Kalapaki Beach Surf Break

Lat Long: 21.96° N 159.35° W

Kalapaki Beach Surf Forecast and Surf Report

Issued: 7 am 18 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 18 Jul 2026:

  • Most powerful swell: Saturday 25 Jul, 8AM (local time) - 3.5ft (1.0m), 20s period, S swell with 775 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 20s and forecast to arrive on Saturday (Jul 25) 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 (Sat 25th Jul)3.5ft (1.0m) 20s

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


The Lowdown

Alright, surfers, Rusty here. Let’s be straight with you: this 16-day window for Kalapaki Beach is a real mixed bag, and honestly, for most of it, it’s a tough sell. We’re looking at a long stretch of onshore and cross-shore winds that are going to keep things messy. The water temp is sitting right on average for the time of year at 80°, so nothing to worry about there.

The first real chance of anything goes way out to Wednesday, July 29th. Up until then, the wind is a constant problem. We’ve got moderate ENE winds through the 18th and 19th, creating choppy, cross-onshore conditions that are just poor. The swell is a short-period 6ft to 6ft ENE windswell, but with the wind state, it’s just not worth paddling out for. The energy is moderate (around 462-600), but it’s all junk.

We get a slight flicker of hope on the 20th to the 22nd, with a long-period S/SSW groundswell creeping in (15-24 seconds), but it’s tiny. We’re talking 2ft to 3ft. The energy is still moderate (443-1040), but it’s just not enough to light up a reef break like Kalapaki. The wind is still cross-shore, so it’s only marginal at best.

The real standout, and the only thing that gets me excited, is Thursday, July 30th. That’s one week from tomorrow. The forecast is showing a massive 21ft swell from the ENE, but here’s the deal: that’s simply too big for this spot. The energy is a massive 11884, which is very strong, but the text says it’s predicted to be too big for this break. However, if you are an expert, Wednesday the 29th afternoon is looking interesting. The wind goes cross-offshore with a 13ft ENE swell, and the energy is a solid 5870. The report even calls it “clean.” That’s your best shot. The long period (14 seconds) on a beach break can mean it’s a bit straight, but the cross-offshore wind is a huge plus, so it could be proper.

After that, the 31st and into August, the swell drops back down and the wind goes onshore again. The 30th afternoon is still a decent 15ft from the E with a light breeze, but it’s a big drop from the morning.

Look, this is a wait-for-it forecast. For most of the month, it’s a flat or choppy mess. The only real call is Wednesday the 29th afternoon or Thursday the 30th morning for the serious crew. For everyone else, it’s a long wait.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Sat morning, min 23°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Tue night. Warm (max 26°C on Tue afternoon, min 23°C on Wed night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
1
0
1
1
1
0
2
1
1
1
0
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
ENE
7
1.9
ENE
7
1.7
ENE
8
1.6
ENE
8
1.6
ENE
6
1.4
ENE
8
1.4
ENE
8
0.6
S
16
1.3
ENE
7
0.8
S
15
0.9
S
14
1
S
13
0.6
SSW
24
0.6
SSW
23
0.7
SSW
22
0.8
SSW
20
0.7
SSW
20
0.9
SSW
18
0.8
SSW
18
0.9
SSW
17
0.7
S
20
Wave Graph
Metric surfscale
Energy kJ
247
336
318
306
216
237
214
188
172
275
316
352
437
426
480
528
399
469
403
428
404
Wind (km/h)
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
20
NE
20
ENE
20
NE
20
NE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
NE
25
ENE
25
ENE
20
NE
25
ENE
30
NE
25
ENE
Wind State
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
6:48PM0.51m
8:26AM0.35m
7:13PM0.43m
9:50AM0.41m
7:25PM0.35m
11:06AM0.46m
12:06PM0.52m
12:55PM0.57m
1:36PM0.61m
00:21AM0.18m
Low Tide
12:04PM0.14m
1:46AM0.05m
1:11PM0.23m
2:18AM0.05m
2:53PM0.29m
2:52AM0.04m
3:30AM0.04m
4:16AM0.04m
5:07AM0.04m
10:06PM0.17m
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
rain showers
clear
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:05
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:22
7:22
7:22
7:22
7:21
7:21
7:21
 mm
3
1
1
2
1
2
2
2
Temp °C
26
26
24
25
26
24
25
26
24
25
26
25
25
26
25
25
25
24
25
26
24
Feels °C
26
25
23
24
25
23
24
25
23
25
26
25
24
25
24
24
24
23
23
25
22
  • 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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