Surf Forecasts:
How big are the waves at Big Lefts today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 3ft (0.9m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 1.5ft (0.5m), 16s period with SW swell.
- Evening surf: Evening surf (19 Aug, local time) - 1.5ft (0.4m), 16s period with SSW swell.
The current surf forecast for Big Lefts at 11AM is: 0.5m 16s primary swell from a Southwest direction and 0.9m 8s secondary swell from a East direction, 0.6m 8s secondary swell from a East direction (forecast issued at 07:00am August 19). An open ocean swell of 0.6m 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 (19 Aug) | 3ft (0.9m) | 8s |
| Afternoon (19 Aug) | 1.5ft (0.5m) | 16s |
| Evening (19 Aug) | 1.5ft (0.4m) | 16s |
Table - waves today at Big Lefts. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Thu morning, min 24°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | E 8 | SW 16 | SW 16 | E 8 | E 8 | E 8 | ENE 7 | SW 17 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SW 16 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 130 | 140 | 129 | 130 | 100 | 103 | 82 | 153 | 142 | 204 | 207 | 207 | 200 | 184 | 177 | 274 | 288 | 295 | 291 | 284 | 264 | 258 | 322 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | cross | cross | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 10:13AM0.53m | 11:25AM0.56m | 10:11PM0.21m | 12:25PM0.59m | |||||||||||||||||||
Low Tide | 2:01AM0.10m | 2:47AM0.12m | 8:27PM0.20m | 3:53AM0.12m | 8:41PM0.17m | ||||||||||||||||||
 |  | |  | | |  | | | | | | | | | | | | | | | | | |
 | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 |
Feels °C | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 29 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | E 8 | SW 16 | E 8 | E 8 | E 8 | ENE 7 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | SW 17 | ENE 7 | ENE 7 | NE 7 | ENE 7 | SSW 16 |
| kJ | 130 | 140 | 111 | 130 | 84 | 82 | 82 | 153 | 97 | 74 | 71 | 131 | 127 | 108 | 108 | 108 | 88 | 295 | 51 | 83 | 67 | 78 | 322 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | NNE 7 | S 12 | S 12 | S 12 | S 12 | SW 16 | NE 6 | NE 6 | NE 6 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SW 16 | SW 17 | ENE 7 | SW 17 | SW 17 | SW 16 | SW 16 | W 10 |
| kJ | 103 | 69 | 30 | 44 | 45 | 45 | 45 | 129 | 39 | 43 | 42 | 207 | 200 | 184 | 177 | 274 | 288 | 52 | 291 | 284 | 264 | 258 | 50 |
Swell 3 Height (m) Direction Period (s) | W 12 | SW 16 | SW 16 | SSE 9 | SSW 16 | SSW 16 | SW 16 | S 12 | SW 17 | SSW 18 | SSW 18 | SSE 12 | W 11 | W 10 | W 10 | W 9 | W 9 | NNE 7 | NNE 7 | W 10 | W 10 | W 10 | E 8 |
| kJ | 25 | 67 | 129 | 17 | 100 | 103 | 66 | 45 | 142 | 204 | 207 | 28 | 37 | 32 | 30 | 14 | 14 | 27 | 26 | 54 | 52 | 53 | 11 |
Wind waves Height (m) Direction Period (s) | — | NE 7 | E 8 | ENE 8 | NE 6 | NE 6 | NE 6 | NNE 6 | ENE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 7 |
| kJ | — | 47 | 48 | 125 | 31 | 38 | 45 | 51 | 83 | — | — | — | — | — | — | — | — | — | — | — | — | — | 93 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 15 | 0 | 0 | 1 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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