Surf Forecasts:
How big are the waves at Castles Beach today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 4ft (1.2m), 6s period with E swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 4.5ft (1.3m), 6s period with ENE swell.
- Evening surf: Evening surf (17 Jul, local time) - 5ft (1.5m), 7s period with ENE swell.
The current surf forecast for Castles Beach at 9PM is: 1.5m 7s primary swell from a East-northeast direction and 0.3m 15s secondary swell from a South-southwest direction, 0.2m 7s secondary swell from a South-southeast direction (forecast issued at 01:00pm July 17). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 4ft (1.2m) | 6s |
| Afternoon (17 Jul) | 4.5ft (1.3m) | 6s |
| Evening (17 Jul) | 5ft (1.5m) | 7s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 26°C on Fri afternoon, min 24°C on Sat night). Mainly fresh winds. | |||||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 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 7 | ENE 6 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 175 | 125 | 192 | 209 | 216 | 226 | 253 | 308 | 335 | 365 | 385 | 395 | 395 | 394 | 350 | 301 | 310 | 273 | 284 | 284 | 277 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:09PM0.83m | 5:18AM0.51m | 5:32PM0.75m | 6:30AM0.52m | 5:48PM0.68m | ||||||||||||||||
Low Tide | 10:03AM0.16m | 11:59PM0.27m | 10:43AM0.26m | 00:30AM0.24m | 11:24AM0.37m | ||||||||||||||||
 |  | |  |  | | | | | | | | |  | | | | | | | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 |
Feels °C | 24 | 26 | 26 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | NNE 7 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | NNE 9 | NNE 8 | SSW 14 | SSW 12 | SSW 12 | NNE 8 | NNE 7 | SSW 12 | SSW 12 | S 19 | S 13 | S 18 |
| kJ | 48 | 41 | 49 | 47 | 44 | 41 | 38 | 37 | 36 | 15 | 14 | 39 | 31 | 30 | 12 | 20 | 15 | 14 | 27 | 31 | 56 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SSW 16 | SE 7 | SSE 7 | SW 10 | SW 10 | W 14 | NE 9 | NE 9 | SSW 14 | SSW 14 | NNE 9 | NNE 8 | SE 9 | SSW 12 | SSW 12 | S 19 | S 19 | SSW 12 | S 18 | S 11 |
| kJ | 10 | 50 | 2 | 5 | 4 | 4 | 4 | 3 | 3 | 37 | 39 | 7 | 7 | 3 | 29 | 14 | 29 | 29 | 15 | 25 | 10 |
Swell 3 Height (m) Direction Period (s) | SE 7 | S 7 | W 14 | W 14 | S 7 | W 14 | S 9 | W 13 | S 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 21 | S 20 | S 19 | S 6 | S 6 | S 6 | SW 20 | S 13 |
| kJ | 2 | 1 | 4 | 4 | 1 | 4 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 8 | 7 | 30 | 1 | 1 | 1 | 15 | 14 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 175 | 125 | 192 | 209 | 216 | 226 | 253 | 308 | 335 | 365 | 385 | 395 | 395 | 394 | 350 | 301 | 310 | 273 | 284 | 284 | 277 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 41 | 42 | 41 | 41 | 41 | 41 | 45 | 45 | 45 | 45 | 41 | 41 | 42 | 41 | 41 | 41 | 41 | 123 | 41 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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