Surf Forecasts:
How big are the waves at Castles Beach today (31 Oct):
- Morning surf: Morning surf (31 Oct, local time) - 4ft (1.2m), 9s period with NNE swell.
- Afternoon surf: Afternoon surf (31 Oct, local time) - 3.5ft (1.1m), 9s period with NE swell.
- Evening surf: Evening surf (31 Oct, local time) - 3.5ft (1.1m), 8s period with NE swell.
The current surf forecast for Castles Beach at 3AM is: 1.3m 9s primary swell from a North-northeast direction and 0.5m 13s secondary swell from a South direction, 0.8m 6s secondary swell from a East direction (forecast issued at 07:00pm October 30). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Oct) | 4ft (1.2m) | 9s |
| Afternoon (31 Oct) | 3.5ft (1.1m) | 9s |
| Evening (31 Oct) | 3.5ft (1.1m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 25°C on Fri night, min 24°C on Fri night). Winds increasing (light winds from the E on Sat night, strong winds from the NE by Sun night). | |||||||||||||||||||
Fri 30 | Saturday 31 | Sunday 1 | |||||||||||||||||
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 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | S 15 | NE 8 | NE 8 | NE 8 | NE 5 | NE 5 | NE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 342 | 282 | 255 | 249 | 244 | 211 | 207 | 174 | 170 | 162 | 196 | 132 | 116 | 149 | 145 | 165 | 70 | 106 | 198 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:29AM0.79m | 8:44AM0.76m | 8:54PM0.34m | ||||||||||||||||
Low Tide | 10:41PM0.12m | 11:41PM0.20m | 5:33PM0.32m | ||||||||||||||||
 |  | |  | | | | |  | | | | | | | | |  | | |
 | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:53 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 24 |
Feels °C | 24 | 25 | 23 | 24 | 24 | 24 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 23 | 24 | 23 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | NNE 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NW 20 | NNW 19 | NNW 18 | NW 18 | NNW 17 | NW 16 | NW 16 | NNW 16 |
| kJ | 342 | 282 | 255 | 249 | 244 | 211 | 207 | 174 | 170 | 162 | 196 | 1599 | 1632 | 1760 | 1952 | 1653 | 1672 | 1631 | 1498 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | NW 21 | NW 21 | NE 8 | NE 8 | S 16 | E 12 | E 12 | E 11 | E 11 | S 14 |
| kJ | 100 | 142 | 89 | 87 | 87 | 85 | 85 | 55 | 91 | 454 | 983 | 132 | 98 | 119 | 44 | 43 | 40 | 38 | 35 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | NW 22 | S 14 | E 12 | E 6 | S 15 | E 12 | S 15 | S 14 | S 13 | S 14 | E 11 |
| kJ | 51 | 51 | 51 | 49 | 48 | 47 | 47 | 46 | 231 | 103 | 69 | 21 | 116 | 68 | 74 | 57 | 56 | 59 | 21 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | — | E 6 | NE 8 | NE 8 | NE 8 | NE 5 | NE 5 | NE 6 |
| kJ | 68 | 53 | 53 | 39 | 40 | 39 | 31 | 30 | 30 | 29 | 38 | — | 15 | 149 | 145 | 165 | 70 | 106 | 198 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 41 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 42 | 123 | 125 | 123 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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