Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (21 Jun):
- Morning surf: Morning surf (21 Jun, local time) - 1.5ft (0.5m), 19s period with S swell.
- Afternoon surf: Afternoon surf (21 Jun, local time) - 1.5ft (0.5m), 19s period with S swell.
- Evening surf: Evening surf (21 Jun, local time) - 2ft (0.6m), 18s period with S swell.
The current surf forecast for Kahalu'u Beach Park at 8AM is: 0.5m 19s primary swell from a South direction and 0.7m 13s secondary swell from a South direction, 0.3m 9s secondary swell from a Northwest direction (forecast issued at 01:00am June 21). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jun) | 1.5ft (0.5m) | 19s |
| Afternoon (21 Jun) | 1.5ft (0.5m) | 19s |
| Evening (21 Jun) | 2ft (0.6m) | 18s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 27°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||||||||||||
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 | 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) | S 14 | S 14 | S 19 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | SSW 15 | SSW 18 | SSW 21 | S 15 | S 19 | S 19 | S 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 203 | 192 | 184 | 184 | 184 | 184 | 227 | 304 | 225 | 225 | 153 | 134 | 188 | 188 | 188 | 132 | 134 | 74 | 103 | 89 | 112 | 182 | 190 | 273 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross | cross | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 10:18AM0.49m | 8:58PM0.55m | 11:27AM0.56m | 9:46PM0.46m | 12:21PM0.63m | 10:45PM0.40m | ||||||||||||||||||
Low Tide | 3:31AM0.12m | 3:17PM0.35m | 4:08AM0.11m | 5:15PM0.37m | 4:44AM0.11m | 7:04PM0.34m | ||||||||||||||||||
 | |  | | |  |  | |  |  | | | | | | | | | | | | | | | |
 | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — |
mm | 1 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 27 | 27 | 26 | 25 | 26 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 24 | 26 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 28 | 28 | 28 | 30 | 30 | 28 | 28 | 29 | 27 | 27 | 28 | 30 | 29 | 28 | 29 | 28 | 26 | 26 | 29 | 29 | 29 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | SSW 15 | S 12 | SSW 12 | S 15 | S 19 | S 19 | S 19 |
| kJ | 203 | 192 | 176 | 173 | 171 | 171 | 168 | 166 | 161 | 112 | 106 | 134 | 188 | 188 | 188 | 132 | 134 | 74 | 43 | 44 | 112 | 182 | 190 | 273 |
Swell 2 Height (m) Direction Period (s) | SW 18 | S 20 | S 19 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | S 17 | S 12 | S 12 | S 12 | S 12 | SSW 12 | S 12 | S 12 | SSW 18 | SSW 15 | SSW 11 | SSW 15 | S 16 | S 16 |
| kJ | 79 | 69 | 184 | 184 | 184 | 184 | 227 | 304 | 225 | 225 | 153 | 73 | 72 | 72 | 72 | 47 | 44 | 43 | 103 | 71 | 42 | 76 | 126 | 131 |
Swell 3 Height (m) Direction Period (s) | S 21 | SW 18 | SSW 17 | WNW 9 | WNW 9 | SSW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | S 4 | SSW 15 | SSW 21 | SSW 21 | SSW 11 | S 11 | S 11 |
| kJ | 36 | 48 | 30 | 8 | 8 | 25 | 40 | 40 | 40 | 24 | 22 | 21 | 33 | 33 | 33 | 33 | 21 | 3 | 42 | 89 | 87 | 41 | 21 | 20 |
Wind waves Height (m) Direction Period (s) | WNW 9 | NW 9 | NW 9 | NW 9 | — | — | — | S 13 | SSE 4 | NW 9 | NNW 9 | NNW 9 | — | — | — | SSW 3 | SW 3 | NW 3 | NNW 3 | — | NNW 3 | — | — | — |
| kJ | 8 | 13 | 13 | 13 | — | — | — | 212 | 6 | 3 | 8 | 8 | — | — | — | 3 | 5 | 2 | 2 | — | 1 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 94 | 94 | 75 | 128 | 1 | 1 | 13 | 2 | 6 | 99 | 99 | 99 | 125 | 0 | 94 | 81 | 6 | 0 | 99 | 99 | 96 | 13 | 94 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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