Chinamans Hat/Mokolii Surf Break

Lat Long: 21.51° N 157.83° W

Chinamans Hat/Mokolii Surf Forecast and Surf Report

Issued: 7 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Chinamans Hat/Mokolii sea temperature is
26.0° C
0.1° 

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 16 Jul 2026:

  • Most powerful swell: Sunday 19 Jul, 2AM (local time) - 6ft (1.8m), 8s period, ENE swell with 365 kJ wave energy.

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

The most powerful waves expected at Chinamans Hat/Mokolii in the next 16 days are 1.8m 8s and forecast to arrive on Sunday (Jul 19) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 15s period and expected on Tuesday (Jul 21) at 2AM.

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

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


The Lowdown

Right. Rusty here. Let’s have a look at this one.

Straight up, I’ll be honest with you, mate – for the next couple of weeks, Chinamans Hat/Mokolii (Oahu) is a tough watch. It’s an inconsistent point break that needs a clean NE swell and the right wind to really work, and we just aren’t getting that. The whole 16-day window is a struggle, and there’s a long stretch of nothing good.

The first week is a total write-off. From Thursday the 16th right through to Sunday the 27th of July, it’s all poor surf conditions. The wind is a constant cross or cross-onshore from the E or ENE, keeping things choppy and messy. The swell is small, mostly 3 ft to 5 ft, and the period is often short and weak, around 6 to 8 seconds. The combined energy is all over the place, but it’s mostly weak to moderate (134 to 792), which means the waves are just lacking punch. It’s not worth paddling out for.

The best chance we see is right at the very end. On the 28th of July, Tuesday morning, the conditions start to turn. The swell is still coming from the ENE, but it’s pushing 4 ft to 5 ft with a longer period of 13 seconds. The wind drops to a gentle breeze, and the cross-on chop is fairly light. It’s still only a marginal forecast, but it’s the best of a bad lot. The score is a 1 out of 10, so keep your expectations low.

Then, on Wednesday the 29th of July, we get a real glimpse of hope. The swell picks up to 6 ft from the ENE, with a period of 10 to 11 seconds. The combined energy is strong (860 to 748). The wind is a light breeze, cross-shore, which would leave the surface pretty clean. This is the standout window. For a point break like Chinamans, that longer period and a bit of size could actually set up some nice lines. It’s still only a 2 out of 10, but for this spot in this period, it’s the best we’ve got.

After that, it drops right back off. From the 30th of July onward, it’s back to small, weak, and choppy. The blank run is real.

So, look – if you’re desperate, the Wednesday the 29th of July morning is your call. That’s the only time the swell has a bit of size and the wind is light enough to make it rideable. But don’t expect a classic session. The water temperature is about average for the time of year, nothing special.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed night. Warm (max 26°C on Thu morning, min 24°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Sun night. Warm (max 26°C on Mon afternoon, min 23°C on Sat night). Wind will be generally light.

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
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
0
0
0
0
0
0
0
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)
1.2
NE
7
1.2
ENE
7
1.1
E
6
1.4
ENE
6
1.3
ENE
7
1.2
NE
7
1.4
ENE
6
1.3
E
6
1.4
ENE
7
1.8
ENE
8
1.5
ENE
8
1.4
ENE
8
1.2
E
8
1
E
8
1.2
ENE
7
0.6
E
16
0.8
E
15
0.8
E
14
0.8
E
14
Wave Graph
Metric surfscale
Energy kJ
156
134
85
165
158
131
122
135
175
365
273
250
181
114
146
176
267
253
239
Wind (km/h)
15
E
15
E
20
E
20
E
20
E
15
ENE
15
ENE
20
E
20
ENE
25
E
20
ENE
20
ENE
15
ENE
15
ENE
15
ENE
15
ENE
20
ENE
20
ENE
20
ENE
Wind State
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
2:46AM0.41m
4:33PM0.89m
3:50AM0.41m
5:01PM0.81m
5:03AM0.42m
5:22PM0.73m
6:34AM0.43m
5:35PM0.65m
8:40AM0.48m
5:31PM0.58m
10:46AM0.57m
4:26PM0.53m
Low Tide
11:01PM0.25m
9:25AM-0.08m
11:35PM0.22m
10:07AM0.02m
00:09AM0.18m
10:48AM0.15m
00:42AM0.15m
11:31AM0.27m
1:16AM0.11m
12:28PM0.39m
1:54AM0.09m
3:10PM0.47m
2:40AM0.07m
rain showers
part cloud
clear
part cloud
clear
clear
clear
rain showers
clear
part cloud
clear
clear
rain showers
clear
clear
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
 mm
2
1
1
3
2
2
3
Temp °C
25
26
26
25
26
26
25
26
26
25
25
25
24
25
26
24
25
25
24
Feels °C
27
27
27
26
27
27
26
26
26
25
24
24
24
25
26
24
25
25
24
  • 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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