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Surf Forecasts:
Inside Poipu surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 am Sunday 31 May 2026 HSTForecast update in hr min s Forecast update imminent
Inside Poipu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Inside Poipu sea temperature is
25.2° C
(Which is normal for this time of year)How big are the waves at Inside Poipu today (31 May):
- Morning surf: Morning surf (31 May, local time) - 2.5ft (0.8m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.8m), 15s period with SSW swell.
- Evening surf: Evening surf (31 May, local time) - 2.5ft (0.8m), 14s period with SSW swell.
The current surf forecast for Inside Poipu at 7AM is: 0.9m 16s primary swell from a South-southwest direction and 0.4m 8s secondary swell from a East direction, 0.7m 7s secondary swell from a East-northeast direction (forecast issued at 01:00am May 31). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 2.5ft (0.8m) | 15s |
| Afternoon (31 May) | 2.5ft (0.8m) | 15s |
| Evening (31 May) | 2.5ft (0.8m) | 14s |
Table - waves today at Inside Poipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Warm (max 26°C on Sun afternoon, min 22°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSW 16 | SSW 16 | SSW 15 | S 15 | S 15 | SSW 15 | SSW 14 | S 20 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | SSW 17 | S 16 | S 20 | S 20 | S 20 | S 20 | S 16 | SSW 18 | S 18 | |
416 | 406 | 316 | 287 | 275 | 284 | 280 | 276 | 369 | 365 | 350 | 408 | 639 | 632 | 625 | 487 | 548 | 535 | 635 | 635 | 643 | 620 | 1259 | 1051 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | |
High Tide | 2:48AM0.29m | 4:20PM0.73m | 3:21AM0.28m | 4:56PM0.72m | 3:55AM0.27m | 5:33PM0.71m | ||||||||||||||||||
Low Tide | 11:04PM0.22m | 8:36AM0.04m | 11:44PM0.21m | 9:08AM0.05m | 00:28AM0.21m | 9:41AM0.06m | ||||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | | |  | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 23 | 22 | 23 | 25 | 26 | 25 | 24 | 23 | 22 | 22 | 23 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 24 |
24 | 23 | 23 | 25 | 26 | 25 | 25 | 23 | 22 | 22 | 23 | 25 | 25 | 25 | 22 | 23 | 23 | 23 | 22 | 24 | 24 | 24 | 24 | 24 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | S 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 19 | S 18 | S 18 | S 18 | S 18 | SSW 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | SSW 18 | S 18 |
 kJ | 416 | 406 | 316 | 287 | 275 | 284 | 280 | 276 | 276 | 213 | 350 | 408 | 639 | 632 | 625 | 487 | 548 | 535 | 635 | 635 | 643 | 620 | 1259 | 1051 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | E 8 | S 11 | S 11 | SSE 10 | SSE 10 | S 20 | S 19 | S 19 | SSW 14 | SSW 14 | S 14 | S 13 | S 13 | S 21 | S 21 | S 20 | S 20 | S 20 | S 20 | SSW 19 | NNW 11 | SSW 14 |
| kJ | 38 | 37 | 18 | 36 | 35 | 36 | 35 | 276 | 369 | 365 | 213 | 207 | 132 | 87 | 126 | 441 | 436 | 510 | 611 | 611 | 611 | 497 | 11 | 215 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | S 11 | SE 8 | S 21 | S 21 | SSW 20 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 22 | S 22 | S 13 | S 13 | S 13 | NNW 9 | NNW 11 | N 11 | NNW 11 | SE 11 | NNW 10 |
| kJ | 9 | 9 | 37 | 11 | 79 | 79 | 132 | 19 | 8 | 17 | 17 | 7 | 7 | 146 | 227 | 125 | 125 | 126 | 8 | 12 | 10 | 12 | 5 | 20 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 7 | E 7 | ENE 7 | E 7 | E 7 | E 6 | ENE 6 | ENE 6 | ENE 6 | E 6 | E 6 | E 6 |
| kJ | 99 | 73 | 48 | 73 | 94 | 112 | 117 | 117 | 117 | 97 | 94 | 94 | 112 | 112 | 114 | 97 | 92 | 66 | 69 | 77 | 126 | 165 | 200 | 206 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 5 | 5 | 22 | 5 | 22 | 5 | 1 | 1 | 1 | 5 | 22 | 22 | 22 | 5 | 5 | 5 | 5 | 5 | 5 | 22 | 22 | 5 | 5 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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