Surf Forecasts:
How big are the waves at Keaulanas today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3ft (0.9m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 3ft (0.9m), 14s period with SSW swell.
- Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 13s period with SSW swell.
The current surf forecast for Keaulanas at 8PM is: 0.9m 13s primary swell from a South-southwest direction (forecast issued at 01:00pm September 21). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3ft (0.9m) | 14s |
| Afternoon (21 Sep) | 3ft (0.9m) | 14s |
| Evening (21 Sep) | 3ft (0.9m) | 13s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||
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) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | SW 17 | SW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 327 | 317 | 304 | 299 | 295 | 232 | 229 | 225 | 173 | 206 | 167 | 161 | 158 | 153 | 148 | 147 | 145 | 188 | 171 | 166 | 166 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | off | off |
High Tide | 12:57PM0.60m | 1:23AM0.29m | 1:30PM0.62m | 1:55AM0.35m | 2:01PM0.61m | ||||||||||||||||
Low Tide | 8:19PM0.15m | 6:22AM0.15m | 8:31PM0.13m | 7:13AM0.14m | 8:45PM0.11m | ||||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 29 | 28 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 26 | 26 |
Feels °C | 26 | 27 | 26 | 26 | 27 | 27 | 27 | 29 | 29 | 29 | 27 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | NE 6 | NE 6 | NE 7 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 |
| kJ | 327 | 317 | 304 | 299 | 295 | 49 | 53 | 52 | 147 | 186 | 167 | 161 | 158 | 153 | 110 | 108 | 106 | 104 | 102 | 100 | 75 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | E 7 | NNW 12 | E 8 | N 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 12 | S 12 | S 12 | NE 7 | S 12 | S 12 | S 13 | S 12 | S 12 | SSW 16 | SSW 16 |
| kJ | 23 | 27 | 14 | 19 | 36 | 232 | 229 | 225 | 173 | 206 | 148 | 144 | 144 | 62 | 110 | 110 | 115 | 108 | 108 | 166 | 166 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | SW 14 | W 11 | W 11 | ESE 9 | N 13 | N 13 | N 12 | SW 19 | SW 19 | SW 19 | SW 17 | SW 17 | S 12 | SW 17 | SW 17 | SW 17 | SSW 17 | SSW 16 | S 12 | S 12 |
| kJ | 21 | 51 | 9 | 9 | 7 | 32 | 86 | 146 | 57 | 93 | 92 | 72 | 74 | 106 | 148 | 147 | 145 | 188 | 171 | 104 | 75 |
Wind waves Height (m) Direction Period (s) | NE 6 | NNE 6 | NE 6 | NE 6 | NE 6 | E 8 | — | — | NE 7 | NE 8 | NE 6 | ENE 7 | ENE 6 | — | NE 8 | ENE 8 | ENE 10 | NE 6 | ENE 10 | NE 6 | NE 6 |
| kJ | 62 | 40 | 56 | 44 | 44 | 239 | — | — | 64 | 69 | 46 | 86 | 51 | — | 75 | 84 | 151 | 38 | 151 | 46 | 50 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 5 | 2 | 2 | 2 | 0 | 0 | 0 | 5 | 5 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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