Surf Forecasts:
How big are the waves at Castles Beach today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 6ft (1.8m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 6ft (1.8m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Jul, local time) - 6ft (1.9m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 10PM is: 1.9m 8s primary swell from a East-northeast direction and 0.3m 13s secondary swell from a South-southwest direction, 0.2m 9s secondary swell from a North-northeast direction (forecast issued at 01:00pm July 18). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 6ft (1.8m) | 7s |
| Afternoon (18 Jul) | 6ft (1.8m) | 7s |
| Evening (18 Jul) | 6ft (1.9m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Tue morning. Warm (max 25°C on Sat afternoon, min 24°C on Sat night). Mainly fresh winds. | |||||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | |||||||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 327 | 365 | 426 | 450 | 365 | 394 | 291 | 301 | 273 | 322 | 284 | 257 | 277 | 212 | 226 | 232 | 263 | 286 | 279 | 242 | 204 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on |
High Tide | 5:32PM0.75m | 6:30AM0.52m | 5:48PM0.68m | 8:04AM0.54m | 5:54PM0.61m | ||||||||||||||||
Low Tide | 10:43AM0.26m | 00:30AM0.24m | 11:24AM0.37m | 1:03AM0.23m | 12:17PM0.48m | ||||||||||||||||
 | | |  |  | | | | |  | | | | | | |  | | |  | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 |
Temp °C | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 23 | 24 | 24 | 25 | 25 | 24 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 12 | SSW 12 | NNE 7 | NNE 8 | SSW 12 | SSW 13 | NNE 8 | S 13 | S 18 | NNE 8 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 |
| kJ | 36 | 37 | 39 | 39 | 31 | 30 | 35 | 19 | 15 | 16 | 12 | 31 | 56 | 47 | 53 | 48 | 47 | 81 | 81 | 122 | 72 |
Swell 2 Height (m) Direction Period (s) | SE 9 | NNE 9 | NNE 8 | NNE 9 | NNE 8 | SE 9 | SSW 12 | SSW 12 | S 19 | S 19 | S 19 | S 18 | S 11 | S 18 | SSW 11 | S 12 | S 13 | SW 18 | SW 18 | E 13 | S 13 |
| kJ | 3 | 8 | 14 | 8 | 7 | 3 | 29 | 29 | 29 | 29 | 27 | 25 | 10 | 55 | 12 | 11 | 31 | 13 | 12 | 3 | 29 |
Swell 3 Height (m) Direction Period (s) | NE 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 21 | S 20 | S 19 | S 6 | S 6 | SSW 12 | SE 6 | S 13 | S 11 | S 13 | SW 18 | SW 18 | E 14 | E 13 | SW 18 | E 13 |
| kJ | 3 | 3 | 3 | 3 | 3 | 8 | 7 | 30 | 1 | 1 | 15 | 1 | 14 | 10 | 3 | 13 | 13 | 4 | 3 | 12 | 13 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 327 | 365 | 426 | 450 | 365 | 394 | 291 | 301 | 273 | 322 | 284 | 257 | 277 | 212 | 226 | 232 | 263 | 286 | 279 | 242 | 204 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 45 | 47 | 47 | 41 | 41 | 42 | 41 | 41 | 41 | 41 | 41 | 41 | 18 | 18 | 18 | 18 | 41 | 41 | 45 | 18 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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