
Surf Forecasts:
Chinamans Hat/Mokolii surf forecast from 31 Jul 2026:
- Most powerful swell: Sunday 2 Aug, 2AM (local time) - 8ft (2.5m), 8s period, ENE swell with 908 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 2.5m 8s and forecast to arrive on Sunday (Aug 02) 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 0.3m 12s period and expected on Wednesday (Aug 05) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 2nd Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Chinamans Hat/Mokolii over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's on the menu for the next couple of weeks at Chinamans Hat/Mokolii.
First off, I gotta be straight with you – it's looking pretty grim. We're kicking off with a real rough patch. From Friday, July 31st right through the first week of August, the wind is just howling out of the east and east-northeast. We're seeing 19 mph breezes turning that 7 ft to 8 ft swell into a lumpy, choppy mess. The combined energy is up there (596 to 1107), but it's all "poor surf conditions" with that fresh cross-onshore wind ruining everything. It's just not worth paddling out for.
The swell does drop a bit by Monday, August 3rd, down to around 6 ft, and the wind eases to a gentle breeze, but it's still cross-on and fairly choppy. The energy is moderate (482). It's a step in the right direction, but still not good.
Now, here's a little flicker of hope. On Tuesday, August 4th, we get a longer period swell rolling in at 11 seconds. The swell size is around 5 ft – 5 ft, and the energy is moderate (513). The winds are still a gentle cross-on, so it's only "marginal" with questionable tide. But that longer period means the waves will have a bit more shape, even if the conditions aren't perfect. It's a point break here, so that longer period groundswell could actually wrap in a little better, but the east direction is far from its optimum north-east. This is the best we're going to see in the first week, but it's a long way from a standout.
The rest of the first week and into the second week is a real letdown. The swell drops off, and the period shortens back to 6-8 seconds. The wind stays onshore or cross-shore, and the energy falls to weak levels (under 200) by the end of the second week. We're looking at a solid 10-11 day stretch here with nothing worth getting excited about. The water temperature hasn't been flagged as unusual, so it's about average for this time of year.
Honestly, for the entire 16-day window, there's not a single session I'd call a standout. The only break we have to look at is Chinamans Hat/Mokolii, and it's just not delivering. The swell direction is from the east and east-northeast, but the optimum for this spot is north-east, so it's never really aligned right. Plus, it's an inconsistent spot, so when conditions are this poor, it's a real blank. For a surfer, this is a write-off. If you've got a kite, you might be able to have some fun with that strong wind and lumpy 8 ft swell, but for a paddle surfer, leave the board at home.
Rusty, signing off.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 26°C on Thu night, min 24°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Warm (max 27°C on Wed afternoon, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | E 7 | E 7 | E 7 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 6 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 8 |
Wave Graph | |||||||||||||||||||
277 | 416 | 439 | 847 | 902 | 807 | 908 | 740 | 688 | 560 | 394 | 339 | 178 | 593 | 505 | 433 | 322 | 218 | 216 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-on | cross-on |
High Tide | 2:24AM0.45m | 3:54PM0.82m | 3:13AM0.46m | 4:11PM0.78m | 4:09AM0.48m | 4:25PM0.73m | 5:15AM0.49m | 4:36PM0.67m | 6:43AM0.52m | 4:41PM0.61m | 8:54AM0.58m | 4:24PM0.56m | |||||||
Low Tide | 10:22PM0.24m | 8:55AM-0.01m | 10:48PM0.21m | 9:28AM0.06m | 11:13PM0.17m | 10:03AM0.15m | 11:41PM0.13m | 10:43AM0.26m | 00:13AM0.09m | 11:35AM0.37m | 00:54AM0.05m | 1:26PM0.47m | 1:50AM0.03m | ||||||
— | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
7:10 | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | |
mm | 2 | — | — | — | — | — | 1 | — | — | 1 | 1 | — | 1 | 1 | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 27 | 26 |
Feels °C | 26 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 23 | 25 | 25 | 25 | 27 | 28 | 27 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | E 16 | E 15 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 13 | E 12 | E 13 | E 12 | ENE 11 | ENE 11 | S 13 | NNE 9 | SSE 12 | NNE 8 |
81 | 157 | 231 | 205 | 205 | 196 | 194 | 138 | 134 | 87 | 78 | 84 | 141 | 593 | 505 | 14 | 8 | 29 | 6 | |
Swell 2 Height (m) Direction Period (s) | S 13 | N 8 | N 8 | N 8 | SSW 14 | SSW 14 | N 10 | N 9 | N 9 | N 8 | N 8 | SSW 12 | SSW 12 | SSE 14 | SSW 12 | N 9 | S 13 | NNE 8 | S 12 |
53 | 23 | 12 | 5 | 19 | 18 | 17 | 26 | 24 | 12 | 10 | 15 | 14 | 21 | 13 | 7 | 13 | 7 | 11 | |
Swell 3 Height (m) Direction Period (s) | N 9 | S 12 | S 12 | S 12 | S 12 | S 11 | SSW 14 | SSW 14 | SW 13 | S 13 | S 13 | N 8 | S 13 | SSW 12 | N 10 | SSW 11 | NE 12 | SSW 15 | S 11 |
14 | 27 | 26 | 11 | 10 | 9 | 20 | 19 | 7 | 13 | 13 | 4 | 3 | 14 | 8 | 12 | 6 | 22 | 9 | |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 6 | — | — | ENE 10 | ENE 9 | ENE 9 | ENE 8 |
277 | 416 | 439 | 847 | 902 | 807 | 908 | 740 | 688 | 560 | 394 | 339 | 178 | — | — | 433 | 322 | 218 | 216 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 25 | 38 | 138 | 38 | 167 | 139 | 139 | 40 | 167 | 35 | 25 | 35 | 25 | 25 | 24 | 24 | 27 | 25 | 29 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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.











