Chinamans Hat/Mokolii Surf Break

Lat Long: 21.51° N 157.83° W

Chinamans Hat/Mokolii Surf Forecast and Surf Report

Issued: 7 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Chinamans Hat/Mokolii sea temperature is
26.9°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 2 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 5AM (local time) - 5ft (1.6m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 8PM (local time) - 8ft (2.5m), 13s period, ENE swell with 2,008 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 5AM (local time) - 5ft (1.6m), 8s 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 (Sep 09) at 5AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.6m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Chinamans Hat/Mokolii in the next 16 days are 2.5m 13s and forecast to arrive on Monday (Sep 07) 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 2.1m 7s period and expected on Tuesday (Sep 08) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 9th Sep)5ft (1.6m) 8s
Best Surf 5AM (Wed 9th Sep)5ft (1.6m) 8s
Most Powerful 8PM (Mon 7th Sep)8ft (2.5m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks. Straight up, I gotta be honest with you – this stretch is a lean one. We’re looking at a long, drawn-out run of poor conditions for the one spot that’s showing on the radar: Chinamans Hat/Mokolii. It’s a great-looking point break, and it’s exposed to the swell, but the wind gods are not playing ball for most of this forecast.

The water temperature is sitting at 80°F, which is just about bang-on average for this time of year, so you won’t need a thick suit.

We start off on Wednesday the 2nd of September with a 7ft swell out of the ENE, but that’s paired with a stiff 16 mph cross-onshore breeze from the east. The wave energy is moderate, but the cross-onshore wind is just chopping everything up, making for poor surf. This messy pattern sticks with us through the first week.

The ESE swell direction isn’t matching the optimum NE direction for the break either, which is a real bummer. This spot works best when the swell wraps in from the right direction.

There’s a bit of a shift on Sunday the 6th, with the swell picking up a touch more energy, but it’s still cross-onshore and the wave comment calls it “marginal” at best. Not something to get excited about.

The only real standout window I can see is around the 12th and 13th of September. On Saturday the 12th, we get a light breeze from the ESE at only 6 mph, which is a cross-shore wind. The swell holds around 6ft from the ENE with a 12-second period. The energy is moderate, and while it’s not glassy, the lighter wind means it’ll be less chop and more manageable. The following morning, Sunday the 13th, sees a similar setup with a 5ft ENE swell, 10-second period, and a light ESE cross-shore breeze. This is your best chance to get a few clean-ish ones. Keep in mind this break is *inconsistent*, so don’t expect a conveyor belt of waves, and crowds are possible here.

Because the combined wave energy for this spot rarely dips low and often hits three-digit figures, there’s enough push in the water, but the wind is the real killjoy. For most of the forecast, with that strong cross-onshore wind and a beach-like exposure, this setup would actually look more interesting for a kite surfer than a paddle surfer.

After the 14th, we fizzle out with very little energy and tiny 3ft waves, so the second week is a write-off.

So, to sum it up: the pick of a poor bunch is Saturday the 12th and Sunday the 13th of September. The swell will be in the chest-to-head-high range, direction is ENE, and the lighter winds make it the most surfable days in the whole window. It’s not pumping, but it’s the best you’re gonna get.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Heavy rain (total 24mm), heaviest during Mon morning. Warm (max 27°C on Mon night, min 24°C on Sun night). Mainly fresh winds.

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
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
1
1
0
3
1
0
1
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.2
ENE
8
2.1
ENE
8
2.2
ENE
8
2
ENE
7
2.1
ENE
7
2.1
ENE
7
1
E
14
1.1
E
14
1.2
E
13
1.3
E
14
2.2
ENE
13
2.1
ENE
13
2
ENE
12
1.8
E
12
2
ENE
12
1.7
E
13
1.8
ENE
13
1.8
ENE
12
2.2
E
7
1.7
ENE
11
1.1
NE
10
Wave Graph
Metric surfscale
Energy kJ
602
549
542
417
444
443
428
478
507
622
1674
1467
1183
942
1072
1018
1144
901
507
685
220
Wind (km/h)
25
E
25
ENE
30
ENE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
25
ENE
20
ENE
20
ENE
15
ENE
20
ENE
20
ENE
15
ESE
15
ENE
20
E
30
ESE
40
SSE
30
SSE
15
SSE
Wind State
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
cross-on
cross-on
cross
cross-off
cross-off
cross-off
High Tide
3:21PM0.55m
8:29AM0.69m
10:21AM0.75m
11:23AM0.82m
12:06PM0.87m
10:48PM0.37m
12:41PM0.90m
11:50PM0.45m
1:11PM0.90m
00:39AM0.53m
Low Tide
12:13PM0.44m
11:54PM0.03m
1:01AM0.05m
2:39AM0.05m
4:10AM0.02m
7:51PM0.29m
5:18AM-0.01m
7:46PM0.26m
6:11AM-0.02m
7:58PM0.23m
rain showers
clear
rain showers
rain showers
rain showers
clear
part cloud
part cloud
clear
clear
rain showers
rain showers
part cloud
clear
thunderstorm
light rain
mod rain
rain showers
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:15
6:15
6:15
6:15
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:44
6:43
6:42
6:40
 mm
2
1
2
2
2
2
4
5
6
5
4
3
1
Temp °C
26
26
25
25
26
25
25
25
25
25
26
25
26
26
25
24
24
27
27
28
27
Feels °C
26
26
24
24
24
22
22
22
23
24
26
25
26
27
26
26
25
26
24
27
28
  • 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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