Surf Forecasts:
How big are the waves at Waimanalo today (18 Oct):
- Morning surf: Morning surf (18 Oct, local time) - 7ft (2.1m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Oct, local time) - 6.5ft (2.0m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Oct, local time) - 7.5ft (2.3m), 7s period with ENE swell.
The current surf forecast for Waimanalo at 5AM is: 2.1m 7s primary swell from a East-northeast direction and 1.0m 13s secondary swell from a North direction (forecast issued at 01:00am October 18). An open ocean swell of 0.4m 15s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 7ft (2.1m) | 7s |
| Afternoon (18 Oct) | 6.5ft (2.0m) | 7s |
| Evening (18 Oct) | 7.5ft (2.3m) | 7s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Sun morning, min 24°C on Sun night). Mainly strong winds. | ||||||||||||||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | ||||||||||||||||||||||
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 | 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 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 385 | 397 | 408 | 408 | 358 | 419 | 512 | 572 | 558 | 526 | 525 | 572 | 555 | 509 | 481 | 604 | 604 | 509 | 481 | 495 | 540 | 604 | 588 | 574 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:36AM0.53m | 10:15PM0.21m | 11:17AM0.55m | 11:25PM0.27m | 11:44AM0.56m | |||||||||||||||||||
Low Tide | 11:41PM0.13m | 8:27PM0.17m | 2:16AM0.16m | 6:48PM0.17m | 3:58AM0.15m | 6:31PM0.15m | ||||||||||||||||||
 | |  | | | | | | | | | | | | |  | | | | | | | | | |
 | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:02 | — | — | — | — | — | — | — | 6:01 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 |
Feels °C | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | N 13 | N 13 | N 12 | N 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | NNW 11 | N 10 | NNW 10 | NNW 10 | NNW 10 | N 10 |
| kJ | 166 | 339 | 314 | 284 | 228 | 224 | 213 | 161 | 151 | 114 | 114 | 116 | 121 | 88 | 88 | 62 | 61 | 59 | 37 | 33 | 35 | 34 | 33 | 31 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 |
| kJ | 102 | 56 | 54 | 54 | 48 | 46 | 62 | 44 | 39 | 52 | 52 | 50 | 20 | 19 | 19 | 19 | 18 | 17 | 16 | 15 | 15 | 4 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | NW 16 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | N 13 | N 13 | N 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 |
| kJ | 64 | 30 | 30 | 30 | 30 | 29 | 12 | 12 | 11 | 32 | 31 | 31 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 385 | 397 | 408 | 408 | 358 | 419 | 512 | 572 | 558 | 526 | 525 | 572 | 555 | 509 | 481 | 604 | 604 | 509 | 481 | 495 | 540 | 604 | 588 | 574 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 57 | 52 | 57 | 52 | 116 | 116 | 57 | 118 | 57 | 52 | 52 | 50 | 57 | 57 | 57 | 120 | 52 | 44 | 50 | 57 | 57 | 58 | 52 | 52 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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