Surf Forecasts:
Polihale surf forecast from 16 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 8AM (local time) - 1.5ft (0.4m), 12s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 1.5ft (0.5m), 16s period, SW swell with 130 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 8AM (local time) - 1.5ft (0.4m), 12s period with WNW 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 Wednesday (Aug 19) at 8AM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.6m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Polihale in the next 16 days are 0.5m 16s and forecast to arrive on Thursday (Aug 20) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Sunday (Aug 16) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 19th Aug) | 1.5ft (0.4m) 12s |
| Best Surf | 8AM (Wed 19th Aug) | 1.5ft (0.4m) 12s |
| Most Powerful | 11PM (Thu 20th Aug) | 1.5ft (0.5m) 16s |
Table - best surf conditions forecast for Polihale over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let's get into what's happening at Polihale over the next couple weeks. Gotta be straight with you – it's a pretty quiet stretch overall. The standout period is actually the tail end of the forecast, around the 30th of August, where we see some real promise.
We’re looking at a lot of marginal days to start. From now through the end of this week, the swell is tiny, mostly around 1 feet or less, with a lot of poor surf conditions. The wind is mostly cross-off or glassy, especially from Wednesday the 19th onward, with some beautiful glassy mornings on the 20th, but the waves just aren't there. The combined wave energy is weak, so there's no grunt. It's a classic case of the ocean being flat and clean, but flat nonetheless.
Moving into the 21st of August, things start to nudge upwards. We get a little push of 3-foot swell from the NE, and energy picks up a bit. The morning is glassy calm, and conditions are surfable but very ordinary. It’s a foamy, slow day for a longboard, but nothing to get excited about. Then we hit a real dry spell from the afternoon of the 22nd through the 24th, with no surf and poor conditions.
The 25th of August brings a change. The swell picks up to about 3 feet from the WNW, with a period of 12 seconds, and the energy jumps into moderate territory. It's coming through with a cross-shore wind, though, so it's not clean. Still, you can see the ocean has some life in it. This pattern of small, clean, but weak WNW swell continues through to the 28th. These are clean, glassy mornings where you can find a waist-high wave if you're patient, but it's not pumping.
Now, here's where it gets interesting. On Saturday, the 30th of August, we’ve got a real standout. The morning shows a 2-foot swell from the SW, but look at that period – 17 seconds. That’s a very long period groundswell. The combined energy is strong. The wind is glassy. The forecast says "expect good surf conditions." This is the one to circle on the calendar. With that long period and clean conditions, Polihale’s sandbar (Kauai) should offer some lined-up, well-shaped waves if the direction works. The afternoon backs off a little, but that morning window is golden. After that, the 31st of August sees a drop-off again.
So, the best bet is the morning of Saturday, the 30th of August. It’s two weeks away so keep your fingers crossed, but the signs are good for a clean, glassy session with some real energy. Water temp is about average for this time of year.
Stay patient, stay stoked.
Rusty
Short Range ForecastHeavy rain (total 26mm), heaviest during Sun afternoon. Warm (max 28°C on Mon morning, min 25°C on Mon night). Winds decreasing (fresh winds from the ENE on Sun morning, light winds from the E by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue night, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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) | WNW 12 | WNW 12 | E 10 | E 8 | E 8 | ENE 8 | WNW 11 | WNW 13 | WNW 12 | WNW 12 | NE 7 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 8 | NE 7 |
Wave Graph | |||||||||||||||||||
49 | 47 | 0 | 0 | 0 | 0 | 22 | 57 | 49 | 48 | 36 | 49 | 56 | 46 | 55 | 55 | 79 | 82 | 79 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | glassy | cross-off | cross-off | glassy | glassy | glassy |
High Tide | 6:19AM0.45m | 5:22PM0.46m | 7:21AM0.47m | 5:22PM0.40m | 8:38AM0.49m | 10:07AM0.51m | 11:26AM0.53m | 12:23PM0.57m | |||||||||||
Low Tide | 11:49PM0.12m | 11:46AM0.27m | 00:11AM0.12m | 12:59PM0.33m | 00:34AM0.12m | 1:02AM0.13m | 1:44AM0.13m | 2:53AM0.14m | 4:19AM0.13m | ||||||||||
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | |
7:09 | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | |
mm | — | 12 | 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 28 | 28 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 |
Feels °C | 27 | 26 | 27 | 27 | 30 | 29 | 28 | 28 | 29 | 28 | 28 | 28 | 30 | 30 | 28 | 30 | 28 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 12 | ENE 8 | ENE 8 | S 7 | S 14 | S 13 | S 13 | ENE 7 | E 9 | NE 6 | NE 6 | NE 6 | E 8 | NE 7 | NE 7 | NE 8 | NE 7 |
165 | 112 | 110 | 603 | 306 | 56 | 191 | 121 | 121 | 60 | 74 | 49 | 56 | 46 | 31 | 55 | 79 | 82 | 79 | |
Swell 2 Height (m) Direction Period (s) | WNW 12 | S 17 | S 8 | S 7 | S 7 | S 15 | S 6 | WNW 13 | WNW 12 | S 13 | NE 7 | E 9 | E 8 | E 8 | SSW 17 | SSW 16 | SSW 17 | SSW 16 | SSW 16 |
49 | 95 | 33 | 43 | 61 | 104 | 19 | 57 | 49 | 80 | 36 | 53 | 33 | 46 | 119 | 181 | 197 | 173 | 171 | |
Swell 3 Height (m) Direction Period (s) | NNW 8 | WNW 12 | S 16 | S 13 | S 14 | S 12 | WNW 11 | S 6 | SSW 6 | WNW 12 | S 12 | S 12 | S 12 | SSW 18 | S 11 | E 8 | SW 8 | S 11 | S 11 |
13 | 47 | 127 | 119 | 206 | 71 | 22 | 6 | 6 | 48 | 69 | 44 | 44 | 123 | 39 | 18 | 11 | 21 | 21 | |
Wind waves Height (m) Direction Period (s) | ENE 10 | ENE 10 | E 10 | E 8 | E 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | — | — | — | — | — | NE 7 | — | — | — | — |
1397 | 2269 | 1432 | 783 | 441 | 244 | 163 | 105 | 82 | — | — | — | — | — | 55 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 8 | 374 | 178 | 170 | 8 | 8 | 8 | 8 | 8 | 8 | 14 | 8 | 8 | 8 | 8 | 8 | 0 | 0 | 0 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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










