Surf Forecasts:
How big are the waves at Chuns Reef today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 3ft (0.9m), 9s period with E swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 4ft (1.2m), 8s period with ENE swell.
- Evening surf: Evening surf (19 Aug, local time) - 4ft (1.2m), 8s period with ENE swell.
The current surf forecast for Chuns Reef at 3PM is: 1.2m 8s primary swell from a East-northeast direction and 0.3m 12s secondary swell from a West-northwest direction (forecast issued at 07:00am August 19). An open ocean swell of 0.4m 16s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 3ft (0.9m) | 9s |
| Afternoon (19 Aug) | 4ft (1.2m) | 8s |
| Evening (19 Aug) | 4ft (1.2m) | 8s |
Table - waves today at Chuns Reef. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 28°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||||||||
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 9 | E 9 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 186 | 117 | 115 | 176 | 176 | 176 | 168 | 104 | 102 | 80 | 72 | 160 | 160 | 160 | 138 | 88 | 68 | 37 | 52 | 117 | 149 | 145 | 145 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:05AM0.42m | 10:17AM0.44m | 8:42PM0.16m | 11:18AM0.46m | 10:56PM0.16m | ||||||||||||||||||
Low Tide | 00:40AM0.08m | 6:18PM0.16m | 1:46AM0.09m | 6:29PM0.13m | |||||||||||||||||||
 |  | | | |  | | | |  | | | | | | | | | | |  | | | |
 | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 24 | 25 | 26 | 27 | 26 | 25 | 25 | 24 | 24 | 25 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 28 | 27 | 27 | 26 | 26 |
Feels °C | 25 | 26 | 27 | 28 | 27 | 26 | 26 | 25 | 26 | 27 | 29 | 29 | 29 | 29 | 29 | 30 | 28 | 29 | 32 | 30 | 30 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NE 7 | NE 6 | SW 16 | WNW 11 | WNW 11 | WSW 8 | E 8 | E 8 | NE 6 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 7 | NE 7 | W 10 | W 10 | SSW 16 | SW 16 |
| kJ | 20 | 47 | 43 | 67 | 25 | 12 | 6 | 104 | 102 | 59 | 72 | 160 | 160 | 160 | 138 | 88 | 68 | 37 | 52 | 35 | 35 | 98 | 124 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SSW 16 | WSW 7 | SSW 16 | NE 6 | NE 6 | E 8 | NE 6 | SW 18 | W 11 | WSW 10 | WSW 10 | NNE 7 | NE 7 | NNE 6 | E 7 | SW 16 | SW 16 | W 10 | W 10 |
| kJ | 28 | 28 | 28 | 27 | 25 | 5 | 25 | 58 | 58 | 80 | 42 | 78 | 36 | 33 | 31 | 38 | 46 | 36 | 34 | 68 | 64 | 35 | 32 |
Swell 3 Height (m) Direction Period (s) | WSW 7 | SW 16 | SW 16 | WSW 7 | WSW 7 | SSW 16 | W 11 | SW 16 | SW 17 | SW 18 | ENE 7 | WSW 9 | SW 17 | SW 17 | SW 16 | SSW 16 | SW 16 | E 8 | SSW 16 | SW 9 | SW 9 | ESE 8 | ESE 9 |
| kJ | 4 | 41 | 41 | 5 | 5 | 25 | 9 | 67 | 71 | 78 | 19 | 16 | 76 | 70 | 68 | 104 | 133 | 33 | 107 | 3 | 3 | 14 | 15 |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | — | — | — | — | — | — | — | — | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 186 | 117 | 115 | 176 | 176 | 176 | 168 | — | — | — | — | — | — | — | — | — | — | — | — | 117 | 149 | 145 | 145 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 4 | 19 | 19 | 19 | 0 | 0 | 0 | 0 | 17 | 17 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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