.6 ft @ 13-14 secs later 4.5 ft 315 degrees Wednesday 12/10 Up some SW 10 later New Dateline swell 5.7 ft @ 15-16 secs early 8.5 ft 325 degrees Thursday 12/11 Down some N 5+ later Dateline swell 5.2 ft @ 12-13 secs late AM 6.5 ft 325 degrees Friday 12/12 Down some NE 5+ Dateline swell fading from 4.3 ft @ 11-12 secs early 5.0 ft 330 degrees Extended Outlook Down --- A gale developed just off the Kurils Thurs (12/4) producing up to 25 ft seas aimed east targeting Hawaii. Swell arrival on Tues (12/9). A small gale developed and is tracking east from the dateline to the Gulf Sat-Tues (12/9) producing 26-27 ft seas aimed east. Swell arrival on Wed (12/10). Nothing else meaningful to follow with the Inactive Phase of the MJO in control. --- --- 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 Monday 12/8 Down ENE 10+ No swell of interest forecast 2 ft or less --- Tuesday 12/9 Down ENE 5 No swell of interest forecast 2 ft or less --- Wednesday 12/10 Down SW 5+ No swell of interest forecast 2 ft or less --- Thursday 12/11 Down SW 5+ No swell of interest forecast 2 ft or less --- Friday 12/12 Down NE 5+ No swell of interest forecast 2 ft or less --- Extended Outlook Down --- No swell producing weather systems of interest are forecast. --- --- 1443

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