Surf Forecasts:
Polihale surf forecast from 15 Sep 2026:
- Best quality surf: Thursday 17 Sep, 5AM (local time) - 4.5ft (1.4m), 7s period, NE swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 2PM (local time) - 5ft (1.6m), 7s period, NE swell with 269 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 11AM (local time) - 2.5ft (0.8m), 8s period with NE swell.
Best Forecast Surf Conditions for Polihale this week:
The surf forecast for Polihale over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 11AM. The primary swell is predicted to be 0.8m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Polihale in the next 16 days are 1.6m 7s and forecast to arrive on Thursday (Sep 17) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 9s period and expected on Tuesday (Sep 22) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Tue 15th Sep) | 2.5ft (0.8m) 8s |
| Best Surf | 5AM (Thu 17th Sep) | 4.5ft (1.4m) 7s |
| Most Powerful | 2PM (Thu 17th Sep) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Polihale over the next 16 days.
The Lowdown
Right now, Polihale’s flat as a pancake — nothing but dribble for the first stretch. Water’s still 80°F, pretty average for the season. No surprises, just a whole lot of nothing to get excited about.
Around Thursday the 17th, we get a little bump — 5ft from the NNE at 7 seconds, light offshores, but it’s short-period and weak. It’s ridable for a morning, then it dies again. The following weekend’s a washout — waves drop to 2ft or less, and there’s some long-period west-northwest energy showing but with zero push. Just tease.
The real story starts late in the month. Friday the 25th brings that long-period WNW — only 2ft, but a 20-second swell and energy climbing to 371. That’s the first hint something’s moving. But the standout is Saturday the 26th: 4ft from the NW at 16 seconds, energy jumping to 719, and the wind going glassy with a touch of offshore. Clean and lined up — that afternoon is money. Sunday holds at 4-4ft, still clean, though t-storms are possible.
Then Monday the 28th is the big one. Swell pushes to 6-6ft from the NNE at 9 seconds, with offshore winds and very good conditions. Energy’s at 520-529, and it’s clean both halves of the day. Tuesday the 29th tops it — 7ft from the NNE, energy at 711, and the afternoon goes fully offshore with light breeze. That’s expert territory, no question. Wednesday the 30th eases off to 6ft, still clean and good, but the peak’s passed.
So the window to circle is Saturday the 26th through Tuesday the 29th — Monday and Tuesday are the absolute best. Long period, clean winds, solid size. Just watch those t-storms — they can flip a perfect session sideways.
That 16-second period is a long one — at a sandbar like Polihale, it can section off and break too straight. You’ll want the banks working with you. But when it clicks, it’s a proper session.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 28°C on Thu afternoon, min 25°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NNE 7 | NNE 6 | NNE 7 | NNE 7 | NNE 6 | NNE 6 | NNE 6 | N 11 | W 12 | W 12 | W 11 | NNW 13 | NNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 93 | 50 | 94 | 91 | 104 | 164 | 241 | 0 | 117 | 55 | 64 | 50 | 32 | 35 | 34 | 10 | 11 | 11 | 9 | 16 | 74 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:06PM0.33m | 7:32AM0.53m | 8:53AM0.52m | 10:22AM0.53m | 11:29AM0.54m | 11:14PM0.20m | 12:15PM0.57m | 00:18AM0.24m | 12:51PM0.58m | 00:56AM0.28m | |||||||||||
Low Tide | 1:33PM0.31m | 11:13PM0.11m | 11:36PM0.12m | 00:08AM0.14m | 1:19AM0.16m | 8:57PM0.20m | 8:20PM0.19m | 8:17PM0.18m | |||||||||||||
 |  |  | |  | | | | | |  | | | | | | | | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 26 | 27 | 28 | 26 | 27 | 28 | 27 |
Feels °C | 29 | 29 | 30 | 31 | 30 | 29 | 29 | 31 | 29 | 30 | 29 | 28 | 29 | 30 | 27 | 29 | 31 | 28 | 30 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 6 | SW 18 | SSW 17 | E 10 | SW 16 | E 9 | ENE 8 | NNE 7 | E 8 | E 8 | E 8 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | ENE 8 |
| kJ | 93 | 50 | 94 | 91 | 316 | 190 | 71 | 268 | 282 | 284 | 64 | 191 | 219 | 191 | 269 | 324 | 365 | 355 | 265 | 247 | 326 |
Swell 2 Height (m) Direction Period (s) | SSW 20 | SSW 19 | SSW 19 | SSW 18 | E 10 | E 10 | SSW 16 | SSW 20 | NNE 7 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | NNE 6 | N 11 | N 11 | NNW 10 | NNW 10 | W 11 | SSW 13 |
| kJ | 256 | 251 | 246 | 273 | 33 | 52 | 169 | 77 | 117 | 459 | 427 | 326 | 263 | 273 | 34 | 10 | 9 | 11 | 9 | 10 | 232 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | E 11 | E 11 | SSW 11 | SW 11 | SSW 20 | SSW 10 | SSW 18 | NNE 6 | NW 9 | NNE 7 | NNE 6 | NNE 6 | SSW 14 | NW 9 | W 12 | W 12 | W 11 | NNW 13 | NNW 11 |
| kJ | 31 | 29 | 22 | 37 | 12 | 19 | 149 | 10 | 491 | 55 | 3 | 50 | 32 | 35 | 71 | 3 | 11 | 11 | 9 | 16 | 74 |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 5 | — | ENE 6 | NE 6 | NE 7 | NE 7 | NE 7 | — | — | E 8 | — | — | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — |
| kJ | 12 | 14 | — | 106 | 104 | 164 | 241 | 349 | — | — | 196 | — | — | 297 | 224 | 266 | 295 | 259 | 259 | 266 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 8 | 0 | 0 | 8 | 0 | 0 | 8 | 8 | 0 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Polihale Surf forecast
The above surf forecast table for Polihale provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Polihale can be found by selecting the local surf guide option on the grey menu. Our Polihale surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Polihale) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Polihale may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a vacation in Kaua'i? If you are looking for accommodation near Polihale, camping, hotels and condos and appartments in Kaua'i, consider staying in Nawiliwili which is 43 km (27 miles) away. Alternatively, find information about places to stay and car hire in Lihue - Kauai which is 45 km (28 miles) away
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