Surf Forecasts:
Kalapaki Beach surf forecast from 9 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 11PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 613 kJ wave energy.
Best Forecast Surf Conditions for Kalapaki Beach this week:
The most powerful waves expected at Kalapaki Beach in the next 16 days are 2.3m 8s and forecast to arrive on Sunday (Jul 12) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 15s period and expected on Wednesday (Jul 15) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Sun 12th Jul) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Kalapaki Beach over the next 16 days.
G'day, Rusty here.
Alright, let's be straight with you. The next couple of weeks look pretty average for Kalapaki Beach. We've got a long stretch of poor conditions, but there's a flicker of something interesting right at the very end of the forecast period.
Right off the bat, the water temp is sitting at 79°, which is about average for this time of year, so no surprises there.
The first week-plus is a write-off. From Thursday the 9th of July right through to Monday the 20th of July, it's a relentless grind of cross and cross-onshore winds, mostly from the ENE at 12-19 mph. The swell is there, but it's short-period, messy stuff, with energy levels bouncing around in the moderate range (400-907). The wave comments are all "poor surf conditions" with only a couple of "marginal" tags. Honestly, it's not worth paddling out for. The setup looks more interesting for kite surfing than paddle surfing with that constant cross-chop.
Then, things get a little interesting on the 21st of July. We see a total shift. The swell direction swings to the E, and the period jumps up to a very long 16-17 seconds. The combined energy skyrockets to strong levels (1192 and 1241). The wind is still cross from the ENE, but at a lighter 12 mph. The wave comment is still "marginal", but this is the best it gets. With that long-period groundswell, Kalapaki is a reef setup, so it might handle it better than a beach break. The swell size is small, around 3 ft, but with that energy, it could produce some clean, lined-up waves. This is the standout window, but it's a long way out, so treat it as promising but not a lock. The 22nd of July sees the energy drop back to moderate (675-736) as the period eases to 14-15 seconds, still a decent option on the back of the 21st.
After that, it fades away again from the 23rd of July, with the energy dropping back to weak (260-400) and the wind turning cross-onshore once more.
So, the only real call here is the 21st and 22nd of July. Head out then for the best chance of a decent wave. Before that, save your energy.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu morning. Warm (max 25°C on Thu morning, min 24°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Sun morning. Warm (max 26°C on Tue afternoon, min 23°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 536 | 509 | 415 | 328 | 330 | 303 | 432 | 379 | 359 | 397 | 536 | 596 | 421 | 345 | 305 | 305 | 294 | 294 | 310 | 271 | 314 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on |
High Tide | 12:45PM0.59m | 9:34PM0.22m | 1:33PM0.67m | 11:46PM0.18m | 2:19PM0.73m | 1:06AM0.18m | 3:04PM0.77m | 2:08AM0.19m | 3:47PM0.78m | 3:04AM0.21m | 4:29PM0.77m | 3:58AM0.23m | 5:08PM0.73m | 4:55AM0.26m | |||||||
Low Tide | 9:16PM0.22m | 5:17AM-0.06m | 9:34PM0.17m | 6:09AM-0.08m | 10:03PM0.14m | 7:03AM-0.10m | 10:34PM0.12m | 7:55AM-0.11m | 11:06PM0.11m | 8:46AM-0.10m | 11:38PM0.10m | 9:34AM-0.07m | 00:10AM0.09m | ||||||||
 | |  |  | | | |  | | | | | |  | | | |  | | | | |
 | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — |
mm | 4 | 1 | 1 | — | — | 1 | 1 | — | 1 | 3 | 3 | 4 | — | — | 3 | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 26 | 24 | 25 | 26 | 25 |
Feels °C | 24 | 24 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 23 | 24 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 12 | S 11 | SW 19 | SSW 18 | SW 18 | SW 17 | SSW 16 | SSW 16 | SW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 14 | W 15 | W 15 | W 15 | W 15 |
| kJ | 151 | 108 | 106 | 98 | 66 | 184 | 214 | 316 | 309 | 326 | 322 | 353 | 279 | 268 | 206 | 189 | 186 | 298 | 287 | 279 | 275 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | W 13 | W 13 | W 13 | S 11 | S 12 | W 13 | S 13 | SSE 12 | SSE 12 | SSE 12 | W 19 | SSE 11 | W 17 | W 16 | W 16 | SSW 13 | SW 13 | SSW 12 | SSW 16 |
| kJ | 11 | 16 | 30 | 28 | 55 | 60 | 44 | 54 | 51 | 52 | 49 | 48 | 112 | 85 | 142 | 257 | 248 | 109 | 162 | 103 | 314 |
Swell 3 Height (m) Direction Period (s) | W 14 | W 14 | SSE 8 | W 15 | SE 8 | W 14 | W 14 | SE 9 | SE 9 | SE 8 | W 12 | SE 8 | SSE 12 | W 18 | SSE 11 | SSW 19 | SW 19 | SSW 17 | SSW 18 | SSW 18 | SSE 6 |
| kJ | 15 | 32 | 6 | 38 | 17 | 58 | 61 | 26 | 28 | 25 | 26 | 25 | 47 | 150 | 40 | 146 | 93 | 200 | 123 | 184 | 16 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 536 | 509 | 415 | 328 | 330 | 303 | 432 | 379 | 359 | 397 | 536 | 596 | 421 | 345 | 305 | 305 | 294 | 294 | 310 | 271 | 306 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 47 | 17 | 31 | 31 | 33 | 31 | 33 | 17 | 31 | 39 | 17 | 33 | 31 | 17 | 31 | 31 | 17 | 31 | 31 | 17 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kalapaki Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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
Nearest