Surf Forecasts:
How big are the waves at Chuns Reef today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 5.5ft (1.7m), 8s period with E swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 6.5ft (2.0m), 7s period with E swell.
- Evening surf: Evening surf (31 Jul, local time) - 7ft (2.2m), 8s period with E swell.
The current surf forecast for Chuns Reef at 1PM is: 1.9m 7s primary swell from a East direction and 0.7m 15s secondary swell from a East direction (forecast issued at 07:00am July 31). 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 (31 Jul) | 5.5ft (1.7m) | 8s |
| Afternoon (31 Jul) | 6.5ft (2.0m) | 7s |
| Evening (31 Jul) | 7ft (2.2m) | 8s |
Table - waves today at Chuns Reef. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 27°C on Fri morning, min 24°C on Sat night). Mainly fresh winds. | |||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||||||||
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 7 | E 8 | E 8 | E 7 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 311 | 291 | 371 | 422 | 451 | 529 | 663 | 776 | 825 | 902 | 916 | 871 | 824 | 976 | 1000 | 1000 | 885 | 820 | 758 | 782 | 763 | 705 | 650 |
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 | 4:05AM0.23m | 4:22PM0.52m | 4:52AM0.27m | 4:50PM0.48m | 5:45AM0.30m | 5:19PM0.42m | |||||||||||||||||
Low Tide | 8:18AM0.05m | 10:17PM0.05m | 9:03AM0.09m | 10:42PM0.04m | 9:57AM0.13m | ||||||||||||||||||
 |  | | |  |  | | | | | | | | |  | |  | | | | | | | |
 | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:10 | — | — | — | — | — | — | — | 7:10 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 24 | 25 | 24 | 25 | 26 | 26 | 25 | 25 | 24 |
Feels °C | 26 | 25 | 25 | 25 | 24 | 24 | 23 | 22 | 22 | 22 | 23 | 23 | 22 | 23 | 21 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | E 16 | E 16 | E 15 | E 15 | E 16 | E 15 | E 15 | E 15 | E 14 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 |
| kJ | 185 | 237 | 157 | 225 | 301 | 222 | 216 | 205 | 202 | 267 | 267 | 202 | 196 | 260 | 260 | 196 | 188 | 191 | 191 | 186 | 186 | 127 | 121 |
Swell 2 Height (m) Direction Period (s) | SW 16 | N 9 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | N 9 | N 9 | N 9 | N 9 | N 8 | N 8 |
| kJ | 66 | 24 | 65 | 64 | 84 | 110 | 107 | 56 | 55 | 54 | 50 | 47 | 47 | 47 | 47 | 47 | 49 | 27 | 15 | 25 | 14 | 13 | 12 |
Swell 3 Height (m) Direction Period (s) | N 9 | SW 16 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | S 11 | N 11 | N 11 | N 10 | N 10 | N 10 | N 10 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 13 |
| kJ | 25 | 66 | 22 | 21 | 12 | 12 | 11 | 11 | 10 | 5 | 3 | 10 | 9 | 8 | 17 | 17 | 16 | 50 | 50 | 46 | 44 | 27 | 16 |
Wind waves Height (m) Direction Period (s) | E 7 | E 8 | E 8 | E 7 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 311 | 291 | 371 | 422 | 451 | 529 | 663 | 776 | 825 | 902 | 916 | 871 | 824 | 976 | 1000 | 1000 | 885 | 820 | 758 | 782 | 763 | 705 | 650 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 19 | 19 | 19 | 19 | 22 | 19 | 166 | 166 | 166 | 174 | 182 | 168 | 168 | 19 | 21 | 168 | 19 | 21 | 168 | 168 | 174 | 21 | 21 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Chuns Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest