Surf Forecasts:
How big are the waves at Waimanalo today (15 Aug):
- Afternoon surf: Afternoon surf (15 Aug, local time) - 13ft (4.0m), 9s period with ENE swell.
- Evening surf: Evening surf (15 Aug, local time) - 15ft (4.5m), 10s period with E swell.
The current surf forecast for Waimanalo at 11PM is: 4.5m 10s primary swell from a East direction (forecast issued at 07:00pm August 15). An open ocean swell of 0.3m 13s is not directed at the surf break, a second open ocean swell of 0.2m 18s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | - | - |
| Afternoon (15 Aug) | 13ft (4.0m) | 9s |
| Evening (15 Aug) | 15ft (4.5m) | 10s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 62mm), heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 25°C on Sat night). Winds decreasing (near gales from the ENE on Sat night, moderate winds from the ESE by Sun night). | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | |||||||||||||||||
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 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 2613 | 3153 | 3881 | 4435 | 3588 | 2670 | 2014 | 1428 | 908 | 688 | 560 | 484 | 375 | 345 | 327 | 284 | 261 | 215 | 215 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 4:30PM0.58m | 5:20AM0.44m | 4:40PM0.52m | 6:27AM0.44m | 4:40PM0.47m | ||||||||||||||
Low Tide | 10:59PM0.09m | 10:41AM0.19m | 11:25PM0.08m | 11:25AM0.27m | |||||||||||||||
 |  | | | | |  | | | |  |  | |  | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 6:59 | — | — |
mm | 1 | 1 | 1 | 1 | 12 | 27 | 10 | 4 | 4 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 21 | 21 | 20 | 20 | 21 | 21 | 24 | 25 | 27 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 14 | S 14 | SSE 10 | S 16 | S 16 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | S 7 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 |
| kJ | 31 | 30 | 32 | 63 | 65 | 135 | 83 | 46 | 94 | 60 | 42 | 38 | 23 | 103 | 103 | 103 | 65 | 63 | 58 |
Swell 2 Height (m) Direction Period (s) | NNW 9 | S 17 | S 18 | NNW 8 | S 18 | S 17 | S 12 | S 13 | S 16 | S 16 | S 16 | S 13 | S 15 | SSE 6 | SSE 6 | S 6 | S 6 | S 6 | SW 6 |
| kJ | 7 | 22 | 25 | 6 | 25 | 53 | 25 | 28 | 46 | 45 | 45 | 56 | 104 | 13 | 12 | 6 | 6 | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | S 16 | SW 16 | SSW 16 | S 18 | NNW 9 | S 12 | NNW 8 | NNW 8 | S 13 | S 13 | S 13 | S 16 | N 8 | N 8 | N 8 | N 7 | N 7 | N 7 | N 7 |
| kJ | 5 | 10 | 25 | 25 | 8 | 12 | 7 | 7 | 30 | 30 | 30 | 45 | 5 | 1 | 1 | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | ENE 9 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 2613 | 3153 | 3881 | 4435 | 3588 | 2670 | 2014 | 1428 | 908 | 688 | 560 | 484 | 375 | 345 | 327 | 284 | 261 | 215 | 215 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 212 | 212 | 220 | 229 | 146 | 146 | 147 | 51 | 48 | 48 | 14 | 15 | 15 | 44 | 44 | 44 | 44 | 44 | 15 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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