Surf Forecasts:
How big are the waves at Big Beach today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.5m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2ft (0.6m), 18s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 2ft (0.6m), 17s period with SSW swell.
The current surf forecast for Big Beach at 4AM is: 0.5m 17s primary swell from a Southwest direction (forecast issued at 07:00pm August 19). An open ocean swell of 0.8m 8s is not directed at the surf break, a second open ocean swell of 1.0m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 1.5ft (0.5m) | 18s |
| Afternoon (20 Aug) | 2ft (0.6m) | 18s |
| Evening (20 Aug) | 2ft (0.6m) | 17s |
Table - waves today at Big Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Sat afternoon, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | |||||||||||||||||
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) | SW 16 | SSW 16 | SW 16 | SW 16 | SW 17 | SW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SSW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 71 | 102 | 66 | 129 | 140 | 150 | 207 | 207 | 202 | 186 | 179 | 278 | 291 | 298 | 219 | 171 | 119 | 261 | 261 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | glassy | glassy | glassy | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 12:36PM0.42m | 1:29PM0.46m | |||||||||||||||||
Low Tide | 1:51AM0.07m | 3:14AM0.08m | |||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:50 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 27 |
Feels °C | 28 | 28 | 27 | 28 | 28 | 30 | 30 | 30 | 31 | 29 | 29 | 29 | 29 | 29 | 30 | 31 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | S 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | SW 16 | SW 17 | SW 17 | SW 16 | SSW 16 | E 5 | SW 16 | SW 16 |
| kJ | 104 | 102 | 45 | 94 | 72 | 54 | 54 | 41 | 40 | 40 | 40 | 278 | 291 | 298 | 219 | 171 | 34 | 261 | 261 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | SW 16 | SW 16 | SW 17 | SW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | E 7 | W 10 | E 8 | W 11 | W 11 | SW 16 | S 13 | S 13 |
| kJ | 71 | 72 | 66 | 129 | 140 | 150 | 207 | 207 | 202 | 186 | 179 | 38 | 31 | 32 | 36 | 37 | 119 | 85 | 85 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 16 | SSW 19 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | W 11 | W 10 | S 11 | W 10 | S 11 | S 11 | W 11 | WNW 10 | WNW 10 |
| kJ | 65 | 102 | 37 | 45 | 44 | 41 | 21 | 21 | 21 | 20 | 35 | 32 | 37 | 31 | 37 | 37 | 55 | 34 | 33 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | ENE 7 | — | — | — | — | ENE 2 | NE 7 | NE 7 | E 7 | E 4 | E 4 | E 5 | E 5 | E 5 | E 5 |
| kJ | 157 | 153 | 99 | 118 | 97 | — | — | — | — | 1 | 38 | 49 | 49 | 12 | 24 | 62 | 59 | 53 | 90 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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