Kewalos Surf Break

Lat Long: 21.29° N 157.86° W

Kewalos Surf Forecast and Surf Report

Issued: 1 pm 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kewalos sea temperature is
26.2° C
0.1° 

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


Kewalos surf forecast from 14 Jul 2026:

  • Most powerful swell: Sunday 19 Jul, 2PM (local time) - 6ft (1.8m), 8s period, ENE swell with 398 kJ wave energy.

Best Forecast Surf Conditions for Kewalos this week:

The most powerful waves expected at Kewalos in the next 16 days are 1.8m 8s and forecast to arrive on Sunday (Jul 19) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Tuesday (Jul 14) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sun 19th Jul)6ft (1.8m) 8s

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


The Lowdown

G’day, Rusty here. Let’s break down what’s coming up for Kewalos over the next couple of weeks. Honestly, it’s gonna be a slow start, with mostly marginal conditions for the first week and a half, before we get a couple of windows that might get you excited. Water temp is 26°, right on average for this time of year—nothing odd there.

First up, Monday afternoon July 13th, we’ve got a tiny 3ft swell out of the SSW with a long 15 second period. Combined wave energy is moderate (542). Wind is a cross-off from the ENE at 19 mph, so it’s clean but small. This is an advanced reef break that’s inconsistent and often packed. Honestly, barely worth paddling out.

Tuesday morning the 14th stays clean with a cross-off breeze, but swell drops to 2ft from the SW at 14 seconds, energy down to 337. Afternoon is even worse. Wednesday the 15th brings some cross-chop in the morning and still tiny—2ft. Not your day.

Thursday the 16th and Friday the 17th? Tiny 2ft to 2ft swells with long periods, but no height. Wind stays a fresh cross-off, but surf is poor.

Then Saturday the 18th—a shift. Swell jumps to 6ft from the ENE, but with a short period of just 7 seconds. That’s windswell. Combined energy is moderate (466). Wind is a strong 25 mph cross-off, so it’ll be clean but lumpy. At 6ft, it’s pushing into intermediate-expert territory. Quality still isn’t there.

Sunday the 19th is similar—6ft ENE swell at 8 seconds, energy around 525. Marginal. The pattern holds through the week—smaller S swells mixing with short-period ENE pulses, all with cross-off trades. Nothing’s firing.

Now, Saturday July 25th shows a bit more life. We’ve got a 6ft ENE swell at just 7 seconds, but the combined energy jumps to 903—strong territory. Wind is a fresh cross-off from the NE at 19 mph, so it’s clean. At 6ft with that short period, it’s punchy and stacked—one for experienced surfers.

Sunday the 26th holds 6ft from the ENE at 8 seconds, energy 808. Still marginal, but clean.

But the real highlight is Tuesday July 28th. This one’s the session to circle. We get a solid 7ft groundswell from the ENE at a long 13 seconds, and combined wave energy hits a strong 1386. Wind is light from the ESE at just 6 mph, laying down a glassy cross-shore with only small ripples. That long-period groundswell will wrap perfectly around the reef at Kewalos, giving powerful, well-shaped lines. At 7ft, it’s strictly for experts on a reef, but the energy is legit. The crowd will be there because it’s such a quality setup.

Monday the 27th has some cross-on and onshore wind with thunderstorms, so that’s a write-off. But come Tuesday morning and afternoon the 28th, it’s your best window. Long-period ENE groundswell at a reef like this—you’ll get the right walls.

So, bottom line: the first week and a half is mostly small and average. The 25th to 26th has some size but short period. The real standout is Tuesday July 28th—big, clean, powerful groundswell with light winds. That’s your day.

Rusty.

Short Range Forecast

Light rain (total 7mm), mostly falling on Tue morning. Warm (max 26°C on Mon afternoon, min 24°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Fri night). Mainly fresh winds.

Mon
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
1
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
15
0.7
SW
14
0.7
SW
14
0.7
SW
14
0.6
SSW
13
1.3
ENE
7
0.7
SW
14
0.8
SSW
16
0.6
SSW
16
0.6
SSW
17
0.7
SW
14
0.5
SW
16
0.6
SSW
16
1.6
ENE
7
1.7
ENE
7
1.7
ENE
7
1.8
E
7
1.8
ENE
8
1.7
ENE
8
1.6
ENE
7
0.8
S
16
Wave Graph
Metric surfscale
Energy kJ
272
208
191
186
111
162
206
314
175
195
211
125
196
214
281
277
320
394
357
233
329
Wind (km/h)
30
ENE
20
ENE
20
NE
25
ENE
20
ENE
20
E
20
ENE
20
ENE
25
ENE
30
ENE
25
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
30
ENE
30
ENE
30
ENE
20
NE
25
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:56PM0.82m
3:49AM0.19m
4:39PM0.80m
4:45AM0.22m
5:20PM0.76m
5:41AM0.26m
5:59PM0.69m
6:41AM0.30m
6:36PM0.61m
7:44AM0.34m
7:11PM0.52m
8:53AM0.38m
7:45PM0.43m
10:04AM0.43m
Low Tide
11:23PM0.02m
9:06AM-0.08m
11:59PM0.01m
9:57AM-0.04m
00:34AM0.01m
10:49AM0.01m
1:08AM0.01m
11:44AM0.08m
1:42AM0.01m
12:46PM0.16m
2:15AM0.02m
2:03PM0.22m
2:48AM0.03m
clear
clear
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
5:58
5:58
5:58
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:15
7:15
7:15
 mm
1
1
1
2
2
Temp °C
26
24
25
25
25
25
26
25
26
26
25
26
26
25
25
26
25
25
26
24
25
Feels °C
23
23
25
23
25
25
26
24
25
25
24
24
24
24
23
23
23
22
24
22
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 Kewalos Surf forecast

The above surf forecast table for Kewalos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kewalos can be found by selecting the local surf guide option on the grey menu. Our Kewalos 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 (Kewalos) 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 Kewalos 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.

Kewalos is 5 km (3 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.

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