Surf Forecasts:
How big are the waves at Big Lefts today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3ft (0.9m), 17s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.0m), 17s period with SSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.0m), 16s period with SSW swell.
The current surf forecast for Big Lefts at 5PM is: 1.0m 17s primary swell from a South-southwest direction and 0.3m 7s secondary swell from a South-southeast direction, 1.8m 8s secondary swell from a East-northeast direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3ft (0.9m) | 17s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 17s |
| Evening (18 Sep) | 3.5ft (1.0m) | 16s |
Table - waves today at Big Lefts. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Sun night). Mainly strong winds. | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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) | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 16 | ENE 7 | ENE 7 | ENE 7 | SSW 15 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 622 | 601 | 580 | 566 | 552 | 539 | 525 | 475 | 411 | 542 | 509 | 473 | 473 | 437 | 383 | 452 | 352 | 327 | 336 | 370 | 435 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:27AM0.57m | 11:01PM0.21m | 11:34AM0.59m | 00:19AM0.23m | 12:26PM0.61m | ||||||||||||||||
Low Tide | 7:23PM0.18m | 2:56AM0.18m | 7:43PM0.16m | 4:35AM0.17m | 8:01PM0.15m | ||||||||||||||||
 | | |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 24 | 24 | 26 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 23 | 24 | 24 | 25 | 24 | 24 | 24 | 22 | 23 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 17 | SSW 17 | ENE 8 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 16 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 622 | 601 | 580 | 373 | 552 | 539 | 525 | 475 | 382 | 382 | 387 | 387 | 195 | 190 | 350 | 452 | 253 | 292 | 300 | 370 | 365 |
Swell 2 Height (m) Direction Period (s) | W 9 | SSE 7 | SSE 7 | SSW 16 | W 9 | S 20 | S 20 | SSE 6 | SSW 18 | SSW 18 | S 18 | S 18 | SSW 16 | SSW 13 | SSW 14 | SSE 6 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 7 | 10 | 9 | 566 | 6 | 30 | 67 | 4 | 108 | 106 | 99 | 99 | 166 | 102 | 76 | 7 | 146 | 106 | 104 | 55 | 33 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | S 21 | W 9 | SSE 6 | S 11 | W 9 | W 9 | S 20 | SSE 8 | SSE 7 | SE 6 | SSE 6 | SSW 13 | SW 16 | SW 15 | SW 15 | N 11 | N 11 | W 13 | W 12 | W 12 |
| kJ | 9 | 34 | 6 | 7 | 2 | 2 | 2 | 30 | 6 | 9 | 10 | 7 | 102 | 122 | 54 | 33 | 2 | 2 | 3 | 3 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 8 | E 8 | E 8 | E 7 | ENE 8 | ENE 8 | E 7 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 449 | 474 | 385 | 496 | 463 | 445 | 416 | 427 | 411 | 542 | 509 | 473 | 473 | 437 | 383 | 427 | 352 | 327 | 336 | 342 | 435 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 251 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 36 | 30 | 29 | 29 | 29 | 29 | 36 | 39 | 37 | 36 | 36 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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