Surf Forecasts:
How big are the waves at Duds Reef today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 2ft (0.6m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2.5ft (0.7m), 18s period with SW swell.
- Evening surf: Evening surf (20 Aug, local time) - 2.5ft (0.7m), 16s period with SW swell.
The current surf forecast for Duds Reef at 12AM is: 1.2m 8s primary swell from a East-northeast direction and 0.9m 8s secondary swell from a East-northeast direction, 0.5m 16s secondary swell from a Southwest direction (forecast issued at 07:00pm August 19). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 2ft (0.6m) | 18s |
| Afternoon (20 Aug) | 2.5ft (0.7m) | 18s |
| Evening (20 Aug) | 2.5ft (0.7m) | 16s |
Table - waves today at Duds Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 24°C on Wed night). Winds increasing (calm on Fri night, fresh winds from the ENE by Sat afternoon). | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 16 | ENE 8 | SSW 16 | SSW 17 | SSW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SSW 16 | SW 17 | SSW 17 | SSW 17 | SW 17 | SSW 16 | SSW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 125 | 129 | 179 | 175 | 197 | 207 | 316 | 316 | 305 | 278 | 271 | 347 | 414 | 368 | 368 | 281 | 326 | 322 | 367 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | on | cross-on | glassy | glassy | glassy | cross | cross | cross | on | cross-on | cross-on | glassy | cross |
High Tide | 11:04AM0.57m | 12:12PM0.60m | |||||||||||||||||
Low Tide | 2:04AM0.14m | 3:11AM0.15m | 9:15PM0.23m | ||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 26 | 26 | 26 | 27 | 26 | 28 | 30 | 29 | 30 | 31 | 30 | 28 | 29 | 30 | 30 | 30 | 30 | 32 | 28 |
Swell 1 Height (m) Direction Period (s) | S 12 | SW 16 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | SSW 16 | SW 17 | SSW 17 | SSW 17 | SW 17 | SSW 16 | SSW 16 | SW 16 |
| kJ | 71 | 129 | 107 | 104 | 76 | 74 | 55 | 57 | 73 | 73 | 57 | 347 | 414 | 368 | 368 | 281 | 326 | 322 | 367 |
Swell 2 Height (m) Direction Period (s) | SW 16 | S 12 | SW 16 | SSW 16 | SSW 17 | SSW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 125 | 71 | 127 | 175 | 197 | 207 | 316 | 316 | 305 | 278 | 271 | 57 | 55 | 41 | 40 | 40 | 40 | 33 | 52 |
Swell 3 Height (m) Direction Period (s) | SW 19 | SSE 9 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 |
| kJ | 93 | 16 | 71 | 45 | 44 | 65 | 63 | 39 | 57 | 49 | 47 | 42 | 27 | 37 | 82 | 73 | 49 | 51 | 48 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 112 | 109 | 179 | 75 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 12 | 6 | 0 | 0 | 0 | 10 | 6 | 0 | 0 | 0 | 6 | 6 | 0 | 15 | 18 | 12 | 0 | 6 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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