Surf Forecasts:
How big are the waves at Old Kona Airport State Park today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 1ft (0.3m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 3ft (0.9m), 7s period with NNE swell.
- Evening surf: Evening surf (20 Oct, local time) - 3.5ft (1.0m), 7s period with NNE swell.
The current surf forecast for Old Kona Airport State Park at 4PM is: 0.9m 7s primary swell from a North-northeast direction and 0.3m 3s secondary swell from a West-northwest direction (forecast issued at 01:00pm October 20). An open ocean swell of 0.3m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 1ft (0.3m) | 16s |
| Afternoon (20 Oct) | 3ft (0.9m) | 7s |
| Evening (20 Oct) | 3.5ft (1.0m) | 7s |
Table - waves today at Old Kona Airport State Park. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 26°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 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) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | SW 15 | SW 15 | SW 15 | SW 15 | NNE 8 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 93 | 99 | 79 | 99 | 85 | 68 | 70 | 50 | 50 | 56 | 68 | 68 | 54 | 50 | 54 | 53 | 51 | 49 | 71 | 46 | 45 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | off | cross-off | cross-on | glassy | glassy | cross-on | cross-on | cross | cross-on | glassy | glassy | glassy | glassy | cross-on | on | on | cross-on | glassy |
High Tide | 11:40AM0.59m | 00:43AM0.39m | 12:22PM0.57m | 1:19AM0.47m | 1:01PM0.54m | ||||||||||||||||
Low Tide | 6:45PM0.09m | 6:03AM0.18m | 7:08PM0.06m | 7:03AM0.16m | 7:31PM0.04m | ||||||||||||||||
 |  | |  |  |  | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — |
mm | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 29 | 29 | 29 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 26 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NE 7 | NNE 7 | NNE 7 | NE 7 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NE 7 | NNE 7 | NNE 5 | NNE 5 |
| kJ | 93 | 99 | 79 | 99 | 85 | 68 | 70 | 50 | 50 | 56 | 68 | 68 | 56 | 50 | 32 | 31 | 21 | 27 | 35 | 13 | 19 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | SW 15 | S 12 | S 13 | S 4 | S 4 | S 4 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | NE 7 | SW 13 |
| kJ | 21 | 21 | 21 | 56 | 24 | 29 | 4 | 3 | 3 | 56 | 54 | 54 | 54 | 33 | 54 | 53 | 51 | 49 | 71 | 14 | 45 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 14 | SSW 14 | S 11 | SW 15 | S 5 | SW 16 | SW 16 | SW 15 | S 4 | S 12 | S 11 | S 11 | SSE 11 | S 4 | S 4 | S 4 | S 11 | SSE 11 | SW 13 | NE 8 |
| kJ | 62 | 19 | 19 | 21 | 37 | 4 | 39 | 39 | 37 | 3 | 11 | 10 | 10 | 24 | 4 | 3 | 1 | 21 | 22 | 46 | 16 |
Wind waves Height (m) Direction Period (s) | — | W 2 | WNW 3 | WNW 3 | W 3 | — | WNW 2 | WNW 2 | WNW 2 | WNW 3 | S 4 | S 2 | S 3 | SSW 3 | — | — | — | SW 4 | — | — | — |
| kJ | — | 1 | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 16 | 127 | 0 | 0 | 0 | 0 | 0 | 11 | 104 | 104 | 0 | 6 | 11 | 0 | 0 | 0 | 100 | 104 | 11 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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