Chinamans Hat/Mokolii Surf Break

Lat Long: 21.51° N 157.83° W

Chinamans Hat/Mokolii Surf Forecast and Surf Report

Issued: 1 am 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Chinamans Hat/Mokolii sea temperature is
26.2° 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 22 Jul 2026:

  • Most powerful swell: Monday 27 Jul, 8PM (local time) - 5.5ft (1.7m), 14s period, E swell with 1,127 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 1.7m 14s and forecast to arrive on Monday (Jul 27) at 8PM. 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 13s period and expected on Wednesday (Jul 22) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Mon 27th Jul)5.5ft (1.7m) 14s

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


The Lowdown

Rusty here again, but this time in feet and knots for your old-school brain. The long-range forecast for Chinamans and the nearby area ain’t looking too hot. We’ve got a lengthy run of poor surf with almost no clean windows until we hit the second week.

The whole first week is plagued by cross-onshore wind—mostly east or east-northeast at 11 to 16 knots. Swell heights wobble between 3 ft and 7 ft, but the period is short (7-8 seconds), making for ugly chop and lumpy surface. On Wednesday July 22, for example, we start with rain showers and 13 knots from the east, 6 ft ENE swell, 7-second period—just terrible surf. It doesn’t get any better through July 25. Saturday July 26 brings a 15-second east swell only 3-4 ft, combined energy jumps to moderate, but still ruined by 13 knots cross-onshore. By Monday July 27, the combined energy is 1039-1049—strong—but it stays cross-onshore with 11 knots, so only marginal at best.

Finally, August 4 Tuesday shows something: the wind eases to just 8 knots from the ENE, and we’ve got 7 ft ENE swell at 10 seconds, combined energy 1303—strong. Still cross-onshore and just marginal. But August 5 Wednesday morning is the closest thing we have to a decent session all window. The wind goes light at 5 knots from the east, cross-shore, and the swell is 8 ft from the ENE, 13 seconds—groundswell. The combined energy is 1901—very strong. This is a powerful, long-period groundswell hitting an inconsistent point break. It’s right on the edge of expert territory, and with crowds possible, you might get a few clean ones if it all aligns. The afternoon sees wind drop to 3 knots cross-shore, swell at 8 ft ENE, 13 seconds, energy at 1765.

August 6 Thursday morning keeps the momentum: 8 ft ENE swell at 12 seconds, light cross-shore from the ESE, combined energy at 1798. By the afternoon, though, swell builds to 10 ft from the NE at 12 seconds, but the wind swings cross-onshore. The combined energy hits 2328—very strong. This is expert stuff only, and with wind turning, even those guys will find it rough. The water temp is around 79°, which is normal for the season.

So overall, the first ten days are basically a wash. You’re waiting until August 5-6 for any real size and quality, and even then it’s marginal and for skilled hands only. For most of us, there’s just not much to chase here. Rusty out.

Short Range Forecast

Light rain (total 4mm), mostly falling on Wed morning. Warm (max 25°C on Wed morning, min 24°C on Wed night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Sat night. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Wind will be generally light.

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
ENE
7
1.5
ENE
7
0.7
E
12
2.1
ENE
7
2
ENE
7
2
E
7
1.9
ENE
7
1.8
ENE
7
2.2
ENE
7
1.9
ENE
8
1.9
ENE
8
2.1
ENE
8
1
E
15
1.1
E
15
1.3
E
15
1.4
E
14
1.4
E
14
1.6
E
13
1.6
E
13
1.6
E
13
1.6
E
13
Wave Graph
Metric surfscale
Energy kJ
240
189
139
384
340
366
346
325
498
441
425
493
435
527
706
797
775
891
865
852
835
Wind (km/h)
25
E
20
ENE
20
E
30
E
25
ENE
25
E
30
ENE
30
ENE
25
E
25
ENE
25
ENE
25
E
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
20
ENE
15
ENE
15
NE
10
ENE
Wind State
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
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:48AM0.65m
12:25PM0.72m
12:56PM0.76m
1:24PM0.79m
10:18PM0.37m
1:52PM0.81m
11:30PM0.38m
2:19PM0.83m
00:16AM0.40m
2:46PM0.84m
00:58AM0.42m
Low Tide
3:34AM0.05m
4:30AM0.03m
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
rain showers
clear
part cloud
rain showers
clear
rain showers
rain showers
clear
clear
clear
clear
rain showers
rain showers
rain showers
rain showers
rain showers
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:00
6:01
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:14
7:14
7:13
7:13
7:13
7:12
 mm
1
1
1
1
2
1
1
1
1
Temp °C
25
25
25
25
25
24
25
25
24
25
25
24
25
25
24
25
25
24
25
26
25
Feels °C
25
24
25
23
23
22
23
23
23
24
24
23
24
24
23
24
24
23
25
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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