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Surf Forecasts:
The Cove surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
The Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Cove sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at The Cove today?
The current surf forecast for The Cove at 1AM is: 1.5m 8s primary swell from a East-northeast direction and 1.2m 8s secondary swell from a East direction, 0.7m 14s secondary swell from a South-southwest direction (forecast issued at 07:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 2.5ft (0.7m) | 18s |
| Afternoon (19 May) | 2.5ft (0.8m) | 14s |
| Evening (19 May) | 2.5ft (0.8m) | 15s |
Table - waves today at The Cove. (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. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 8 | SSW 14 | ENE 8 | ENE 8 | SSW 14 | SSW 18 | SSW 18 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | |
301 | 251 | 306 | 259 | 163 | 273 | 273 | 178 | 246 | 249 | 251 | 257 | 270 | 374 | 407 | 458 | 439 | 522 | 512 | 559 | 643 | 720 | 727 | 836 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 5:40PM0.85m | 5:08AM0.24m | 6:32PM0.81m | 6:16AM0.23m | 7:25PM0.76m | 7:50AM0.24m | ||||||||||||||||||
Low Tide | 1:21AM0.16m | 10:35AM0.02m | 2:25AM0.16m | 11:23AM0.07m | 3:25AM0.15m | 12:20PM0.15m | ||||||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — | — |
 | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | 7:05 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 25 |
22 | 22 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 22 | 22 | 22 | 23 | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 16 | SSW 13 | S 16 | S 16 | S 16 |
 kJ | 168 | 210 | 186 | 157 | 153 | 153 | 127 | 178 | 246 | 249 | 246 | 252 | 167 | 236 | 163 | 158 | 149 | 105 | 101 | 137 | 101 | 134 | 134 | 131 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSE 7 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSE 9 | SSE 9 | NW 10 | SSE 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | SSW 18 | SSW 17 | SSW 13 | S 16 | SSW 13 | SSW 13 | SSW 12 |
| kJ | 212 | 9 | 207 | 161 | 163 | 226 | 229 | 174 | 35 | 35 | 28 | 35 | 26 | 25 | 25 | 25 | 24 | 104 | 99 | 57 | 135 | 101 | 70 | 30 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SSW 16 | SSE 7 | SSE 10 | SSE 10 | SSW 18 | SSW 18 | SSE 6 | NW 10 | NW 10 | SSE 6 | NW 10 | SSE 9 | SSE 9 | SSW 18 | SSW 18 | S 18 | SSE 9 | SSE 9 | SSE 14 | SSE 9 | SSE 14 | SSE 13 | SSE 13 |
| kJ | 18 | 51 | 9 | 37 | 35 | 273 | 273 | 8 | 28 | 28 | 7 | 27 | 17 | 17 | 63 | 62 | 56 | 16 | 16 | 19 | 15 | 36 | 35 | 34 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | — | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 301 | 251 | 306 | 259 | 151 | — | 246 | 153 | 218 | 218 | 251 | 257 | 270 | 374 | 407 | 458 | 439 | 522 | 512 | 559 | 643 | 720 | 727 | 836 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 19 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 19 | 10 | 11 | 10 | 10 | 19 | 20 | 25 | 25 | 29 | 29 | 30 | 147 | 149 | 27 | 150 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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