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Surf Forecasts:
Graters surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Tuesday 28 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Graters surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Graters sea temperature is
24.5° C
(Which is normal for this time of year)How big are the waves at Graters today?
The current surf forecast for Graters at 6AM is: 0.6m 10s primary swell from a North-northwest direction (forecast issued at 01:00am April 28). An open ocean swell of 0.4m 13s is not directed at the surf break, a second open ocean swell of 1.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 1.5ft (0.4m) | 15s |
| Afternoon (28 Apr) | 2ft (0.6m) | 14s |
| Evening (28 Apr) | 2.5ft (0.7m) | 13s |
Table - waves today at Graters. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 23°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NW 10 | NNW 10 | NW 15 | NNW 10 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NNW 14 | NW 12 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 13 | NNW 13 | |
84 | 69 | 68 | 74 | 119 | 113 | 171 | 235 | 221 | 248 | 200 | 132 | 134 | 282 | 273 | 301 | 287 | 330 | 319 | 353 | 341 | 341 | 444 | 444 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 00:14AM0.56m | 1:40PM0.62m | 00:36AM0.52m | 2:11PM0.68m | 00:56AM0.48m | 2:42PM0.72m | ||||||||||||||||||
Low Tide | 6:50AM0.13m | 7:32PM0.33m | 7:05AM0.10m | 8:23PM0.33m | 7:22AM0.08m | 9:10PM0.34m | ||||||||||||||||||
 | |  | | | | |  | | | | | | | | | | | | | | | | | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:57 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
21 | 21 | 22 | 23 | 23 | 23 | 22 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 13 | NNW 13 |
 kJ | 84 | 69 | 68 | 68 | 65 | 113 | 171 | 235 | 221 | 248 | 200 | 132 | 134 | 282 | 273 | 301 | 287 | 330 | 319 | 353 | 341 | 341 | 444 | 444 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | NW 15 | NW 14 | NW 14 | NW 10 | NW 10 | NE 8 | SSW 12 | NNE 10 | NW 14 | NNW 14 | NNW 14 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | SW 11 | SW 11 | SW 11 | S 16 | NE 10 | NE 10 |
| kJ | 43 | 42 | 55 | 74 | 119 | 47 | 46 | 17 | 14 | 9 | 52 | 129 | 113 | 14 | 22 | 21 | 20 | 18 | 5 | 5 | 5 | 5 | 16 | 16 |
Swell 3 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | SSW 12 | S 15 | SSW 12 | NNE 10 | NE 10 | NE 10 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 11 | S 12 | S 12 | S 16 | SW 11 | NNE 8 | SSW 16 |
| kJ | 18 | 18 | 17 | 18 | 18 | 17 | 17 | 14 | 4 | 14 | 9 | 15 | 15 | 12 | 12 | 5 | 5 | 5 | 3 | 3 | 5 | 5 | 7 | 24 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 204 | 173 | 139 | 139 | 139 | 118 | 128 | 183 | 222 | 215 | 183 | 173 | 145 | 145 | 137 | 106 | 126 | 165 | 219 | 257 | 265 | 265 | 227 | 268 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 11 | 32 | 32 | 11 | 11 | 11 | 32 | 32 | 37 | 40 | 11 | 11 | 11 | 32 | 32 | 32 | 35 | 35 | 13 | 32 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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