Surf Forecasts:
How big are the waves at Number Fours today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 6.5ft (2.0m), 8s period with ENE 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 Number Fours at 1PM is: 1.0m 17s primary swell from a South-southwest direction and 0.3m 7s secondary swell from a South-southeast direction, 2.0m 8s secondary swell from a East-northeast direction (forecast issued at 07:00am September 18). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6.5ft (2.0m) | 8s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 17s |
| Evening (18 Sep) | 3.5ft (1.0m) | 16s |
Table - waves today at Number Fours. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 25°C on Sat night). Mainly strong winds. | |||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||||
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) | SSW 18 | ENE 8 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | ENE 8 | E 7 | E 8 | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | SSW 16 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 644 | 427 | 622 | 601 | 580 | 566 | 552 | 539 | 525 | 484 | 452 | 531 | 520 | 522 | 566 | 518 | 438 | 373 | 427 | 352 | 362 | 371 | 371 |
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 | 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 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 25 | 25 |
Feels °C | 25 | 26 | 24 | 24 | 26 | 23 | 24 | 24 | 25 | 24 | 22 | 24 | 23 | 24 | 24 | 24 | 23 | 24 | 23 | 22 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 644 | 390 | 622 | 601 | 580 | 566 | 552 | 539 | 525 | 392 | 382 | 382 | 387 | 387 | 195 | 273 | 350 | 366 | 253 | 296 | 300 | 370 | 365 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSW 14 | W 9 | SSE 7 | SE 7 | SSE 6 | SSE 9 | SSE 8 | SSE 7 | SSE 6 | SSW 18 | SSW 18 | S 18 | S 18 | SSW 16 | SW 16 | SSW 16 | SSE 6 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 9 | 131 | 7 | 10 | 12 | 7 | 8 | 12 | 18 | 8 | 108 | 106 | 99 | 99 | 166 | 122 | 98 | 7 | 107 | 107 | 104 | 55 | 33 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SSE 10 | SSE 10 | S 21 | W 9 | S 21 | W 9 | S 20 | S 20 | S 20 | SSE 8 | SSE 6 | SSE 6 | SSE 6 | SSW 13 | SSW 14 | SW 15 | SW 15 | SSE 6 | SSE 8 | SSE 12 | W 12 | W 12 |
| kJ | 4 | 9 | 9 | 34 | 6 | 34 | 6 | 30 | 67 | 30 | 7 | 8 | 7 | 7 | 70 | 37 | 54 | 33 | 7 | 6 | 14 | 3 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 7 | E 7 | ENE 8 | ENE 8 | E 7 | E 8 | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 441 | 427 | 469 | 437 | 384 | 384 | 400 | 491 | 449 | 484 | 452 | 531 | 520 | 522 | 566 | 518 | 438 | 373 | 427 | 352 | 362 | 371 | 371 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 33 | 31 | 39 | 248 | 48 | 39 | 39 | 39 | 39 | 39 | 39 | 42 | 39 | 39 | 32 | 31 | 31 | 31 | 39 | 42 | 39 | 39 | 126 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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