Surf Forecasts:
How big are the waves at Castles Beach today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 5.5ft (1.7m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 5.5ft (1.7m), 7s period with ENE swell.
- Evening surf: Evening surf (17 Aug, local time) - 5ft (1.5m), 7s period with ENE swell.
The current surf forecast for Castles Beach at 10PM is: 1.5m 7s primary swell from a East-northeast direction and 0.4m 14s secondary swell from a South direction, 0.2m 5s secondary swell from a South direction (forecast issued at 01:00pm August 17). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 5.5ft (1.7m) | 8s |
| Afternoon (17 Aug) | 5.5ft (1.7m) | 7s |
| Evening (17 Aug) | 5ft (1.5m) | 7s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Mon afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||
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 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 5 | ENE 5 | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 346 | 294 | 261 | 222 | 215 | 173 | 163 | 163 | 139 | 143 | 119 | 114 | 135 | 102 | 102 | 202 | 113 | 88 | 84 | 149 | 146 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:33PM0.62m | 7:01AM0.60m | 4:19PM0.57m | 8:55AM0.61m | |||||||||||||||||
Low Tide | 11:08AM0.42m | 11:37PM0.19m | 11:57AM0.50m | 00:07AM0.20m | |||||||||||||||||
 |  |  |  | |  |  | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 25 | 24 | 25 | 23 | 24 | 24 | 25 | 26 | 26 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | NNE 7 | NNE 6 | NE 6 | E 8 | E 8 | E 8 | E 8 |
| kJ | 103 | 103 | 65 | 63 | 59 | 55 | 55 | 54 | 54 | 30 | 30 | 30 | 29 | 29 | 10 | 17 | 51 | 88 | 84 | 82 | 82 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | SSE 6 | S 6 | S 5 | S 5 | E 9 | E 9 | SW 16 | SW 17 | SW 18 | NE 8 | NE 8 | NE 8 | NNE 7 | S 12 | S 12 | S 12 | NE 6 | NE 6 | NE 6 | NE 6 |
| kJ | 7 | 6 | 5 | 2 | 2 | 7 | 15 | 11 | 11 | 12 | 10 | 9 | 9 | 5 | 26 | 11 | 11 | 40 | 40 | 39 | 39 |
Swell 3 Height (m) Direction Period (s) | N 8 | N 8 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | W 13 | SW 18 | SW 18 | N 7 | S 6 | SW 18 | SE 9 | SSE 9 | S 12 | S 12 | S 12 | S 12 |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 12 | 12 | 4 | 1 | 12 | 3 | 8 | 11 | 11 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 5 | ENE 5 | ENE 8 | E 8 | — | — | ENE 8 | ENE 8 |
| kJ | 346 | 294 | 261 | 222 | 215 | 173 | 163 | 163 | 139 | 143 | 119 | 114 | 135 | 102 | 102 | 202 | 113 | — | — | 149 | 146 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 18 | 18 | 18 | 18 | 18 | 18 | 41 | 41 | 41 | 41 | 18 | 18 | 18 | 41 | 18 | 19 | 18 | 18 | 18 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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