Surf Forecasts:
How big are the waves at Chuns Reef today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.3m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 4ft (1.2m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Aug, local time) - 4ft (1.2m), 7s period with ENE swell.
The current surf forecast for Chuns Reef at 3PM is: 1.2m 7s primary swell from a East-northeast direction and 0.3m 13s secondary swell from a West-northwest direction (forecast issued at 07:00am August 18). An open ocean swell of 0.3m 17s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 4.5ft (1.3m) | 7s |
| Afternoon (18 Aug) | 4ft (1.2m) | 7s |
| Evening (18 Aug) | 4ft (1.2m) | 7s |
Table - waves today at Chuns Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 8 | ENE 7 | ENE 8 | ENE 7 | E 8 | ENE 6 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 173 | 166 | 166 | 176 | 160 | 160 | 145 | 164 | 178 | 124 | 115 | 113 | 149 | 176 | 172 | 103 | 102 | 76 | 74 | 72 | 164 | 164 | 164 |
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-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross |
High Tide | 7:53AM0.41m | 6:07PM0.25m | 9:05AM0.42m | 10:17AM0.44m | 8:42PM0.16m | ||||||||||||||||||
Low Tide | 1:39PM0.22m | 11:54PM0.07m | 00:40AM0.08m | 6:18PM0.16m | |||||||||||||||||||
 |  | | | |  | | | |  | | | | | | | | | | | | | | |
 | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 27 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 26 | 25 | 25 | 27 | 25 | 25 | 24 | 24 | 25 | 24 | 25 | 27 | 27 | 26 | 25 | 25 | 26 | 27 | 29 | 29 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | WNW 13 | SW 17 | WNW 13 | WNW 12 | NE 7 | WNW 12 | NNE 7 | WNW 12 | NE 6 | SW 16 | WNW 11 | WNW 11 | WSW 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SW 17 | ENE 7 | ENE 7 |
| kJ | 15 | 15 | 34 | 47 | 34 | 30 | 23 | 28 | 9 | 28 | 43 | 67 | 25 | 12 | 6 | 103 | 102 | 76 | 74 | 72 | 76 | 164 | 164 |
Swell 2 Height (m) Direction Period (s) | WSW 6 | WSW 6 | SSW 17 | WNW 13 | SSW 18 | SSW 18 | WNW 12 | NNE 7 | WNW 12 | SW 16 | WNW 12 | WNW 12 | SSW 16 | WSW 7 | SSW 16 | NE 6 | NE 6 | NE 6 | NE 6 | SW 18 | W 8 | SW 17 | SW 16 |
| kJ | 4 | 4 | 28 | 34 | 30 | 31 | 28 | 9 | 28 | 41 | 28 | 27 | 25 | 5 | 25 | 54 | 40 | 40 | 40 | 78 | 4 | 70 | 68 |
Swell 3 Height (m) Direction Period (s) | S 13 | WNW 13 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | SSW 18 | WSW 7 | WSW 7 | SW 16 | WSW 7 | WSW 7 | SSW 16 | W 11 | SW 16 | SW 17 | SW 18 | SW 18 | W 11 | W 11 | W 8 | W 10 |
| kJ | 14 | 17 | 4 | 4 | 4 | 4 | 4 | 30 | 4 | 5 | 41 | 5 | 5 | 25 | 9 | 67 | 71 | 78 | 79 | 9 | 9 | 5 | 8 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 8 | ENE 7 | ENE 8 | ENE 7 | E 8 | ENE 6 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | NE 6 | ENE 7 | — | — |
| kJ | 173 | 166 | 166 | 176 | 160 | 160 | 145 | 164 | 178 | 124 | 115 | 113 | 149 | 176 | 172 | — | — | — | — | 40 | 164 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 21 | 19 | 19 | 1 | 19 | 19 | 3 | 19 | 21 | 3 | 1 | 0 | 19 | 19 | 19 | 0 | 0 | 0 | 0 | 0 | 17 | 17 | 17 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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