Chinamans Hat/Mokolii Surf Break

Lat Long: 21.51° N 157.83° W

Chinamans Hat/Mokolii Surf Forecast and Surf Report

Issued: 7 pm 24 Jul 2026 (local time)

Forecast update in  hr  min

Today's Chinamans Hat/Mokolii sea temperature is
26.3° C
0.0° 

Chinamans Hat/Mokolii surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Chinamans Hat/Mokolii surf forecast from 25 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 8AM (local time) - 11ft (3.5m), 11s period, ENE swell with offshore winds.
  • Most powerful swell: Wednesday 29 Jul, 5AM (local time) - 11ft (3.5m), 12s period, ENE swell with 3,377 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 8AM (local time) - 11ft (3.5m), 11s period with ENE swell.

Best Forecast Surf Conditions for Chinamans Hat/Mokolii this week:

The surf forecast for Chinamans Hat/Mokolii over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 8AM. The primary swell is predicted to be 3.5m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Chinamans Hat/Mokolii in the next 16 days are 3.5m 12s and forecast to arrive on Wednesday (Jul 29) 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 0.4m 20s period and expected on Saturday (Jul 25) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 29th Jul)11ft (3.5m) 11s
Best Surf 8AM (Wed 29th Jul)11ft (3.5m) 11s
Most Powerful 5AM (Wed 29th Jul)11ft (3.5m) 12s

Table - best surf conditions forecast for Chinamans Hat/Mokolii over the next 16 days.


The Lowdown

Imperial Units

Alright, folks, Rusty here. Let's talk about the surf outlook for our little slice of paradise. The only break the data’s got on the radar is Chinamans Hat/Mokolii, so that’s where we’re looking.

The pattern over the next 16 days is a bit of a tough one. We’re looking at a long stretch of onshore winds and messy conditions, with only a couple of brief windows that might be worth a paddle. The early part of the run is a total write-off.

For the first four days, from Saturday the 25th through to Tuesday the 29th of July, it’s grim. Strong cross-onshore winds from the ENE are going to have the place chopped up and lumpy. The swell is there, mostly in the 6 ft to 7 ft range, but it’s short-period wind swell (around 7-8 seconds) and the combined energy is moderate (593). It’s just not going to be any fun. Even the early morning session on Tuesday the 28th has a risk of thunderstorms blowing through. Honestly, forget about those days.

Then we get a little flicker of hope on Wednesday the 29th of July. The wind swings around to a light SSE cross-offshore breeze, which finally cleans things up. The morning is the pick, with a solid 10 ft swell from the ENE, a period of 11 seconds, and a good whack of energy (1958). This is the standout, but it’s a big one. At 10 ft, this is expert territory only. The afternoon drops off to 7 ft with a shorter period, but still clean. The water temperature is about average for this time of year, so no surprises there.

But that clean window is short-lived. From Thursday the 30th of July right through to Sunday the 9th of August, we’re back into the onshore wind grinder. The ENE trades fire up again, sometimes fresh, sometimes moderate, making it a bumpy, cross-onshore mess. The swell is all over the place, from 3 ft to 8 ft, but it’s nearly all short-period, poor-quality wind swell. The combined energy values are moderate, mostly in the 300-900 range, but it’s not worth paddling out for. The light winds on the 4th and 5th of August offer a tiny bit of hope, but the swell is still too short and weak to get excited about. The 5th of August is a no-go, and the 6th of August is just tiny and short-period.

The absolute best bet, and it’s a long shot, is the early morning of Wednesday, the 29th of July. If you’re an experienced surfer, you might get a few powerful, clean bombs at Chinamans Hat. The swell direction is from the ENE, but the optimum is from the NE, so it’s not lining up perfectly. The other factor is that this spot is inconsistent, so you’ll be waiting for sets. And with an "always" crowd label, you won’t be alone. But for that one morning, the conditions are the best on offer.

For the rest of the run, the setup is a classic wind-blown, shoulder-high mess. The wind and swell are so consistently ugly that the break honestly looks more interesting for kite surfing than paddle surfing. It’s a dry spell, but the data shows a few of those marginal windows, so forecasts can change. Keep an eye on it.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 26°C on Sun afternoon, min 24°C on Fri night). Mainly fresh winds.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Tue morning. Warm (max 29°C on Wed afternoon, min 24°C on Mon night). Wind will be generally light.

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
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
0
0
0
1
0
0
2
3
2
1
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)
2.1
ENE
7
2.1
ENE
8
2
ENE
8
2.1
ENE
8
1.9
ENE
8
1
E
15
1.2
E
14
1.3
E
14
1.4
E
14
1.8
E
13
2
E
13
2.4
E
13
3.5
ENE
12
3
ENE
11
2.1
ENE
9
2.1
ENE
8
1.9
ENE
8
1.7
E
8
2
E
7
Wave Graph
Metric surfscale
Energy kJ
456
531
489
480
403
418
594
649
700
1124
1370
1982
3287
1958
799
588
461
337
416
Wind (km/h)
25
E
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
NE
20
NE
20
NE
25
NNE
15
N
20
SSE
20
SSE
20
ESE
20
E
25
ENE
25
E
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-off
cross-off
cross
cross
cross-on
cross
High Tide
1:24PM0.79m
10:18PM0.37m
1:52PM0.81m
11:30PM0.38m
2:19PM0.83m
00:16AM0.40m
2:46PM0.84m
00:58AM0.42m
3:11PM0.85m
1:39AM0.43m
3:34PM0.84m
2:24AM0.45m
Low Tide
5:20AM-0.00m
9:17PM0.32m
6:03AM-0.03m
9:01PM0.31m
6:42AM-0.06m
9:13PM0.30m
7:17AM-0.07m
9:33PM0.29m
7:50AM-0.08m
9:57PM0.27m
8:23AM-0.05m
10:22PM0.24m
clear
clear
part cloud
rain showers
clear
clear
part cloud
clear
part cloud
rain showers
thunderstorm
thunderstorm
light rain
cloud
clear
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:01
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:13
7:13
7:13
7:12
7:12
7:10
 mm
1
3
3
2
2
1
Temp °C
25
25
25
25
25
26
25
25
26
25
25
26
25
27
29
27
26
27
26
Feels °C
23
23
23
23
23
25
24
25
26
25
27
27
25
29
30
29
27
27
26
  • 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 Chinamans Hat/Mokolii Surf forecast

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

Chinamans Hat/Mokolii is 11 km (7 miles) from Kane'ohe. If you plan a vacation in Oahu, look for hotels and other accommodation in Kane'ohe. Kane'ohe has rooms for a wide range of budgets as well as car hire and transport links.

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