Kalapaki Beach Surf Break

Lat Long: 21.96° N 159.35° W

Kalapaki Beach Surf Forecast and Surf Report

Issued: 1 am 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kalapaki Beach sea temperature is
26.8°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 17 Sep 2026:

  • Most powerful swell: Wednesday 23 Sep, 5AM (local time) - 7ft (2.1m), 10s period, ENE swell with 768 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 2.1m 10s and forecast to arrive on Wednesday (Sep 23) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Thursday (Sep 17) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Wed 23rd Sep)7ft (2.1m) 10s

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


Short Range Forecast

Heavy rain (total 23mm), heaviest during Fri morning. Warm (max 27°C on Fri afternoon, min 25°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Tue morning. Warm (max 27°C on Sun morning, min 25°C on Sun night). Wind will be generally light.

Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
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
1
2
2
1
0
0
1
1
0
1
1
0
0
1
1
0
1
1
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)
0.7
SW
16
2.1
ENE
7
1
SSW
18
1
SSW
17
1
SSW
16
1
SSW
16
1.7
ENE
8
0.9
SSW
16
1.8
ENE
7
1
SSW
15
1
SSW
15
1
SSW
15
2.1
E
8
1.8
ENE
8
2
ENE
7
2.1
E
8
2.1
ENE
9
2
E
10
2.2
ENE
9
2.1
ENE
9
1.9
ENE
9
Wave Graph
Metric surfscale
Energy kJ
258
495
651
608
566
532
367
382
365
500
468
456
504
395
414
573
675
752
757
660
530
Wind (km/h)
30
NE
25
NE
20
NE
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
15
NE
25
ENE
25
ENE
20
NE
25
ENE
25
NE
25
NE
25
ENE
25
ENE
25
NE
25
ENE
25
ENE
25
ENE
Wind State
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
9:00AM0.53m
10:23AM0.54m
9:42PM0.19m
11:33AM0.55m
11:46PM0.22m
12:24PM0.57m
00:31AM0.26m
1:03PM0.59m
1:07AM0.30m
1:35PM0.59m
1:41AM0.35m
2:02PM0.59m
2:15AM0.40m
Low Tide
00:58AM0.13m
9:18PM0.19m
8:14PM0.19m
8:09PM0.18m
5:23AM0.13m
8:11PM0.17m
6:19AM0.11m
8:19PM0.15m
7:06AM0.10m
8:31PM0.12m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:24
6:24
6:24
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:36
6:35
6:34
6:32
6:31
 mm
2
2
6
6
3
4
2
2
3
2
2
2
Temp °C
26
26
25
26
27
26
26
27
26
27
27
26
26
26
25
26
26
25
26
26
25
Feels °C
27
26
25
26
28
27
27
27
27
27
27
26
25
25
24
26
26
25
26
25
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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