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Keaulanas Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Keaulanas surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Wednesday 20 May 2026 HSTForecast update in hr min s Forecast update imminent
Keaulanas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keaulanas sea temperature is
25.8° C
(Which is slightly warmer than usual)How big are the waves at Keaulanas today?
The current surf forecast for Keaulanas at 10AM is: 0.6m 14s primary swell from a South-southwest direction and 0.6m 10s secondary swell from a North-northwest direction (forecast issued at 07:00am May 20). An open ocean swell of 1.1m 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 (20 May) | 2ft (0.6m) | 14s |
| Afternoon (20 May) | 2ft (0.6m) | 14s |
| Evening (20 May) | 1.5ft (0.5m) | 14s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 23°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 17 | S 16 | S 16 | S 16 | SSW 16 | S 16 | SSW 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 18 | S 18 | S 18 | S 17 | S 16 | |
233 | 183 | 163 | 158 | 152 | 145 | 101 | 101 | 135 | 134 | 134 | 87 | 127 | 174 | 157 | 157 | 157 | 110 | 109 | 103 | 98 | 97 | 143 | 188 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | off | off | off | off | off | off | off | |
High Tide | 6:18AM0.19m | 7:28PM0.72m | 8:01AM0.20m | 8:22PM0.66m | 10:01AM0.25m | 9:15PM0.60m | ||||||||||||||||||
Low Tide | 2:45AM0.14m | 11:14AM0.07m | 3:42AM0.13m | 12:10PM0.14m | 4:27AM0.12m | 1:30PM0.22m | ||||||||||||||||||
 |  |  | | | | |  | | | | | | | | | | | | | | | | | |
 | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | 5:50 |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 23 | 23 | 23 |
24 | 23 | 23 | 22 | 22 | 20 | 20 | 20 | 20 | 19 | 20 | 20 | 20 | 19 | 19 | 19 | 20 | 19 | 20 | 21 | 20 | 19 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | NNW 10 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 16 | S 16 | SSW 16 | S 16 | SSW 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | NW 11 | NW 11 | S 16 |
 kJ | 233 | 183 | 163 | 95 | 152 | 145 | 101 | 101 | 102 | 134 | 134 | 87 | 127 | 174 | 157 | 157 | 157 | 110 | 109 | 103 | 94 | 57 | 57 | 188 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | SSW 14 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | S 16 | SSW 13 | SSW 13 | SSW 14 | NW 10 | NNW 10 | NW 10 | SE 9 | NW 10 | SSE 12 | SSE 12 | NNW 11 | NW 11 | S 14 | S 17 | NW 11 |
| kJ | 92 | 67 | 69 | 158 | 75 | 64 | 63 | 41 | 135 | 69 | 60 | 66 | 24 | 18 | 23 | 38 | 25 | 58 | 57 | 45 | 57 | 93 | 143 | 56 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | NNW 12 | SSW 18 | SSW 18 | SSW 18 | S 18 | SSW 17 | SSW 17 | NNW 10 | NNW 10 | NW 10 | NW 10 | SSW 12 | SSE 13 | SSE 13 | SE 13 | SE 12 | NW 10 | NNW 10 | S 18 | S 18 | S 18 | SSW 13 | SSW 13 |
| kJ | 17 | 28 | 64 | 63 | 62 | 56 | 100 | 93 | 39 | 38 | 24 | 24 | 28 | 33 | 33 | 42 | 39 | 25 | 41 | 98 | 98 | 97 | 60 | 60 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 5 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 8 | NE 8 |
| kJ | 101 | 103 | 139 | 76 | 178 | 175 | 202 | 220 | 220 | 220 | 285 | 335 | 362 | 348 | 356 | 284 | 289 | 241 | 276 | 239 | 269 | 336 | 300 | 291 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 5 | 9 | 13 | 14 | 16 | 160 | 160 | 161 | 161 | 164 | 160 | 163 | 289 | 162 | 13 | 11 | 11 | 167 | 163 | 170 | 167 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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