Kalapaki Beach Surf Break

Lat Long: 21.96° N 159.35° W

Kalapaki Beach Surf Forecast and Surf Report

Issued: 1 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kalapaki Beach sea temperature is
27.3°C
0.4° 

Kalapaki Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kalapaki Beach surf forecast from 30 Aug 2026:

  • Most powerful swell: Wednesday 2 Sep, 8AM (local time) - 3.5ft (1.0m), 16s period, S swell with 548 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 1.0m 16s and forecast to arrive on Wednesday (Sep 02) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Wed 2nd Sep)3.5ft (1.0m) 16s

Table - best surf conditions forecast for Kalapaki Beach over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s talk about this stretch of waves.

Right off the bat, I gotta be straight with you: it’s a tough run for Kalapaki Beach. The whole 16-day window is looking pretty grim. For the first week and a half, the wind is howling out of the east-northeast at a solid 16 mph, blowing straight across or onshore, and it’s chopping everything up. The wave comment keeps saying "poor surf conditions" and the scores back that up – there’s just no quality on offer. You’re looking at a real dry spell.

The only tiny glimmer of hope, and I mean tiny, shows up on the morning of Wednesday, September 2nd. We get a long-period groundswell from the south, 16 seconds, pushing about 3ft. The combined energy still feels moderate (921), but the problem is the wind is still cross-shore at 16 mph from the ENE, so the surface is going to be lumpy and won’t do that long-period energy any favors. It’s still a “marginal” call.

The water temp is sitting at 81°F with an anomaly of just 0.7° – so about average for the time of year. Not that it’ll matter much, because you’ll be fighting that chop.

Then from the 6th of September into the second week, things actually get bigger. Swell climbs to 6-7ft, even 10ft on the afternoon of Sunday the 6th, with energy jumping into the strong range (1435). But it’s all short-period, 8-9 seconds, wind-blown slop from the ENE and NE. The wind stays fresh at 19-22 mph. That kind of setup at a beach with this cross-shore chop? It’s more interesting for kite surfing than paddling. Definitely not a go for beginners, and even for the experienced guys it’s a messy, blown-out session. The recommendations stay at zero or one out of ten the whole way.

By the time you hit the 10th, the swell drops right down, back to 2ft, but the period stretches out to 15-18 seconds from the SSW. That’s all that nice long-period groundswell, but there’s no size and the wind is still playing up, so it’s not making anything happen.

Bottom line: it’s a 16-day stretch that’s basically a write-off. There are no standout days, no clean glassy windows, and the breaks are too inconsistent or blown out to call anything a proper score. It’s one of those periods where you just have to sit tight and hope the next forecast changes.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Sat night. Warm (max 27°C on Sat afternoon, min 24°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 12mm), heaviest on Wed night. Warm (max 27°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light.

Sat
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
1
0
1
1
0
0
1
1
0
1
1
0
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
S
13
2
ENE
7
1.9
ENE
7
1.8
ENE
7
1.7
ENE
7
2
ENE
7
1.8
ENE
8
2
ENE
8
1.9
ENE
8
1.7
ENE
8
2
ENE
8
0.9
S
16
0.9
S
16
0.9
S
15
1.9
ENE
7
1.7
ENE
8
1.5
ENE
7
1.6
ENE
8
1.6
ENE
7
2.1
ENE
7
Wave Graph
Metric surfscale
Energy kJ
215
404
376
344
281
405
353
451
421
344
487
427
406
363
387
322
231
288
249
432
Wind (km/h)
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
25
ENE
25
ENE
20
NE
25
ENE
25
NE
25
ENE
25
ENE
25
ENE
20
NE
20
NE
25
NE
25
NE
Wind State
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
4:25PM0.55m
5:07AM0.46m
4:47PM0.49m
5:58AM0.49m
5:08PM0.42m
6:57AM0.52m
5:24PM0.35m
8:09AM0.55m
5:17PM0.30m
9:35AM0.57m
10:57AM0.61m
Low Tide
10:52PM0.06m
10:51AM0.15m
11:17PM0.04m
11:48AM0.20m
11:45PM0.03m
1:02PM0.26m
00:18AM0.03m
3:05PM0.29m
1:01AM0.04m
2:01AM0.05m
3:24AM0.06m
clear
rain showers
rain showers
clear
rain showers
rain showers
rain showers
rain showers
clear
clear
rain showers
rain showers
clear
rain showers
rain showers
clear
clear
rain showers
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:20
6:20
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:54
6:54
6:53
6:52
6:52
6:51
 mm
3
1
3
2
1
1
2
2
6
1
1
2
Temp °C
27
25
26
27
26
26
26
25
26
26
25
26
27
25
26
27
25
26
26
25
Feels °C
26
25
25
26
25
25
25
24
25
25
24
26
27
25
25
26
24
25
25
24
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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

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