Kalapaki Beach Surf Break

Lat Long: 21.96° N 159.35° W

Kalapaki Beach Surf Forecast and Surf Report

Issued: 7 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kalapaki Beach sea temperature is
26.5° C
0.1° 

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 31 Jul 2026:

  • Most powerful swell: Sunday 2 Aug, 2AM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,118 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 3.0m 8s and forecast to arrive on Sunday (Aug 02) at 2AM. 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 2AM (Sun 2nd Aug)10ft (3.0m) 8s

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


The Lowdown

Right, grab a coffee, let’s have a look at what’s coming up for Kalapaki Beach. This is a reef setup, so it’s mellow, beginner-friendly, and pretty consistent, but unfortunately, the next couple of weeks look like a bit of a write-off. The water here is sitting at 80°, which is pretty much dead average for this time of year, so nothing weird going on there.

The first bit of surf we can talk about kicks off on Thursday morning, 30 July. We’ve got a small, clean-ish swell from the south at 3ft, with a period of 13 seconds – that’s a proper groundswell, but it’s small. The combined energy is moderate (438). The problem is the wind is a light cross-onshore from the east, already messing things up with a bit of wind ripple. It’s poor. That trend continues through Thursday afternoon and into Friday, 31 July, where the swell picks up to 5ft from the east-northeast, but the period drops to a short 7 seconds, and the wind gets stronger, into the moderate breeze range, making it choppy and cross-on. The energy climbs to 773, but it’s junk.

Saturday, 1 August, sees a bigger but messy 8ft swell from the east, with a period of 8 seconds. The cross-shore wind is fresh at 19 mph, making it lumpy with a cross-chop. The energy is strong (1171), but the surf quality is marginal at best. This continues into Sunday, 2 August, with similar conditions.

After that, there’s a long gap of poor to marginal surf. The swell drops back to 5ft by Tuesday, 4 August, and the period finally stretches to 12 seconds, but the wind is still cross-shore and the energy is moderate (811). It’s still not clean.

We don’t see a real standout until the tail end of the forecast. On Monday, 10 August, we get a 3ft south swell with a very long period of 16 seconds. The combined energy is moderate (680), and the wind is a gentle cross-shore from the northeast. This is the best-looking window. The long period means it’s going to be walled up and a bit straight for a beach break, but at a reef like Kalapaki, it should shape up nicely. Best of the run, with clean conditions. The following morning, Tuesday, 11 August, is also worth a paddle with a 3ft south swell, 15-second period, and light offshore winds from the east-southeast. The energy is moderate (634). This is a promising little window, but it’s over a week away, so don’t lock it in just yet.

After that, the surf fades off into tiny, onshore slop for the rest of the period. Honestly, the pick of the 16 days is the Monday, 10 August, and Tuesday, 11 August, mornings. The rest is a battle with the wind. If you’re a beginner, the surf never gets too big for you, but it’s mostly choppy, so you’ll be working for it.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sat night. Warm (max 27°C on Thu morning, min 24°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the ENE by Sat night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sun morning, min 24°C on Sun morning). Mainly fresh winds.

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
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
1
1
1
1
1
0
1
1
0
2
2
1
2
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
S
13
0.9
S
13
0.8
S
13
1.6
ENE
7
2.1
ENE
7
2.5
ENE
7
2.5
E
8
2.5
ENE
8
3
ENE
8
2.3
ENE
8
2.2
ENE
8
2.1
ENE
8
1.7
ENE
8
1.6
ENE
8
1.4
ENE
8
1.6
ENE
12
1.6
ENE
12
1.5
ENE
11
1.3
ENE
10
1.2
ENE
9
1.3
ENE
9
Wave Graph
Metric surfscale
Energy kJ
284
276
206
284
420
645
804
792
1118
755
715
606
404
339
275
706
648
487
318
237
243
Wind (km/h)
10
E
15
ENE
25
ENE
25
ENE
25
ENE
25
NE
30
ENE
30
ENE
30
ENE
30
ENE
25
NE
20
NE
20
ENE
25
NE
15
NE
15
ENE
15
ENE
15
ENE
20
ENE
15
ENE
15
ENE
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
High Tide
4:44PM0.65m
4:33AM0.29m
5:08PM0.61m
5:22AM0.32m
5:32PM0.57m
6:19AM0.34m
5:54PM0.51m
7:26AM0.38m
6:14PM0.44m
8:45AM0.44m
6:28PM0.37m
10:10AM0.50m
Low Tide
9:25AM0.00m
11:32PM0.11m
10:03AM0.04m
11:56PM0.09m
10:44AM0.09m
00:22AM0.07m
11:33AM0.16m
00:50AM0.05m
12:35PM0.23m
1:21AM0.04m
2:08PM0.29m
1:58AM0.03m
2:46AM0.02m
clear
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
clear
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:09
6:09
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:16
7:16
7:15
7:15
7:15
7:15
 mm
4
2
Temp °C
27
27
25
26
26
25
25
26
24
26
26
25
25
26
25
25
25
25
26
26
25
Feels °C
29
28
26
26
25
24
23
24
22
24
24
24
24
25
24
26
26
27
27
27
27
  • 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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