Surf Forecasts:
How big are the waves at Chuns Reef today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 6.5ft (2.0m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 6ft (1.8m), 8s period with E swell.
- Evening surf: Evening surf (18 Sep, local time) - 6ft (1.8m), 8s period with E swell.
The current surf forecast for Chuns Reef at 12PM is: 1.7m 8s primary swell from a East direction and 0.8m 6s secondary swell from a North-northeast direction (forecast issued at 07:00am September 18). An open ocean swell of 0.6m 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 Sep) | 6.5ft (2.0m) | 8s |
| Afternoon (18 Sep) | 6ft (1.8m) | 8s |
| Evening (18 Sep) | 6ft (1.8m) | 8s |
Table - waves today at Chuns Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 25°C on Fri night). Mainly fresh winds. | |||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 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) | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 7 | E 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 470 | 472 | 373 | 373 | 408 | 408 | 373 | 453 | 523 | 501 | 464 | 522 | 526 | 565 | 513 | 501 | 501 | 453 | 464 | 427 | 407 | 393 | 393 |
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-off | cross-off | cross-off |
High Tide | 9:18AM0.43m | 9:34PM0.15m | 10:27AM0.44m | 11:07PM0.17m | 11:22AM0.45m | ||||||||||||||||||
Low Tide | 5:08PM0.14m | 00:51AM0.12m | 5:31PM0.12m | 2:29AM0.12m | 5:53PM0.10m | ||||||||||||||||||
 |  | |  | | | |  | | | | | |  | | | | | | | | | | |
 | 6:18 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 24 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | SSW 18 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | E 10 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 45 | 121 | 60 | 47 | 47 | 47 | 34 | 173 | 171 | 166 | 166 | 121 | 122 | 166 | 121 | 95 | 94 | 86 | 86 | 52 | 85 | 85 | 84 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 14 | SSW 17 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | NW 9 | NW 9 | NW 9 | NW 8 | S 18 | S 18 | NW 10 | N 12 | N 12 | N 12 | N 11 | N 11 | SSW 15 | N 11 | N 11 | N 11 |
| kJ | 204 | 52 | 202 | 197 | 193 | 184 | 179 | 3 | 3 | 3 | 3 | 6 | 6 | 4 | 3 | 3 | 3 | 2 | 2 | 85 | 9 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | WNW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | NW 8 | NW 10 | NW 9 | S 16 | W 13 | N 11 | NW 9 | NW 9 | W 12 |
| kJ | 12 | 12 | 4 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 4 | 3 | 5 | 3 | 10 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 7 | E 7 |
| kJ | 470 | 472 | 373 | 373 | 408 | 408 | 373 | 453 | 523 | 501 | 464 | 522 | 526 | 565 | 513 | 501 | 501 | 453 | 464 | 427 | 407 | 393 | 393 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 19 | 19 | 19 | 291 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 1 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 148 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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