Surf Forecasts:
How big are the waves at Waimanalo today (13 Aug):
- Afternoon surf: Afternoon surf (13 Aug, local time) - 5.5ft (1.7m), 6s period with ENE swell.
- Evening surf: Evening surf (13 Aug, local time) - 6ft (1.9m), 7s period with ENE swell.
The current surf forecast for Waimanalo at 10PM is: 2.0m 7s primary swell from a East-northeast direction and 0.2m 7s secondary swell from a North-northwest direction (forecast issued at 07:00pm August 13). An open ocean swell of 0.6m 15s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | - | - |
| Afternoon (13 Aug) | 5.5ft (1.7m) | 6s |
| Evening (13 Aug) | 6ft (1.9m) | 7s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Sun afternoon. Warm (max 26°C on Thu night, min 25°C on Thu night). Winds decreasing (near gales from the ENE on Sat night, light winds from the ESE by Sun afternoon). | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | |||||||||||||||||
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 6 | 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 | E 8 | E 9 | ENE 9 | ENE 9 | E 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 233 | 268 | 352 | 373 | 392 | 456 | 507 | 534 | 569 | 640 | 768 | 960 | 1108 | 1231 | 1326 | 1454 | 1521 | 1872 | 2023 |
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 | 3:49PM0.69m | 3:28AM0.42m | 4:12PM0.63m | 4:22AM0.43m | 4:30PM0.58m | ||||||||||||||
Low Tide | 10:07PM0.14m | 9:20AM0.03m | 10:33PM0.12m | 10:00AM0.11m | 10:59PM0.09m | ||||||||||||||
 |  | | | | | | | | |  | | | | | |  |  | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 22 | 24 | 22 | 22 | 22 | 21 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 22 | 22 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
| kJ | 161 | 159 | 159 | 159 | 159 | 155 | 106 | 106 | 102 | 102 | 100 | 62 | 58 | 56 | 55 | 55 | 55 | 54 | 56 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 |
| kJ | 6 | 6 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 7 |
Swell 3 Height (m) Direction Period (s) | — | E 11 | — | S 18 | — | S 11 | — | — | S 18 | SW 18 | SW 18 | SSW 17 | SW 17 | — | S 20 | S 16 | S 16 | S 17 | S 18 |
| kJ | — | 2 | — | 6 | — | 2 | — | — | 6 | 12 | 12 | 29 | 12 | — | 7 | 5 | 5 | 22 | 25 |
Wind waves Height (m) Direction Period (s) | ENE 6 | 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 | E 8 | E 9 | ENE 9 | ENE 9 | E 9 |
| kJ | 233 | 268 | 352 | 373 | 392 | 456 | 507 | 534 | 569 | 640 | 768 | 960 | 1108 | 1231 | 1326 | 1454 | 1521 | 1872 | 2023 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 55 | 117 | 55 | 44 | 44 | 46 | 45 | 116 | 55 | 117 | 117 | 55 | 212 | 212 | 212 | 120 | 212 | 146 | 212 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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