
Surf Forecasts:
Chinamans Hat/Mokolii surf forecast from 6 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 8PM (local time) - 5ft (1.6m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Saturday 5 Sep, 8PM (local time) - 7ft (2.2m), 14s period, ENE swell with 1,730 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 8PM (local time) - 5ft (1.6m), 10s 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 Tuesday (Sep 08) at 8PM. The primary swell is predicted to be 1.6m and 10s period. 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 2.2m 14s and forecast to arrive on Saturday (Sep 05) 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 1.1m 10s period and expected on Tuesday (Sep 08) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 8th Sep) | 5ft (1.6m) 10s |
| Best Surf | 8PM (Tue 8th Sep) | 5ft (1.6m) 10s |
| Most Powerful | 8PM (Sat 5th Sep) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Chinamans Hat/Mokolii over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s be straight up – the next couple of weeks are looking pretty grim for surf around here. We’ve got one spot to talk about, and it’s a real case of “if you’re desperate.” Chinamans Hat/Mokolii is the only game in town, and it’s a tough one.
The forecast kicks off on Saturday, 5th September, but don’t get your hopes up. The swell is a messy 7ft from the ENE, with a period of 14 seconds. That’s a long-period groundswell, which at a point break like this can be okay, but the wind is a cross-onshore howl at 15 mph, whipping it into a choppy mess. The energy is pumping at 1725, but it’s all for nothing with those conditions. It’s a “poor surf” call, and it stays that way for days.
Sunday the 6th through Monday the 7th is more of the same: cross-shore and cross-on winds, lumpy chop, and the swell drops a bit. The energy is still moderate to strong (1123-1100), but the quality is just not there. You’re looking at “marginal” at best, with some stormy risks thrown in.
Then on Tuesday, 8th September, a tiny glimmer. The wind swings to the S, giving us a clean cross-off breeze at 18 mph. The swell is 7ft from the ENE, but here’s the rub – the period drops to 11 seconds, and the energy is still high at 991. It’s clean, but it’s a strong, fresh wind so it’s not going to be pretty. Still, it’s the best we’ve got. The water temp is a balmy 80°F, which is bang on average for the time of year.
Wednesday, 9th September, the wind eases to a gentle 9 mph from the SE, and the swell drops to 4ft with a short 8-second period. The energy is weak at 375. It’s clean in the morning, and the guidance says “expect good surf conditions,” but honestly, it’s small and weak. It’s a marginal option at best.
After that, it’s a long, sad slide. From Thursday the 10th right through to the end of the window on Sunday, 20th September, it’s a non-stop run of poor surf. The wind is almost always cross-on or cross-shore, the swell is short-period junk (6-8 seconds), and the energy drops to a pitiful 171-332. The waves are small, choppy, and wind-affected. For a spot that’s already inconsistent, this is a real bummer.
If you’re a beginner, be careful. The swell hits 7ft early on and stays around 5ft-7ft for a bit, which is too much for learning. After that, it’s small and weak, but the chop makes it ugly. For the experienced heads, there’s nothing to get excited about here. The whole 16-day stretch is a write-off for quality waves. Honestly, this setup with the strong winds and messy surf looks more interesting for kite surfing than paddle surfing.
It’s a quiet period, but it won’t stay poor forever. Forecasts change.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 28°C on Tue morning, min 25°C on Sat afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 28°C on Tue afternoon, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 13 | ENE 13 | E 12 | E 12 | E 12 | E 13 | E 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 12 | ENE 12 | ENE 11 |
Wave Graph | ||||||||||||||||||||
1679 | 1568 | 1234 | 1155 | 584 | 747 | 812 | 1294 | 901 | 661 | 342 | 202 | 201 | 172 | 197 | 154 | 167 | 477 | 437 | 494 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 12:06PM0.87m | 10:48PM0.37m | 12:41PM0.90m | 11:50PM0.45m | 1:11PM0.90m | 00:39AM0.53m | 1:37PM0.87m | 1:24AM0.59m | 2:00PM0.83m | 2:09AM0.65m | 2:19PM0.77m | 2:53AM0.68m | ||||||||
Low Tide | 4:10AM0.02m | 7:51PM0.29m | 5:18AM-0.01m | 7:46PM0.26m | 6:11AM-0.02m | 7:58PM0.23m | 6:56AM-0.01m | 8:15PM0.18m | 7:38AM0.04m | 8:34PM0.14m | 8:19AM0.10m | 8:55PM0.10m | ||||||||
— | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | |
mm | 2 | 1 | — | — | 5 | 4 | 2 | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 27 | 26 | 26 | 27 | 26 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 26 | 27 | 28 | 27 | 25 | 27 | 27 | 29 | 29 | 30 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | SSW 12 | E 12 | E 13 | E 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 8 | E 13 | E 12 | E 12 | ENE 7 | E 13 | NW 9 | NNE 7 | SSW 15 |
177 | 101 | 72 | 89 | 584 | 747 | 812 | 1294 | 901 | 661 | 342 | 202 | 121 | 108 | 104 | 154 | 161 | 12 | 11 | 22 | |
Swell 2 Height (m) Direction Period (s) | NNE 10 | NNE 8 | SSW 16 | E 16 | SSW 14 | SSW 14 | SW 15 | SW 14 | SSW 15 | E 14 | E 14 | E 13 | NW 10 | NW 10 | NW 9 | E 12 | NW 8 | SSW 16 | SSW 15 | NW 8 |
19 | 13 | 50 | 78 | 136 | 229 | 262 | 261 | 75 | 148 | 134 | 168 | 51 | 33 | 21 | 104 | 11 | 26 | 22 | 3 | |
Swell 3 Height (m) Direction Period (s) | NNE 10 | SSE 10 | N 8 | SSW 19 | SSW 18 | SSW 17 | S 8 | S 15 | WSW 11 | SSW 15 | S 8 | NW 10 | SSW 14 | SSW 13 | SSW 13 | NW 9 | SSW 12 | S 12 | WNW 8 | SSW 12 |
32 | 11 | 5 | 35 | 66 | 92 | 33 | 118 | 43 | 72 | 33 | 54 | 36 | 34 | 33 | 12 | 14 | 11 | 7 | 13 | |
Wind waves Height (m) Direction Period (s) | ENE 13 | ENE 13 | E 12 | E 12 | ENE 7 | ENE 7 | ENE 7 | S 8 | S 10 | S 9 | — | — | ENE 8 | ENE 7 | ENE 7 | — | ENE 7 | ENE 12 | ENE 12 | ENE 11 |
1679 | 1568 | 1234 | 1155 | 276 | 276 | 220 | 84 | 230 | 126 | — | — | 201 | 172 | 197 | — | 167 | 477 | 437 | 494 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 35 | 25 | 35 | 35 | 31 | 138 | 28 | 27 | 27 | 27 | 0 | 25 | 25 | 28 | 28 | 25 | 25 | 28 | 28 | 24 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










