Surf Forecasts:
How big are the waves at Makapu'u today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 8ft (2.5m), 8s period with E 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) - 6.5ft (2.0m), 8s period with E swell.
The current surf forecast for Makapu'u at 12AM is: 1.0m 18s primary swell from a South-southwest direction and 0.2m 10s secondary swell from a South-southwest direction, 2.1m 8s secondary swell from a East-northeast direction (forecast issued at 07:00pm September 17). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 8ft (2.5m) | 8s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 17s |
| Evening (18 Sep) | 6.5ft (2.0m) | 8s |
Table - waves today at Makapu'u. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 27°C on Fri morning, min 26°C on Thu night). Mainly strong winds. | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||
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 9 | ENE 9 | ENE 9 | SSW 18 | ENE 8 | E 8 | ENE 8 | ENE 8 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | ENE 8 | ENE 7 | E 7 | ENE 8 | ENE 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 686 | 645 | 666 | 644 | 644 | 717 | 681 | 601 | 580 | 498 | 580 | 539 | 525 | 489 | 636 | 644 | 570 | 596 | 509 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 10:52AM0.51m | 11:47AM0.54m | |||||||||||||||||
Low Tide | 11:41PM0.10m | 1:18AM0.13m | |||||||||||||||||
 |  | |  | |  | | | |  | | | | |  | | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 26 | 25 | 25 | 24 | 24 | 23 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SSW 17 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 |
| kJ | 258 | 251 | 629 | 644 | 644 | 480 | 622 | 601 | 580 | 498 | 580 | 539 | 525 | 392 | 382 | 382 | 387 | 387 | 201 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSW 19 | SSW 10 | SSE 10 | SSE 10 | SSW 14 | SE 10 | SSE 7 | SSE 6 | SSW 16 | SSW 16 | SSE 6 | SSE 6 | S 19 | SSW 18 | SSW 18 | S 18 | S 18 | SSW 14 |
| kJ | 210 | 312 | 10 | 9 | 9 | 133 | 4 | 11 | 13 | 50 | 51 | 12 | 12 | 66 | 108 | 106 | 99 | 99 | 113 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSE 10 | SW 10 | SW 10 | SW 10 | W 9 | S 21 | S 21 | SSW 18 | SSE 7 | S 20 | S 20 | SSE 6 | SSE 8 | SSE 7 | SSE 6 | SSE 8 | S 16 |
| kJ | 10 | 10 | 9 | 4 | 4 | 4 | 2 | 34 | 36 | 64 | 5 | 30 | 67 | 7 | 6 | 9 | 7 | 7 | 139 |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 7 | E 7 | ENE 8 | ENE 7 | E 7 | ENE 8 | ENE 8 | E 8 | E 8 |
| kJ | 686 | 645 | 666 | 520 | 589 | 717 | 681 | 542 | 460 | 450 | 452 | 478 | 520 | 489 | 636 | 644 | 570 | 596 | 509 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 49 | 49 | 49 | 50 | 55 | 55 | 55 | 111 | 55 | 50 | 50 | 49 | 50 | 55 | 55 | 58 | 58 | 55 | 49 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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