Kalapaki Beach Surf Break

Lat Long: 21.96° N 159.35° W

Kalapaki Beach Surf Forecast and Surf Report

Issued: 7 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kalapaki Beach sea temperature is
26.6° C
0.2° 

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 21 Jul 2026:

  • Most powerful swell: Tuesday 28 Jul, 2AM (local time) - 5ft (1.6m), 14s period, E swell with 1,030 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 1.6m 14s and forecast to arrive on Tuesday (Jul 28) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Monday (Jul 27) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Tue 28th Jul)5ft (1.6m) 14s

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


The Lowdown

Hey folks, Rusty here. Let’s talk Kalapaki Beach for the next 16 days. Plain and simple, it’s a rough stretch. The water’s at 80°, which is about normal for this time of year, so no surprises there.

Starting Tuesday the 21st, we’ve got a little S swell around 3 to 3 ft, with a 14-15 second period – that’s a nice long groundswell. The combined energy is moderate (601-627). Problem is, the wind’s cross from the ENE at 12-15 mph, so you’ve got a cross-chop. It’s marginal surf with questionable tide. Wednesday and Thursday the 22nd and 23rd bring a SSW swell with a really long period (23-24 seconds) and strong energy (1017-1108), but the wind stays cross or cross-on, so it’s still choppy and poor.

Friday the 24th, the swell jumps to nearly 7 ft from the ENE, but it’s a short 7-second windswell. The wind is cross-on and choppy, and that size is expert-only territory. The combined energy is strong (1063-1197), but the quality is poor. Saturday and Sunday the 25th and 26th, we get some SSE and E swells with long periods (16-18 seconds) and strong energy (1336-1376), but the wind is cross, so it’s lumpy. Still marginal at best.

From Monday the 27th to Friday the 31st, there’s a consistent E to ENE swell running 5 to 6 ft, with periods dropping from 15 seconds down to 9 seconds. Energy stays moderate to strong (581-1450). The wind is cross from the NE or ENE at 9-15 mph. It’s the same story – marginal surf with cross-chop. Wednesday the 29th might be your best bet with a 6 ft swell and 13-second period, but it’s still not clean.

Into August, Saturday the 1st and Sunday the 2nd, we see 8-8 ft from the ENE with short 7-8 second periods and cross to cross-on winds. That’s a lot of water moving with bad shape – honestly, better for kite surfing than a paddle session. Monday the 3rd through Wednesday the 5th, the swell drops to 5-7 ft, periods stay short (8-9 seconds), and the wind is cross-onshore. By Wednesday the 5th, it’s a tiny 2 ft SSW with a 16-second period, but it’s cross-on and choppy. A total dud.

So what’s the one to aim for? Not much to get stoked about, but Tuesday afternoon the 21st has a 3 ft S swell with a 14-second period and moderate energy of 627. The wind is cross at 12 mph, so it’s not glassy, but it’s the best of a bad lot. Keep your expectations low.

There’s a long gap of poor to marginal conditions from the 22nd right through to the 5th of August. That’s about two weeks of tough going. Kalapaki is usually pretty consistent, so this flat spell is a bummer, but things can change. Stay tuned.

Rusty, out.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed morning. Warm (max 25°C on Tue morning, min 23°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Fri morning. Warm (max 26°C on Sun afternoon, min 24°C on Fri morning). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
2
1
0
0
2
0
1
2
1
1
2
2
1
2
2
2
2
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
15
0.9
S
14
1
S
13
0.6
SSW
24
0.7
SSW
23
0.7
SSW
22
0.8
SSW
20
0.7
SSW
20
0.9
SSW
18
2.1
ENE
7
0.8
SSW
17
2
ENE
8
2.1
ENE
8
1
SSW
18
1
SSW
18
1
SSW
16
1
E
16
1.3
E
16
1.4
E
15
1.4
E
14
1.6
E
14
Wave Graph
Metric surfscale
Energy kJ
275
320
352
437
564
480
528
399
469
431
390
452
519
731
662
575
489
817
853
808
1030
Wind (km/h)
25
ENE
20
ENE
15
ENE
25
E
25
ENE
20
ENE
25
ENE
25
ENE
25
ENE
25
ENE
30
NE
25
ENE
25
NE
25
ENE
25
ENE
20
ENE
25
NE
25
ENE
20
ENE
20
NE
20
NE
Wind State
cross
cross
cross-on
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
11:06AM0.46m
12:06PM0.52m
12:55PM0.57m
1:36PM0.61m
00:21AM0.18m
2:14PM0.63m
1:16AM0.20m
2:48PM0.65m
1:57AM0.21m
3:20PM0.66m
2:33AM0.23m
Low Tide
3:30AM0.04m
4:16AM0.04m
5:07AM0.04m
10:06PM0.17m
6:00AM0.03m
10:10PM0.16m
6:48AM0.01m
10:20PM0.16m
7:31AM-0.01m
10:33PM0.16m
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
rain showers
clear
clear
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:05
6:05
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:22
7:21
7:21
7:21
7:20
7:20
7:19
 mm
1
2
4
5
3
1
1
1
1
2
2
1
Temp °C
25
25
24
25
25
24
25
25
24
25
25
24
24
25
24
25
26
24
25
25
24
Feels °C
24
24
24
26
24
23
24
23
23
24
24
23
24
25
23
24
25
23
24
25
23
  • Map Icons:
  • Break
  • 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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