Surf Forecasts:
How big are the waves at Sixtynine today (18 Sep):
- Afternoon surf: Afternoon surf (18 Sep, local time) - 0.5ft (0.2m), 9s period with WSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 0.5ft (0.2m), 9s period with WSW swell.
The current surf forecast for Sixtynine at 7PM is: 0.2m 9s primary swell from a West-southwest direction (forecast issued at 01:00pm September 18). An open ocean swell of 1.0m 7s is not directed at the surf break, a second open ocean swell of 0.5m 17s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | 0.5ft (0.2m) | 9s |
| Evening (18 Sep) | 0.5ft (0.2m) | 9s |
Table - waves today at Sixtynine. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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) | SW 18 | WSW 9 | WSW 9 | WSW 9 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 108 | 8 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 34 | 34 | 0 | 33 | 33 | 33 | 33 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off |
High Tide | 10:00AM0.55m | 9:49PM0.17m | 11:20AM0.56m | 00:02AM0.19m | 12:22PM0.59m | ||||||||||||||||
Low Tide | 7:14PM0.16m | 2:31AM0.12m | 7:39PM0.13m | 4:23AM0.13m | 7:59PM0.11m | ||||||||||||||||
 |  | |  |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 26 | 26 | 26 | 25 | 27 | 29 | 29 | 28 | 27 | 26 | 25 | 25 | 26 | 29 | 28 | 27 | 26 | 26 |
Feels °C | 31 | 32 | 30 | 28 | 28 | 28 | 26 | 28 | 30 | 30 | 29 | 30 | 29 | 27 | 27 | 27 | 30 | 30 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | NE 5 | NE 7 | NE 7 | NE 7 | NE 5 | NNE 6 | NE 6 | NNE 7 | NE 6 | NE 6 | NE 6 | NE 6 | SW 16 | NE 6 | NNE 6 | NE 6 | NE 6 | SW 15 | SSW 15 | NNE 6 | SSW 14 |
| kJ | 23 | 91 | 105 | 88 | 32 | 28 | 37 | 15 | 61 | 83 | 59 | 58 | 61 | 33 | 41 | 32 | 32 | 33 | 42 | 56 | 39 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | ENE 8 | SW 16 | SW 15 | SSW 15 | SSW 15 | NNE 7 | SW 15 | SSW 14 | SW 15 |
| kJ | 108 | 148 | 145 | 143 | 135 | 127 | 65 | 64 | 64 | 63 | 64 | 64 | 7 | 62 | 34 | 44 | 42 | 9 | 33 | 41 | 33 |
Swell 3 Height (m) Direction Period (s) | NNE 7 | WSW 9 | WSW 9 | WSW 9 | NNE 7 | ENE 8 | ENE 8 | NE 8 | ENE 8 | SSW 16 | SSW 16 | SSW 16 | S 16 | NNE 7 | SSW 16 | SW 15 | ENE 8 | SSW 15 | W 13 | SW 15 | ENE 8 |
| kJ | 15 | 8 | 8 | 8 | 9 | 13 | 13 | 17 | 14 | 27 | 24 | 49 | 21 | 10 | 49 | 34 | 13 | 42 | 3 | 33 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NE 5 | — | — | — | — | NE 6 | — | — | — | — | NE 6 | NE 6 | — | NNE 5 |
| kJ | — | — | — | — | — | — | — | 17 | — | — | — | — | 54 | — | — | — | — | 46 | 71 | — | 37 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 3 | 3 | 3 | 3 | 5 | 29 | 29 | 94 | 5 | 5 | 29 | 29 | 42 | 29 | 38 | 29 | 94 | 94 | 38 | 29 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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