Surf Forecasts:
How big are the waves at Inside Poipu today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.0m), 17s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.0m), 17s period with SSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.0m), 16s period with SSW swell.
The current surf forecast for Inside Poipu at 9AM is: 1.0m 17s primary swell from a South-southwest direction and 0.2m 10s secondary swell from a South-southeast direction, 1.6m 9s secondary swell from a East-northeast direction (forecast issued at 01:00am September 18). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.0m) | 17s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 17s |
| Evening (18 Sep) | 3.5ft (1.0m) | 16s |
Table - waves today at Inside Poipu. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Warm (max 28°C on Fri afternoon, min 25°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||||||
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) | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | E 8 | SSW 16 | SSW 16 | E 8 | E 8 | E 8 | SSW 16 | SSW 16 | E 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 651 | 637 | 576 | 459 | 530 | 566 | 559 | 452 | 487 | 392 | 382 | 391 | 412 | 382 | 432 | 443 | 407 | 452 | 446 | 419 | 387 | 387 | 468 | 365 |
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-on | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | cross-on | cross | cross | cross | cross |
High Tide | 10:07AM0.55m | 11:24AM0.57m | 11:20PM0.23m | 12:16PM0.59m | ||||||||||||||||||||
Low Tide | 00:35AM0.16m | 1:49AM0.18m | 8:18PM0.22m | 3:53AM0.19m | 8:04PM0.20m | |||||||||||||||||||
 | |  |  | |  |  | | | | | | | | | | | | | | | | | | |
 | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:36 | — | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 27 | 28 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 28 | 27 | 25 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 25 | 26 | 25 | 27 | 28 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 651 | 637 | 576 | 459 | 530 | 566 | 559 | 452 | 487 | 392 | 382 | 367 | 377 | 382 | 382 | 257 | 346 | 452 | 446 | 419 | 387 | 387 | 468 | 365 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSW 19 | SE 7 | SE 7 | SE 9 | SE 9 | SE 8 | S 18 | S 18 | SSW 16 | SSW 14 | W 13 | SE 8 | SE 8 | SE 8 | SE 6 | W 12 | W 12 |
| kJ | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 72 | 26 | 12 | 39 | 39 | 46 | 154 | 99 | 223 | 104 | 3 | 34 | 35 | 31 | 20 | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 9 | S 20 | WSW 9 | S 21 | S 21 | W 9 | S 20 | S 20 | S 20 | S 18 | S 18 | W 8 | S 13 | S 13 | S 13 | N 12 | W 13 | W 13 | W 12 | W 12 | S 12 | S 12 |
| kJ | 8 | 8 | 8 | 33 | 8 | 36 | 35 | 6 | 67 | 67 | 67 | 162 | 162 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 11 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 |
| kJ | 436 | 427 | 453 | 349 | 341 | 334 | 326 | 381 | 314 | 318 | 359 | 391 | 412 | 368 | 432 | 443 | 407 | 363 | 318 | 341 | 293 | 295 | 349 | 351 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 5 | 22 | 5 | 5 | 40 | 5 | 5 | 5 | 5 | 5 | 25 | 25 | 25 | 5 | 5 | 5 | 5 | 5 | 22 | 22 | 25 | 5 | 5 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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