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Surf Forecasts:
Makapu'u surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
Makapu'u surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Makapu'u sea temperature is
25.4° C
(Which is normal for this time of year)How big are the waves at Makapu'u today?
The current surf forecast for Makapu'u at 10AM is: 1.9m 8s primary swell from a East-northeast direction and 0.7m 14s secondary swell from a South-southwest direction, 0.6m 19s secondary swell from a South-southwest direction (forecast issued at 07:00am May 18). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 6ft (1.8m) | 8s |
| Afternoon (18 May) | 6ft (1.9m) | 8s |
| Evening (18 May) | 5.5ft (1.7m) | 8s |
Table - waves today at Makapu'u. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 24°C on Mon morning, min 23°C on Tue night). Mainly strong winds. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 15 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
473 | 437 | 449 | 449 | 394 | 353 | 341 | 302 | 295 | 287 | 280 | 287 | 246 | 365 | 394 | 449 | 497 | 533 | 585 | 599 | 807 | 889 | 939 | 984 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | |
High Tide | 5:08PM0.69m | 2:17AM0.25m | 6:04PM0.66m | 7:03PM0.62m | ||||||||||||||||||||
Low Tide | 9:03AM-0.17m | 00:21AM0.21m | 9:49AM-0.14m | 10:37AM-0.08m | ||||||||||||||||||||
 |  | |  | | | | | |  | | | | | | | | | | | |  | | | |
 | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | 5:50 |
 | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — | 7:04 |
— | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 |
23 | 24 | 21 | 21 | 21 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 19 | 20 | 19 | 18 | 18 | 18 | 18 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | ENE 8 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
 kJ | 183 | 180 | 180 | 183 | 168 | 163 | 161 | 161 | 295 | 175 | 178 | 178 | 246 | 249 | 167 | 172 | 167 | 163 | 163 | 158 | 107 | 105 | 101 | 68 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSW 19 | SSW 19 | SSW 19 | SSW 16 | SSE 10 | SSW 16 | SSW 14 | SSW 18 | SSW 18 | NNW 12 | E 9 | NNW 11 | NNW 11 | NNW 11 | NNW 12 | NNW 12 | NNW 10 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 10 |
| kJ | 15 | 15 | 248 | 251 | 214 | 51 | 19 | 91 | 166 | 207 | 207 | 54 | 39 | 46 | 47 | 45 | 77 | 78 | 62 | 64 | 65 | 45 | 44 | 43 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 6 | SSE 10 | SSW 16 | NW 12 | NW 12 | NW 12 | SSW 17 | NW 11 | NNW 11 | SSW 18 | NNW 12 | SSE 10 | SSE 9 | NNW 12 | SW 16 | SW 16 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
| kJ | 20 | 20 | 8 | 33 | 50 | 23 | 37 | 35 | 96 | 31 | 51 | 102 | 54 | 18 | 17 | 30 | 41 | 41 | 63 | 62 | 60 | 61 | 100 | 91 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 473 | 437 | 449 | 449 | 394 | 353 | 341 | 302 | — | 287 | 280 | 287 | 218 | 365 | 394 | 449 | 497 | 533 | 585 | 599 | 807 | 889 | 939 | 984 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 19 | 18 | 49 | 49 | 55 | 49 | 22 | 49 | 49 | 22 | 49 | 49 | 55 | 49 | 50 | 49 | 49 | 55 | 56 | 61 | 58 | 58 | 63 | 63 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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