Surf Forecasts:
Kahului Harbor surf forecast from 5 Jul 2026:
- Most powerful swell: Tuesday 7 Jul, 5PM (local time) - 6ft (1.9m), 8s period, ENE swell with 419 kJ wave energy.
Best Forecast Surf Conditions for Kahului Harbor this week:
The most powerful waves expected at Kahului Harbor in the next 16 days are 1.9m 8s and forecast to arrive on Tuesday (Jul 07) at 5PM. 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 16s period and expected on Monday (Jul 06) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 7th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Kahului Harbor over the next 16 days.
Updates in hr min s Forecast update imminent
G’day, Rusty here. Let’s break down what we’ve got for the next sixteen days.
Honestly, mates, it’s a flat-out dud. The only break in the whole window is Kahului Harbor (Maui), a consistent advanced reef, but it’s dead quiet for surf. From Sunday July 5th all the way through Monday July 20th, every single session comes back as poor, with scores of zero except for a slight flicker on Thursday July 16th morning when it’s called "marginal"—still a score of just 1 out of 10. That’s over two weeks of nothing worth paddling for.
The swell is a weak, short-period ENE windswell running about 4 ft to 6 ft, with a period of only 7 to 8 seconds—gutless and disorganised. Combined swell energy numbers sit as low as 181 (weak) up to 422 (moderate on the scale), but it’s all wasted. Winds are mostly a moderate to fresh cross or cross-onshore breeze (9 to 19 mph from the ENE to NE), keeping the surface choppy and lumpy. No glassy windows, no clean waves. Water temp is about average for this time of year, so that’s not saving anything.
This kind of blank stretch is pretty normal around here when there’s no real groundswell and the trades just keep blowing. It can turn around, but as it stands, there’s not a single standout. Even that "marginal" morning on July 16th is a hard pass. Best to save your energy.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 27°C on Fri morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Sat 11 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | NE 7 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 260 | 271 | 297 | 217 | 329 | 416 | 337 | 356 | 419 | 353 | 263 | 286 | 159 | 272 | 256 | 256 | 277 | 310 | 362 | 319 | 344 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on |
High Tide | 5:28AM0.37m | 6:00PM0.66m | 6:53AM0.38m | 6:21PM0.61m | 8:47AM0.43m | 6:42PM0.55m | 10:41AM0.53m | 7:00PM0.48m | 11:52AM0.64m | 12:42PM0.75m | 9:34PM0.37m | 1:26PM0.84m | |||||||||
Low Tide | 00:39AM0.20m | 10:48AM0.16m | 1:13AM0.16m | 11:32AM0.26m | 1:53AM0.12m | 12:43PM0.37m | 2:40AM0.06m | 3:32PM0.46m | 3:32AM0.01m | 4:29AM-0.05m | 8:19PM0.37m | 5:24AM-0.11m | |||||||||
 |  | | | | | | | |  | | | | | |  |  |  | | | | |
 | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — |
 | 7:10 | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 2 | 1 | 2 | — |
Temp °C | 25 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 26 | 25 | 26 |
Feels °C | 25 | 25 | 25 | 22 | 24 | 24 | 22 | 24 | 25 | 23 | 25 | 25 | 24 | 26 | 25 | 25 | 28 | 28 | 27 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | NW 11 | NW 11 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 14 | SW 14 | NNE 6 | W 15 | W 14 | W 13 | W 13 | W 15 | W 13 | W 14 | WSW 18 |
| kJ | 48 | 31 | 19 | 18 | 25 | 24 | 9 | 9 | 9 | 10 | 8 | 8 | 48 | 4 | 4 | 14 | 13 | 17 | 30 | 33 | 61 |
Swell 2 Height (m) Direction Period (s) | WSW 19 | WSW 18 | E 11 | SW 16 | NW 10 | NW 10 | SE 10 | NW 9 | NW 9 | S 14 | — | — | SW 14 | S 13 | S 13 | SW 14 | W 21 | W 12 | WSW 19 | WSW 19 | W 14 |
| kJ | 35 | 31 | 9 | 41 | 4 | 4 | 4 | 3 | 3 | 4 | — | — | 7 | 3 | 3 | 8 | 9 | 12 | 37 | 34 | 35 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 18 | SE 10 | SE 10 | SE 10 | NW 10 | NW 9 | — | — | — | — | W 16 | — | W 18 | — | W 18 | SW 21 | — | — | — |
| kJ | 8 | 8 | 12 | 4 | 4 | 4 | 4 | 3 | — | — | — | — | 5 | — | 6 | — | 6 | 17 | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | NE 7 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
| kJ | 260 | 271 | 297 | 217 | 329 | 416 | 337 | 356 | 419 | 353 | 263 | 286 | 159 | 272 | 256 | 256 | 277 | 310 | 362 | 319 | 344 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 12 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 12 | 12 | 12 | 12 | 12 | 18 | 18 | 12 | 18 | 18 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Kahului Harbor Surf forecast
The above surf forecast table for Kahului Harbor provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kahului Harbor can be found by selecting the local surf guide option on the grey menu. Our Kahului Harbor 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 (Kahului Harbor) 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 Kahului Harbor 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.
Kahului Harbor is 3 km (2 miles) from Wailuku. If you plan a vacation in Maui, look for hotels and other accommodation in Wailuku. Wailuku has rooms for a wide range of budgets as well as car hire and transport links.
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