Surf Forecasts:
How big are the waves at Halawa today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 3ft (0.9m), 7s period with NNE swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 3.5ft (1.1m), 7s period with NE swell.
- Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.1m), 7s period with NE swell.
The current surf forecast for Halawa at 10AM is: 0.9m 7s primary swell from a North-northeast direction (forecast issued at 07:00am August 20). An open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 3ft (0.9m) | 7s |
| Afternoon (20 Aug) | 3.5ft (1.1m) | 7s |
| Evening (20 Aug) | 3.5ft (1.1m) | 7s |
Table - waves today at Halawa. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Thu morning). Winds increasing (light winds from the ENE on Thu morning, fresh winds from the E by Sat night). | |||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||||||||
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) | NNE 6 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 7 | NE 7 | NNE 7 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | ENE 7 | W 10 | E 6 | W 10 | E 6 | W 10 | W 10 | WNW 10 | W 10 | WNW 14 | NW 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 49 | 59 | 93 | 116 | 151 | 138 | 91 | 51 | 48 | 40 | 36 | 36 | 168 | 32 | 160 | 18 | 177 | 17 | 17 | 19 | 17 | 120 | 49 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | on | cross-on | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 11:03AM0.66m | 12:04PM0.72m | 12:38PM0.76m | 10:08PM0.40m | |||||||||||||||||||
Low Tide | 2:06AM0.24m | 3:51AM0.23m | 9:08PM0.40m | ||||||||||||||||||||
 |  | | | | | | | | |  | | | | | | | | | | | | | |
 | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:51 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | E 8 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 7 | NE 7 | NNE 7 | E 7 | NNE 7 | NNE 7 | NNE 7 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 14 | SW 16 |
| kJ | 94 | 59 | 93 | 116 | 151 | 138 | 91 | 51 | 62 | 40 | 36 | 36 | 91 | 88 | 124 | 124 | 124 | 124 | 89 | 88 | 87 | 120 | 85 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | E 8 | E 8 | E 8 | SW 17 | SW 17 | E 8 | ENE 7 | NNE 6 | ENE 7 | SW 17 | SW 17 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | WNW 10 | W 10 | SW 16 | WNW 12 |
| kJ | 49 | 71 | 74 | 41 | 107 | 72 | 33 | 49 | 48 | 38 | 100 | 97 | 35 | 32 | 31 | 18 | 17 | 17 | 17 | 19 | 17 | 86 | 45 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 17 | SW 18 | SW 18 | W 9 | W 11 | SW 16 | E 8 | SW 17 | SW 17 | ESE 8 | ESE 8 | SW 8 | SW 9 | SW 9 | SW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WNW 12 | WSW 10 | NW 14 |
| kJ | 42 | 77 | 79 | 109 | 6 | 21 | 94 | 35 | 97 | 138 | 22 | 23 | 3 | 3 | 3 | 3 | 11 | 10 | 10 | 10 | 15 | 9 | 49 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 2 | — | — | — | E 4 | ENE 7 | E 7 | ENE 7 | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 |
| kJ | — | — | — | — | — | 1 | — | — | — | 7 | 79 | 92 | 168 | 200 | 160 | 190 | 177 | 194 | 243 | 272 | 335 | 322 | 335 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 19 | 19 | 5 | 5 | 5 | 19 | 0 | 19 | 19 | 19 | 19 | 24 | 29 | 29 | 29 | 25 | 24 | 29 | 31 | 29 | 29 | 29 | 31 |
Best forecast wave conditions in Molokai | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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