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Surf Forecasts:
Ewa Beach Park surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
Ewa Beach Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ewa Beach Park sea temperature is
25.5° C
(Which is normal for this time of year)How big are the waves at Ewa Beach Park today?
The current surf forecast for Ewa Beach Park at 7AM is: 0.8m 14s primary swell from a South-southwest direction and 1.3m 8s secondary swell from a East direction (forecast issued at 01:00am May 18). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.8m) | 14s |
| Afternoon (18 May) | 2ft (0.6m) | 19s |
| Evening (18 May) | 2.5ft (0.8m) | 14s |
Table - waves today at Ewa Beach Park. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 23°C on Wed night). Mainly strong winds. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSW 14 | SSW 14 | SSW 14 | SSW 19 | SSW 19 | ENE 8 | SSW 14 | ENE 8 | SSW 14 | SSW 14 | SSW 18 | SSW 18 | ENE 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | ENE 8 | SSW 14 | E 7 | E 8 | ENE 8 | E 8 | E 8 | |
236 | 233 | 233 | 350 | 251 | 264 | 223 | 266 | 161 | 163 | 273 | 273 | 246 | 246 | 251 | 246 | 252 | 361 | 264 | 355 | 464 | 448 | 450 | 500 | |
Wind (km/h) | ||||||||||||||||||||||||
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High Tide | 4:15AM0.26m | 5:40PM0.85m | 5:08AM0.24m | 6:32PM0.81m | 6:16AM0.23m | 7:25PM0.76m | ||||||||||||||||||
Low Tide | 00:19AM0.16m | 9:52AM-0.02m | 1:21AM0.16m | 10:35AM0.02m | 2:25AM0.16m | 11:23AM0.07m | ||||||||||||||||||
 |  |  | |  | | | |  | | | | | | | | | | | | | | | | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:05 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 23 | 23 |
25 | 24 | 24 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 24 | 22 | 22 | 22 | 22 | 23 | 21 | 22 | 20 | 20 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | SSW 14 | SSW 14 | SSW 14 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | E 8 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 |
 kJ | 195 | 223 | 223 | 223 | 229 | 168 | 210 | 190 | 157 | 130 | 125 | 127 | 153 | 246 | 249 | 246 | 252 | 228 | 236 | 163 | 158 | 149 | 145 | 101 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 19 | SSW 19 | SSE 7 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSE 7 | SSE 9 | SSE 9 | SSE 9 | SSW 15 | NW 10 | NW 10 | SSW 18 | NW 10 | SSW 18 | SSW 17 |
| kJ | 236 | 233 | 233 | 233 | 251 | 214 | 18 | 207 | 161 | 163 | 226 | 229 | 178 | 17 | 35 | 35 | 34 | 167 | 25 | 25 | 62 | 24 | 104 | 99 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSW 19 | SSE 7 | SSE 7 | SSW 16 | SSE 7 | SSW 17 | SSE 10 | SSW 18 | SSW 18 | SSW 18 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | SE 9 | SSW 18 | NW 10 | S 18 | SSE 9 | SSE 14 |
| kJ | 19 | 19 | 18 | 332 | 18 | 18 | 51 | 18 | 92 | 35 | 273 | 273 | 174 | 28 | 28 | 28 | 27 | 26 | 21 | 63 | 25 | 56 | 16 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 8 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 7 | E 8 | ENE 8 | E 8 | E 8 |
| kJ | — | — | — | 350 | 223 | 264 | 223 | 266 | 138 | — | — | 212 | 246 | 192 | 251 | 218 | 229 | 361 | 264 | 355 | 464 | 448 | 450 | 500 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 13 | 13 | 14 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 36 | 14 | 14 | 14 | 14 | 22 | 23 | 28 | 29 | 28 | 32 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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