Surf Forecasts:
JT Flemming surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 3.5ft (1.0m), 7s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 8PM (local time) - 6.5ft (2.0m), 7s period, ENE swell with 435 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 3.5ft (1.0m), 7s period with ENE swell.
Best Forecast Surf Conditions for JT Flemming this week:
The surf forecast for JT Flemming over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 5AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.2m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at JT Flemming in the next 16 days are 2.0m 7s and forecast to arrive on Monday (Aug 24) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Saturday (Aug 22) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 3.5ft (1.0m) 7s |
| Best Surf | 5AM (Thu 20th Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 8PM (Mon 24th Aug) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for JT Flemming over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s be real with you right off the bat – this is a tough stretch for JT Flemming. We’ve got a solid 16-day window ahead, but the surf report is painted with the same ugly brush for the whole run. The wind is locked in from the ENE, blowing cross-shore or cross-off at best, but it’s always got some push to it, making for messy, lumpy conditions. The swell is coming from the same direction as the wind, which is a classic recipe for close-outs and chop. There’s nothing here that’s worth dropping everything for.
The first few days, from Monday the 17th through to the end of the week, are a write-off. Swell is tiny, under 4 ft, and the period is short and weak. The combined energy is weak to moderate (192 down to 40), and the wind is a constant cross-shore breeze. It’s just poor surf conditions, day after day.
We roll into the weekend of the 23rd and 24th, and the swell actually starts to push up a bit, hitting 5 ft to 6 ft. But the wind really cranks up to a fresh breeze, 18-22 mph, making it lumpy and ugly. The energy is moderate (240-273), but with that onshore wind, it’s still a mess.
The second week, from the 25th of August onward, the swell gets bigger. By Wednesday the 26th, we’re looking at 6 ft, and by Friday the 28th, it’s pushing 8 ft with a combined energy of 970 – that’s a lot of juice. But the problem is the wind. Every single day, it’s a fresh breeze from the ENE, keeping the surface chopped up. Even the "cross-off" days on the 25th and 26th, which are a bit cleaner, are still blown out by that 18 mph wind. For a point break like JT Flemming, this swell direction is completely wrong, coming straight from the ENE, not the optimum NNW. It’s going to be a bumpy, difficult paddle and the waves will be shifty and closed out.
The size gets up there, but it’s not beginner-friendly. Anything over 5 ft is pushing it, and by the end of the month we’re over 7 ft, which is for the more experienced crew only. Even then, the quality just isn’t there. The setup looks more interesting for a kite surfer than a paddle surfer, honestly.
There are no standouts here. The whole 16-day window is a flat, windy bust. Sometimes you get a blank run like this, and forecasts can change, but right now, don’t bother waxing up for JT Flemming. Save your energy.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon night, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 24°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the ENE by Sat afternoon). | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 5 | ENE 8 | ENE 5 | WSW 18 | NE 6 | NE 4 | ENE 7 | NNE 6 | NNE 7 | NE 7 | NNE 7 | ENE 6 | ENE 7 | ENE 6 | WNW 10 | WNW 12 | ENE 6 | NW 11 | ENE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 72 | 128 | 68 | 31 | 49 | 47 | 131 | 26 | 31 | 65 | 29 | 139 | 83 | 127 | 20 | 60 | 175 | 60 | 172 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross |
High Tide | 7:23AM0.60m | 4:40PM0.53m | 9:04AM0.61m | 11:01AM0.64m | 12:06PM0.68m | 12:46PM0.73m | 11:07PM0.34m | 1:17PM0.77m | 00:14AM0.37m | ||||||||||
Low Tide | 11:55PM0.17m | 12:48PM0.48m | 00:24AM0.18m | 1:05AM0.20m | 2:20AM0.21m | 4:03AM0.21m | 9:02PM0.33m | 5:16AM0.17m | 8:40PM0.32m | ||||||||||
 |  |  | | | |  | | | | | | | | | | | | | |
 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 6:54 | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 27 | 26 | 25 | 25 | 25 |
Feels °C | 24 | 24 | 25 | 24 | 26 | 26 | 27 | 28 | 27 | 28 | 28 | 28 | 26 | 26 | 25 | 25 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | S 13 | S 13 | S 13 | E 8 | SW 16 | SW 16 | E 8 | NNE 7 | NE 7 | NNE 7 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 12 | NW 11 | NW 11 | NW 10 |
| kJ | 59 | 30 | 30 | 30 | 47 | 68 | 41 | 40 | 31 | 65 | 29 | 93 | 124 | 90 | 88 | 60 | 64 | 60 | 38 |
Swell 2 Height (m) Direction Period (s) | W 11 | WSW 17 | SW 18 | WNW 12 | SW 16 | S 12 | S 12 | SW 18 | E 7 | SW 16 | E 7 | W 10 | W 10 | WNW 10 | WNW 10 | SW 16 | SW 15 | SW 15 | SW 14 |
| kJ | 10 | 28 | 49 | 14 | 41 | 11 | 11 | 79 | 40 | 95 | 24 | 19 | 31 | 19 | 20 | 86 | 80 | 56 | 54 |
Swell 3 Height (m) Direction Period (s) | WSW 6 | W 11 | W 13 | WSW 18 | W 12 | W 12 | W 11 | S 11 | SW 17 | E 8 | SW 17 | S 11 | S 13 | WSW 10 | WNW 14 | WSW 9 | SW 9 | SW 9 | SW 9 |
| kJ | 4 | 9 | 14 | 31 | 11 | 11 | 9 | 10 | 77 | 10 | 100 | 9 | 13 | 10 | 20 | 8 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 8 | ENE 5 | ENE 5 | NE 6 | NE 4 | ENE 7 | NNE 6 | — | N 7 | — | ENE 6 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 |
| kJ | 72 | 128 | 68 | 48 | 49 | 47 | 131 | 26 | — | 8 | — | 139 | 83 | 127 | 255 | 146 | 175 | 215 | 172 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 5 | 9 | 1 | 2 | 12 | 1 | 1 | 7 | 7 | 12 | 12 | 12 | 12 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the JT Flemming Surf forecast
The above surf forecast table for JT Flemming provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at JT Flemming can be found by selecting the local surf guide option on the grey menu. Our JT Flemming 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 (JT Flemming) 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 JT Flemming 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.
JT Flemming is 21 km (13 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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