Surf Forecasts:
How big are the waves at Inside Poipu today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 6ft (1.8m), 8s period with E swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 5.5ft (1.7m), 8s period with E swell.
- Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 13s period with SSW swell.
The current surf forecast for Inside Poipu at 4AM is: 1.9m 8s primary swell from a East direction and 0.9m 14s secondary swell from a South-southwest direction (forecast issued at 01:00am September 21). An open ocean swell of 0.2m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 6ft (1.8m) | 8s |
| Afternoon (21 Sep) | 5.5ft (1.7m) | 8s |
| Evening (21 Sep) | 3ft (0.9m) | 13s |
Table - waves today at Inside Poipu. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 28°C on Tue afternoon, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 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) | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 381 | 403 | 424 | 378 | 337 | 318 | 299 | 245 | 251 | 239 | 251 | 257 | 264 | 235 | 235 | 200 | 239 | 311 | 372 | 441 | 450 | 460 | 405 | 347 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross |
High Tide | 00:27AM0.27m | 12:54PM0.62m | 1:06AM0.32m | 1:26PM0.63m | 1:41AM0.38m | 1:54PM0.64m | ||||||||||||||||||
Low Tide | 5:19AM0.17m | 8:09PM0.18m | 6:19AM0.16m | 8:20PM0.16m | 7:08AM0.14m | 8:33PM0.13m | ||||||||||||||||||
 | |  | | | | | |  | |  | | | | | | | |  | | | | | | |
 | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 26 | 27 | 26 | 24 | 25 | 25 | 25 | 25 | 27 | 28 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 27 | 26 | 25 |
Feels °C | 24 | 23 | 24 | 25 | 26 | 25 | 24 | 25 | 26 | 27 | 25 | 27 | 29 | 28 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 |
| kJ | 350 | 341 | 336 | 331 | 322 | 304 | 299 | 236 | 232 | 229 | 229 | 215 | 161 | 153 | 146 | 104 | 106 | 106 | 106 | 106 | 106 | 106 | 104 | 75 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 13 | W 13 | S 16 | W 12 | W 12 | SW 19 | W 12 | SW 17 | SW 17 | SW 17 | SW 17 | SSW 17 | SSW 17 | SW 16 | SW 16 | SSW 16 | SW 16 |
| kJ | 11 | 10 | 9 | 9 | 9 | 9 | 21 | 30 | 30 | 20 | 25 | 25 | 57 | 25 | 72 | 75 | 76 | 77 | 117 | 115 | 132 | 122 | 166 | 121 |
Swell 3 Height (m) Direction Period (s) | NW 10 | NNW 10 | NW 10 | NW 10 | S 11 | S 11 | SW 21 | SE 9 | S 16 | W 10 | NNW 12 | SSW 19 | W 12 | SSW 17 | W 11 | S 14 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SSW 19 |
| kJ | 4 | 11 | 4 | 4 | 2 | 2 | 17 | 3 | 20 | 8 | 14 | 36 | 25 | 28 | 9 | 34 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 72 |
Wind waves Height (m) Direction Period (s) | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 9 |
| kJ | 381 | 403 | 424 | 378 | 337 | 318 | 287 | 245 | 251 | 239 | 251 | 257 | 264 | 235 | 235 | 200 | 239 | 311 | 372 | 441 | 450 | 460 | 405 | 347 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 5 | 25 | 22 | 22 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 22 | 5 | 5 | 5 | 5 | 5 | 5 | 22 | 22 | 5 | 5 | 5 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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