Kewalos Surf Break

Lat Long: 21.29° N 157.86° W

Kewalos Surf Forecast and Surf Report

Issued: 7 pm 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kewalos sea temperature is
26.8° C
0.4° 

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


Kewalos surf forecast from 31 Jul 2026:

  • Best quality surf: Tuesday 4 Aug, 5PM (local time) - 5ft (1.5m), 11s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Saturday 1 Aug, 5AM (local time) - 10ft (3.0m), 8s period, E swell with 1,220 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 5PM (local time) - 5ft (1.5m), 11s period with ENE swell.

Best Forecast Surf Conditions for Kewalos this week:

The surf forecast for Kewalos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 5PM. The primary swell is predicted to be 1.5m and 11s period with a secondary swell of 0.4m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kewalos in the next 16 days are 3.0m 8s and forecast to arrive on Saturday (Aug 01) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Aug 06) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Tue 4th Aug)5ft (1.5m) 11s
Best Surf 5PM (Tue 4th Aug)5ft (1.5m) 11s
Most Powerful 5AM (Sat 1st Aug)10ft (3.0m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s look at what’s coming up for the Kewalos lineup. The next 16 days are a bit of a mixed bag, but I’ll walk you through it.

Right off the bat, we’ve got a lot of wind and a lot of cross-off breeze. That ENE wind is going to be a constant companion, and it’s not going to be pretty. Water temperature is sitting about average for this time of year, so nothing unusual there.

The first few days from Friday the 31st of July through to the start of August are a write-off. The swell is there, size-wise, but that wind is howling at 25 mph to 28 mph, and the wave energy is high, but the quality is just rubbish. It’s big, but it’s blown out. You’d be fighting a strong breeze and the waves are just messy. For a reef break like Kewalos, this is not the one.

The real standout, and the only one I’d get excited about, is looking at Tuesday the 4th of August. The afternoon session is the best of the whole window. The swell drops to a cleaner 5 ft from the ENE, the period stretches to 11 seconds, and the wind drops to a gentle breeze. The wave energy is still moderate, and the commentary says “expect very good surf conditions.” That’s a gem. The crowd factor is “often,” so expect a few locals out, but it’ll be worth it.

After that, the following days from the 5th of August onward are a slow decline back into poor conditions. The wind picks up again, and the energy drops. I’d skip the 6th, 7th, and 8th—those are heavy winds and short period junk.

The second week is a different story. From the 10th of August, the swell direction swings to the SSW, and the period jumps to 16 seconds. That’s a proper groundswell. But the wind is still a problem, and the size is tiny—3 ft tops. The wave energy is moderate, but you’re looking at a lot of cross-off wind. The 14th of August, Friday afternoon, is a real tease. The wind goes glassy, calm, and the period is 19 seconds, but the swell is only 2 ft. It’s a beautiful forecast for a longboard, but don’t expect a wave you can really sink your teeth into.

So, the best call is Tuesday the 4th of August afternoon at Kewalos. That’s your window. The rest of the fortnight is mostly a waiting game, with a few tiny, pretty swells at the end that are promising but not worth booking a trip for.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 27°C on Fri morning, min 25°C on Fri night). Winds increasing (light winds from the ENE on Thu night, strong winds from the ENE by Fri night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun night, light winds from the NE by Tue night).

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
1
1
1
1
1
1
1
1
1
1
3
2
3
2
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)
1.5
E
7
1.8
ENE
8
2.1
ENE
8
3
E
8
3
E
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.3
ENE
8
2
ENE
8
1.7
ENE
8
1.5
ENE
8
1.7
ENE
12
1.6
ENE
11
1.5
ENE
11
1.4
ENE
10
1.3
ENE
9
1.2
ENE
9
0.4
SSW
14
Wave Graph
Metric surfscale
Energy kJ
245
375
469
1130
1220
871
889
844
722
541
394
321
811
593
505
373
280
218
81
Wind (km/h)
20
ENE
40
ENE
40
ENE
40
ENE
45
ENE
40
ENE
40
ENE
35
ENE
35
ENE
30
ENE
25
ENE
30
ENE
20
ENE
15
ENE
15
NE
15
ENE
25
ENE
25
ENE
25
ENE
Wind State
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
cross-off
cross-off
cross-off
cross-off
High Tide
5:11AM0.31m
5:26PM0.64m
5:57AM0.34m
5:55PM0.59m
6:49AM0.38m
6:24PM0.52m
7:47AM0.42m
6:55PM0.44m
8:56AM0.47m
7:27PM0.36m
10:11AM0.53m
8:07PM0.29m
Low Tide
11:58PM0.07m
10:29AM0.06m
00:22AM0.06m
11:14AM0.11m
00:48AM0.05m
12:06PM0.16m
1:15AM0.04m
1:14PM0.22m
1:46AM0.04m
2:52PM0.27m
2:23AM0.03m
5:19PM0.27m
3:10AM0.03m
thunderstorm
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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>
7:10
7:09
7:09
7:08
7:08
7:07
7:07
 mm
1
Temp °C
26
27
26
25
26
26
25
26
26
25
26
26
25
26
27
26
27
27
26
Feels °C
27
24
22
21
22
21
22
23
22
22
25
24
23
27
28
27
27
26
26
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  • 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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