Surf Forecasts:
How big are the waves at Waimanalo today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 11ft (3.5m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 13ft (4.0m), 9s period with E swell.
- Evening surf: Evening surf (15 Aug, local time) - 15ft (4.5m), 10s period with E swell.
The current surf forecast for Waimanalo at 5AM is: 3.0m 8s primary swell from a East-northeast direction and 0.2m 8s secondary swell from a North-northwest direction (forecast issued at 01:00am August 15). An open ocean swell of 0.4m 14s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 11ft (3.5m) | 8s |
| 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 39mm), heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 24°C on Sat night). Winds decreasing (gales from the ENE on Sat night, moderate winds from the E by Sun night). | ||||||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||||||||||
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) | E 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | E 9 | 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 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 993 | 1185 | 1397 | 1811 | 2232 | 2587 | 3253 | 4349 | 3467 | 2374 | 1533 | 1380 | 908 | 766 | 629 | 547 | 472 | 406 | 345 | 327 | 259 | 252 | 215 | 198 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | 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 | cross-on | cross-on |
High Tide | 4:22AM0.43m | 4:30PM0.58m | 5:20AM0.44m | 4:40PM0.52m | 6:27AM0.44m | 4:40PM0.47m | ||||||||||||||||||
Low Tide | 10:00AM0.11m | 10:59PM0.09m | 10:41AM0.19m | 11:25PM0.08m | 11:25AM0.27m | |||||||||||||||||||
 |  |  |  | | | | |  |  |  | | | |  | | |  | | | |  | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 6:59 | — | — |
mm | — | — | — | 1 | 1 | — | — | — | 4 | 6 | 9 | 6 | 4 | 3 | 2 | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 24 | 25 | 26 | 25 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 21 | 21 | 22 | 21 | 21 | 19 | 19 | 17 | 20 | 23 | 24 | 26 | 28 | 27 | 25 | 25 | 25 | 25 | 26 | 24 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | S 14 | SSE 10 | S 16 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | S 7 | S 7 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 |
| kJ | 62 | 58 | 56 | 55 | 55 | 30 | 30 | 32 | 62 | 36 | 253 | 47 | 119 | 77 | 75 | 57 | 35 | 22 | 103 | 103 | 103 | 65 | 63 | 58 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | S 20 | NNW 8 | NNW 8 | NNW 8 | S 17 | NNW 9 | S 18 | SSE 10 | S 17 | NNW 8 | S 16 | S 16 | S 16 | S 16 | S 13 | S 15 | SSE 6 | SSE 6 | S 6 | S 6 | S 6 | S 5 |
| kJ | 6 | 6 | 8 | 7 | 7 | 7 | 22 | 7 | 25 | 20 | 53 | 6 | 46 | 46 | 45 | 45 | 55 | 104 | 13 | 12 | 6 | 6 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | SSW 17 | SW 17 | — | S 20 | S 16 | S 16 | SW 16 | S 18 | SW 16 | NNW 9 | NNW 8 | W 12 | S 13 | S 13 | S 13 | S 13 | S 16 | N 8 | N 8 | N 8 | N 7 | N 7 | N 7 | N 7 |
| kJ | 29 | 12 | — | 7 | 5 | 5 | 10 | 25 | 10 | 7 | 7 | 3 | 13 | 30 | 30 | 30 | 45 | 5 | 5 | 1 | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | E 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | E 9 | 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 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 993 | 1185 | 1397 | 1811 | 2232 | 2587 | 3253 | 4349 | 3467 | 2374 | 1533 | 1380 | 908 | 766 | 629 | 547 | 472 | 406 | 345 | 327 | 259 | 252 | 215 | 198 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 211 | 212 | 211 | 147 | 147 | 212 | 212 | 212 | 220 | 138 | 138 | 225 | 48 | 48 | 9 | 15 | 15 | 15 | 44 | 44 | 44 | 44 | 44 | 44 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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