Surf Forecasts:
How big are the waves at Sandy Beach today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 2ft (0.6m), 16s period with S swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 2.5ft (0.8m), 16s period with S swell.
- Evening surf: Evening surf (20 Jul, local time) - 4.5ft (1.4m), 7s period with ENE swell.
The current surf forecast for Sandy Beach at 6PM is: 0.7m 16s primary swell from a South direction and 1.3m 7s secondary swell from a East-northeast direction (forecast issued at 01:00pm July 20). An open ocean swell of 0.4m 18s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 2ft (0.6m) | 16s |
| Afternoon (20 Jul) | 2.5ft (0.8m) | 16s |
| Evening (20 Jul) | 4.5ft (1.4m) | 7s |
Table - waves today at Sandy Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Warm (max 26°C on Mon afternoon, min 24°C on Tue night). Winds increasing (light winds from the ENE on Tue morning, strong winds from the ENE by Wed night). | |||||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||||
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 | S 16 | S 16 | ENE 7 | ENE 7 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 24 | ENE 7 | ENE 7 | SSW 23 | ENE 12 | SSW 22 |
Wave Graph  | |||||||||||||||||||||
 kJ | 173 | 325 | 321 | 214 | 212 | 339 | 339 | 267 | 329 | 320 | 311 | 289 | 281 | 277 | 273 | 289 | 171 | 144 | 426 | 503 | 485 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on |
High Tide | 8:59AM0.45m | 7:13PM0.37m | 10:08AM0.51m | 7:46PM0.29m | 11:08AM0.55m | 8:50PM0.23m | |||||||||||||||
Low Tide | 2:57PM0.28m | 2:33AM0.04m | 5:25PM0.28m | 3:12AM0.05m | 7:38PM0.23m | ||||||||||||||||
 | | |  | |  | |  | | |  | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | — | — | 7:14 | — | — | — | — | — | — | — | 7:14 | — | — | — | — | — | — | — | 7:13 | — | — |
mm | — | — | — | — | — | 1 | 2 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 23 | 24 | 24 | 24 | 22 | 21 | 22 | 22 | 23 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 16 | S 16 | S 16 | S 13 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 7 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | E 12 | E 12 | E 11 | S 13 | S 13 |
| kJ | 142 | 325 | 321 | 177 | 121 | 158 | 158 | 136 | 132 | 65 | 311 | 289 | 281 | 277 | 273 | 215 | 138 | 132 | 123 | 209 | 160 |
Swell 2 Height (m) Direction Period (s) | S 16 | SW 18 | SW 18 | S 13 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | SW 16 | E 7 | E 13 | E 13 | E 12 | E 12 | S 13 | S 11 | SSW 23 | SSW 22 | SSW 22 |
| kJ | 135 | 82 | 81 | 121 | 163 | 339 | 339 | 267 | 329 | 320 | 67 | 63 | 85 | 121 | 107 | 103 | 128 | 79 | 426 | 387 | 485 |
Swell 3 Height (m) Direction Period (s) | SW 18 | W 12 | W 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 17 | E 7 | E 11 | SSW 16 | SW 15 | SW 15 | SSW 26 | S 24 | S 11 | S 13 | S 13 | SSW 18 | SW 18 |
| kJ | 83 | 11 | 11 | 78 | 71 | 69 | 69 | 70 | 72 | 46 | 39 | 97 | 60 | 60 | 217 | 289 | 58 | 126 | 125 | 120 | 150 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | — | — | E 7 | — | — | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 12 | ENE 6 |
| kJ | 173 | 173 | 193 | 214 | 212 | — | — | 83 | — | — | 136 | 89 | 136 | 158 | 176 | 200 | 171 | 144 | 125 | 503 | 179 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 47 | 50 | 47 | 16 | 16 | 16 | 14 | 16 | 47 | 47 | 16 | 47 | 47 | 47 | 48 | 47 | 47 | 47 | 47 | 48 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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