Surf Forecasts:
How big are the waves at Chuns Reef today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 2.5ft (0.8m), 7s period with NNE swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 2.5ft (0.8m), 7s period with E swell.
- Evening surf: Evening surf (21 Aug, local time) - 4ft (1.2m), 7s period with E swell.
The current surf forecast for Chuns Reef at 6PM is: 1.0m 7s primary swell from a East direction and 0.7m 7s secondary swell from a North-northeast direction (forecast issued at 01:00pm August 21). 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 (21 Aug) | 2.5ft (0.8m) | 7s |
| Afternoon (21 Aug) | 2.5ft (0.8m) | 7s |
| Evening (21 Aug) | 4ft (1.2m) | 7s |
Table - waves today at Chuns Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Sat night). Winds increasing (light winds from the ENE on Fri afternoon, fresh winds from the ENE by Sun afternoon). | |||||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||
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 7 | E 8 | E 7 | E 7 | ENE 7 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 59 | 72 | 86 | 131 | 186 | 209 | 215 | 222 | 258 | 274 | 329 | 366 | 404 | 416 | 457 | 427 | 371 | 315 | 282 | 247 | 247 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:18AM0.46m | 10:56PM0.16m | 12:07PM0.48m | 11:59PM0.17m | 12:48PM0.50m | ||||||||||||||||
Low Tide | 6:29PM0.13m | 3:00AM0.08m | 6:49PM0.12m | 4:03AM0.07m | 7:09PM0.10m | ||||||||||||||||
 |  | |  | | | | | | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:55 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 32 | 31 | 29 | 29 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | SW 16 | SW 16 | SW 16 | SSW 16 | WNW 10 | W 10 | W 11 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | NW 11 | NW 11 |
| kJ | 59 | 53 | 41 | 41 | 124 | 124 | 122 | 98 | 34 | 52 | 59 | 137 | 106 | 164 | 156 | 109 | 105 | 101 | 99 | 126 | 133 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | W 10 | SW 16 | SSW 16 | W 10 | W 10 | WNW 10 | WNW 10 | SSW 16 | SSW 16 | SSW 16 | SW 16 | W 11 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 |
| kJ | 38 | 33 | 64 | 98 | 34 | 31 | 33 | 34 | 98 | 97 | 95 | 62 | 58 | 60 | 59 | 57 | 57 | 56 | 54 | 54 | 53 |
Swell 3 Height (m) Direction Period (s) | W 11 | SW 16 | W 10 | W 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | NW 14 | WSW 9 | SW 16 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | SW 8 |
| kJ | 36 | 68 | 31 | 31 | 8 | 10 | 10 | 10 | 10 | 9 | 50 | 8 | 61 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | — | E 8 | E 7 | E 7 | ENE 7 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 6 |
| kJ | — | 72 | 86 | 131 | 186 | 209 | 215 | 222 | 258 | 274 | 329 | 366 | 404 | 416 | 457 | 427 | 371 | 315 | 282 | 247 | 247 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 21 | 165 | 165 | 19 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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