
Surf Forecasts:
Kalapaki Beach surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 5AM (local time) - 6.5ft (2.0m), 11s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 5PM (local time) - 6.5ft (2.0m), 13s period, E swell with 1,380 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 5AM (local time) - 6.5ft (2.0m), 11s period with E swell.
Best Forecast Surf Conditions for Kalapaki Beach this week:
The surf forecast for Kalapaki Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 5AM. The primary swell is predicted to be 2.0m and 11s period with a secondary swell of 0.7m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kalapaki Beach in the next 16 days are 2.0m 13s and forecast to arrive on Tuesday (Jul 28) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Monday (Jul 27) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 29th Jul) | 6.5ft (2.0m) 11s |
| Best Surf | 5AM (Wed 29th Jul) | 6.5ft (2.0m) 11s |
| Most Powerful | 5PM (Tue 28th Jul) | 6.5ft (2.0m) 13s |
Table - best surf conditions forecast for Kalapaki Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at the surf on offer for Kalapaki Beach.
First up, the water temp is sitting right around 80°, which is pretty much normal for this time of year – no surprises there.
The outlook starts off quiet. Monday the 27th is a write-off with poor conditions and a messy cross-shore breeze. You’re better off staying on the beach.
Things start to look up on Tuesday the 28th. The morning is still marginal with a storm risk, but by Tuesday afternoon the wind shifts to a cross-offshore breeze, and we’ve got a clean 7 ft swell from the east with a 13-second period. That’s moderate wave energy (1556) and the sea should be looking good. Not a standout, but a decent session if you’re keen.
Now, Wednesday the 29th is where it’s at. Wednesday morning brings a light offshore breeze from the north, 7 ft of east-northeast swell with a 10-second period, and clean conditions. The combined energy is strong (1246). This is the best of the early window – solid, clean, and good for experienced surfers. Then Wednesday afternoon goes glassy. Zero wind, 7 ft swell, and the ocean turns to glass. That’s a proper standout session. If you’re an experienced surfer, this is the one to aim for.
After that, the surf drops off quickly. Thursday the 30th is small and onshore, not worth it. Friday the 31st through to the weekend of August 1st and 2nd sees a bump in size, but the wind is cross or cross-onshore and the period drops to 7-8 seconds, making for lumpy, choppy conditions. The energy is moderate (up to 1210), but the quality just isn’t there for clean surfing. The setup looks more interesting for kite surfing than paddle surfing during that stretch.
The first week of August stays poor. From Monday the 3rd through to Sunday the 9th, it’s a long run of moderate cross-shore winds, messy seas, and onshore chop. The swell height stays around 5 ft to 8 ft, but the period is short and the wind never really cleans up. There are a few marginal windows, but nothing I’d get excited about. This is a gap of several days with no real recommendations.
Then, right at the end of the forecast, we get a surprise. On Tuesday the 11th of August, the wind turns light offshore in the morning, and we’ve got a 3 ft south-southwest groundswell with a very long 16-second period. The energy is moderate (554). That’s a long-period swell, which is best for a reef setup like Kalapaki – it’ll wrap in nicely with clean, lined-up waves. Tuesday afternoon goes glassy with a 4 ft swell and a 17-second period, energy jumping to 1087. That’s a distant, long-range standout – promising, but less certain this far out. Still, it’s a beautiful way to end the forecast.
So, the standout sessions are Wednesday afternoon the 29th with glassy conditions and 7 ft clean swell, and the far-off Tuesday the 11th with that long-period glassy groundswell. Everything else is a wait-and-see or a skip.
Rusty out.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue morning. Warm (max 27°C on Tue afternoon, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 27°C on Thu afternoon, min 24°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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) | E 14 | E 14 | E 13 | E 13 | E 12 | ENE 10 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 7 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | ||||||||||||||||||||
439 | 631 | 1247 | 1380 | 1136 | 1040 | 782 | 377 | 284 | 276 | 259 | 319 | 394 | 636 | 735 | 836 | 807 | 801 | 699 | 612 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross-off | cross-off | cross-off | glassy | cross | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross |
High Tide | 3:20PM0.66m | 2:33AM0.23m | 3:50PM0.67m | 3:10AM0.25m | 4:18PM0.66m | 3:49AM0.27m | 4:44PM0.65m | 4:33AM0.29m | 5:08PM0.61m | 5:22AM0.32m | 5:32PM0.57m | 6:19AM0.34m | 5:54PM0.51m | |||||||
Low Tide | 10:33PM0.16m | 8:11AM-0.02m | 10:50PM0.15m | 8:48AM-0.01m | 11:10PM0.13m | 9:25AM0.00m | 11:32PM0.11m | 10:03AM0.04m | 11:56PM0.09m | 10:44AM0.09m | 00:22AM0.07m | 11:33AM0.16m | 00:50AM0.05m | |||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | |
mm | — | — | 2 | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | 3 | 1 | — | — |
Temp °C | 26 | 25 | 26 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 26 | 26 | 27 | 25 | 26 | 26 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 24 | 27 | 28 | 26 | 30 | 32 | 29 | 29 | 29 | 27 | 26 | 26 | 24 | 23 | 24 | 24 | 23 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 14 | E 13 | E 13 | E 12 | ENE 10 | ENE 10 | ENE 9 | ENE 8 | S 13 | S 13 | S 12 | SW 15 | SSW 15 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 |
439 | 631 | 1247 | 1380 | 1136 | 1040 | 782 | 377 | 270 | 276 | 206 | 146 | 232 | 144 | 150 | 213 | 199 | 195 | 195 | 132 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | S 13 | SSW 13 | S 14 | S 14 | S 14 | S 13 | SW 18 | SSW 16 | SSW 16 | S 12 | E 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SE 8 |
284 | 213 | 189 | 130 | 137 | 206 | 264 | 297 | 284 | 152 | 175 | 169 | 104 | 150 | 123 | 123 | 133 | 77 | 68 | 15 | |
Swell 3 Height (m) Direction Period (s) | S 11 | SE 11 | SE 10 | S 16 | S 16 | NNE 9 | SSW 19 | SW 19 | SW 18 | N 9 | SE 6 | E 16 | E 15 | S 12 | S 11 | S 11 | S 11 | N 9 | SE 9 | SW 13 |
9 | 18 | 25 | 46 | 77 | 44 | 37 | 58 | 154 | 6 | 14 | 174 | 167 | 70 | 39 | 38 | 21 | 14 | 20 | 42 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 9 | NNE 9 | NNE 6 | — | — | — | — | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 7 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
281 | 322 | 231 | 264 | 88 | — | — | — | — | 246 | 259 | 319 | 394 | 636 | 735 | 836 | 807 | 801 | 699 | 612 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 31 | 14 | 17 | 14 | 14 | 0 | 0 | 10 | 37 | 16 | 47 | 47 | 47 | 31 | 320 | 299 | 132 | 33 | 39 | 17 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Kalapaki Beach Surf forecast
The above surf forecast table for Kalapaki Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kalapaki Beach can be found by selecting the local surf guide option on the grey menu. Our Kalapaki Beach 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 (Kalapaki Beach) 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 Kalapaki Beach 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 Kalapaki Beach, camping, hotels and condos and appartments in Kaua'i, consider staying in Nawiliwili which is 1 km (1 miles) away. Alternatively, find information about places to stay and car hire in Lihue - Kauai which is 3 km (2 miles) away










