Surf Forecasts:
PKs surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2PM (local time) - 2ft (0.6m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 8PM (local time) - 6ft (1.8m), 7s period, E swell with 320 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2PM (local time) - 2ft (0.6m), 18s period with SSW swell.
Best Forecast Surf Conditions for PKs this week:
The surf forecast for PKs over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at PKs in the next 16 days are 1.8m 7s and forecast to arrive on Monday (Aug 24) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Monday (Aug 17) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 20th Aug) | 2ft (0.6m) 18s |
| Best Surf | 2PM (Thu 20th Aug) | 2ft (0.6m) 18s |
| Most Powerful | 8PM (Mon 24th Aug) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for PKs over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s get into it. The next couple of weeks are looking a bit tricky, to be honest. The first week is pretty flat and small, with the only real surf not kicking in until the very end of the month. We'll have a bit of a quiet spell before the ocean wakes up.
Right now, and through the start of next week, the swell is small and disorganized. We’ve got a mix of short-period windswell and some longer-period energy that just doesn’t have much size behind it. It’s that classic case of “plenty of lines on the chart, nothing doing on the beach.” The surf is basically super inconsistent and on the small side, often around `1ft` to `2ft`. The energy is weak, even when the direction is kind of okay. It’s not a great time to be a beginner, simply because the waves are so few and far between. The wind is cross-offshore from the ENE, which is fine, but it just doesn’t matter when there’s nothing to push.
We’ll see a slight bump in wind speed from the 23rd to the 25th, but it won’t help. The swell drops off to `2ft` and `2ft` with periods of around 13 to 16 seconds. That long-period stuff is running but with no power behind it. The energy is weak, with values like (240) and (205), and it just fizzles out. This stretch is best used for a paddle or a swim.
Now, here’s where it gets interesting. The surf finally wakes up around Wednesday the 26th and into the beginning of September. We’ve got a pulse of easterly windswell coming in that will bring some size, but it’s a messy, short-period swell at 8 seconds. This is not a clean, groomed groundswell, this is the ocean getting churned up. The size builds from around `7ft` on the Wednesday morning to `8ft` by Friday afternoon, and the energy readings jump way up into the (727) to (1092) range – that’s strong.
But here’s the catch for a reef break like P-Ks on the North Shore: this east swell is short-period and pretty raw. It’s going to be bumpy. The wind holds onshore/cross-offshore from the ENE at 25 km/h. With that size and period, plus the wind, it’s going to be a mess. It might be more interesting for the kite crew than for us paddle surfers. This is definitely expert territory, if anything is even makeable. The swell direction being from the E matches what the spot likes, but the short period will make it sectiony and tough. This is another “for experts only” call, and a big one at that.
The standout, if you can call it that, looks to be Friday the 28th afternoon and into Saturday the 29th. It’s still short-period and big, with the swell at `8ft` and `8ft` from the east. The energy is still strong (1092). It’s the best of a bad bunch because the wind is still cross-offshore, but the tide might be a saving grace. It’s still going to be heavy on the reef and full of current. The longer-period south swell that shows up in the background on Thursday and Friday afternoons is a tease – it has the period (16-19 seconds) but it’s tiny, at `2ft` to `3ft`, and won’t break through the east storm surf.
After that, it backs off quickly. Sunday the 30th still has some energy at `6ft` to `6ft`, but by Monday the 31st, it’s already fading fast, dropping to `3ft` and less. The beginning of September looks flat again with weak energy (54) and no real swell. It’s looking like a rough run, with the only real size being that short-period, wind-blown east swell.
So, if you're an expert and want to test your mettle on a sketchy, blown-out day, the 28th and 29th look like your window. For everyone else, you might want to wait for the next week or so to see if something better comes along. The windows are small, and the wind is making it tough.
That’s it from me. Keep your eyes on the ocean.
Rusty
Short Range ForecastSome drizzle, heaviest during Mon afternoon. Warm (max 27°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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) | S 15 | S 14 | S 13 | E 7 | E 6 | E 7 | SW 16 | SSW 16 | SSW 18 | SSW 17 | SW 17 | SSW 17 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph | ||||||||||||||||||||
110 | 178 | 165 | 126 | 97 | 113 | 67 | 105 | 209 | 195 | 281 | 255 | 223 | 258 | 226 | 220 | 178 | 148 | 142 | 183 | |
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 | off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:54PM0.44m | 8:21AM0.53m | 5:45PM0.38m | 9:43AM0.54m | 11:10AM0.56m | 12:16PM0.59m | 1:03PM0.62m | 00:18AM0.25m | 1:41PM0.65m | 1:10AM0.28m | ||||||||||
Low Tide | 00:45AM0.12m | 2:44PM0.36m | 1:15AM0.13m | 1:58AM0.15m | 3:08AM0.15m | 4:36AM0.15m | 9:04PM0.22m | 5:46AM0.12m | 9:08PM0.21m | |||||||||||
— | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | |
7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 26 | 26 | 24 | 26 | 27 | 24 | 26 | 27 | 25 | 27 | 28 | 26 | 27 | 28 | 25 | 27 | 27 | 25 |
Feels °C | 28 | 26 | 26 | 26 | 24 | 26 | 27 | 25 | 26 | 28 | 27 | 29 | 30 | 29 | 27 | 29 | 26 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | S 14 | S 13 | S 13 | S 13 | S 12 | SE 9 | SSW 16 | SSW 18 | SSW 17 | ENE 7 | ENE 7 | ENE 7 | SW 16 | SSW 16 | WNW 11 | WNW 11 | WNW 11 | SSW 15 | SSW 14 |
42 | 178 | 165 | 121 | 78 | 44 | 42 | 105 | 209 | 195 | 78 | 61 | 52 | 258 | 226 | 123 | 166 | 103 | 142 | 183 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 6 | SSE 10 | SE 10 | SE 10 | SSW 16 | S 12 | S 12 | SSE 10 | SSE 10 | SW 17 | SSW 17 | SSW 16 | W 10 | WNW 10 | SSW 16 | SSW 16 | SSW 15 | WNW 10 | SSE 13 |
110 | 16 | 67 | 47 | 46 | 103 | 44 | 44 | 36 | 35 | 281 | 255 | 223 | 49 | 83 | 220 | 160 | 148 | 69 | 57 | |
Swell 3 Height (m) Direction Period (s) | S 15 | SE 11 | SW 6 | WNW 12 | WNW 12 | SE 10 | SW 16 | SE 9 | S 11 | S 11 | SE 9 | W 10 | W 10 | SSE 8 | SSE 15 | S 15 | SE 8 | S 13 | SE 9 | SE 10 |
104 | 40 | 14 | 50 | 48 | 24 | 67 | 22 | 23 | 23 | 21 | 54 | 50 | 28 | 71 | 109 | 33 | 92 | 53 | 39 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 7 | ENE 7 | E 7 | E 6 | E 7 | E 7 | ENE 8 | ENE 8 | ENE 7 | — | — | — | ENE 7 | ENE 7 | ENE 5 | E 6 | E 7 | ENE 7 | ENE 7 |
273 | 231 | 166 | 126 | 97 | 113 | 94 | 107 | 77 | 73 | — | — | — | 70 | 102 | 102 | 178 | 218 | 206 | 161 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 135 | 1 | 18 | 18 | 1 | 18 | 18 | 1 | 18 | 0 | 0 | 1 | 18 | 0 | 18 | 18 | 1 | 18 | 18 | 19 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the PKs Surf forecast
The above surf forecast table for PKs provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at PKs can be found by selecting the local surf guide option on the grey menu. Our PKs 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 (PKs) 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 PKs 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 PKs, camping, hotels and condos and appartments in Kaua'i, consider staying in Nawiliwili which is 16 km (10 miles) away. Alternatively, find information about places to stay and car hire in Lihue - Kauai which is 18 km (11 miles) away











