JT Flemming Surf Break

Lat Long: 21.01° N 156.65° W

JT Flemming Surf Forecast and Surf Report

Issued: 1 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's JT Flemming sea temperature is
26.9°C
0.0° 

JT Flemming surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


JT Flemming surf forecast from 12 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 2AM (local time) - 3ft (0.9m), 9s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 2PM (local time) - 6ft (1.8m), 10s period, ENE swell with 676 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 2AM (local time) - 3ft (0.9m), 9s 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 Sunday (Sep 13) at 2AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.7m and 9s. 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 1.8m 10s and forecast to arrive on Thursday (Sep 17) at 2PM. 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 Wednesday (Sep 16) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 13th Sep)3ft (0.9m) 9s
Best Surf 2AM (Sun 13th Sep)3ft (0.9m) 9s
Most Powerful 2PM (Thu 17th Sep)6ft (1.8m) 10s

Table - best surf conditions forecast for JT Flemming over the next 16 days.


The Lowdown

Alright, let’s cut to the chase here.

The next couple of weeks are a bit of a mixed bag, to be honest. We’re looking at a long stretch of onshore and cross-shore winds that are going to mess up what little swell we have. For the first week, the surf at JT Flemming is pretty much a no-go. It’s small and chopped up, with winds coming out of the ENE at 9-19 mph and a lot of lumpy cross-chop. There’s just no quality to it. The period is short too, so it’s going to be weak and disorganized. There are a few days where the swell bumps up to around 5ft or so, but the wind is just too strong and cross-shore to make anything of it.

You’re looking at a solid 10 to 12 days of pretty poor conditions. We’ll see some moderate wave energy in there, but none of it is lining up with the wind. There’s nothing worth paddling out for, and honestly, the conditions are so crossed up that it might be more interesting for the kite crowd than us surfers.

Now, let's talk about the standout. It’s a long way out, but the forecast for the 25th and 26th of September looks like the real deal. This is where the magic could happen. On the 25th, late in the afternoon, the wind drops to a light 6 mph breeze out of the east, going cross-offshore. That’s clean. The swell is coming from the NNW, and while the height is only around 3ft, the period jumps to a very long 15 seconds. This is proper groundswell. The energy is strong too. It’s going to be glassy, clean, and have some real push to it. This is the kind of day that makes it all worth it.

The next day, Saturday the 26th, is also looking promising. The morning has the swell from the NNW at 5ft with a 14-second period. There’s a bit of cross-wind ripple, but the afternoon cleans up. The wind swings to a light cross-offshore, and the swell eases slightly to around 5ft with a 13-second period. Look for these to be the best sessions on offer. Because JT Flemming is a point break, it should handle this long-period groundswell really well, giving you those nice, long walls. It’s a rare break, so the line-up shouldn’t be too crowded, but you never know.

A word of caution though: with the primary swell coming from the NNW and the break’s optimum being NNW, this is a direct hit. But that 5ft swell on Saturday morning is approaching the size where beginners might find it a bit challenging. For the more experienced surfers, this is where it’s at.

Water temp is currently 80°, which is bang on average for this time of year, so you won’t need a full suit.

So, yeah, it’s a bit of a grind for the next ten days, but that light at the end of the tunnel looks like it could be something special. Mark the 25th and 26th in the calendar, but remember, it’s a long way out, so don’t book the time off work just yet.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Tue night. Warm (max 27°C on Tue afternoon, min 25°C on Mon afternoon). Mainly fresh winds.

Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
ENE
5
1.1
NE
10
0.5
ENE
10
1
NE
9
0.9
ENE
9
0.7
NE
9
1.1
NE
9
1.1
NE
8
1.1
NE
8
1.1
NE
8
1.1
NE
4
0.7
NE
6
1.3
ENE
5
1.2
ENE
7
1.5
ENE
6
1.7
ENE
6
1.6
ENE
8
1.7
ENE
8
1.8
ENE
10
1.7
ENE
10
Wave Graph
Metric surfscale
Energy kJ
74
216
55
152
127
79
190
181
153
169
45
33
77
138
143
201
296
383
663
550
Wind (km/h)
20
ENE
15
ENE
20
ENE
15
ENE
15
E
20
ENE
15
ENE
15
ENE
20
ENE
20
NE
20
ENE
25
ENE
30
ENE
25
ENE
30
ENE
30
ENE
25
ENE
25
ENE
30
ENE
25
E
Wind State
cross
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
High Tide
3:00PM0.75m
3:33AM0.69m
3:21PM0.68m
4:12AM0.72m
3:38PM0.62m
4:51AM0.72m
3:50PM0.56m
5:35AM0.70m
3:52PM0.51m
6:28AM0.66m
3:17PM0.47m
7:48AM0.63m
Low Tide
9:20PM0.14m
9:28AM0.23m
9:40PM0.12m
10:09AM0.29m
10:01PM0.12m
10:52AM0.36m
10:21PM0.12m
11:42AM0.42m
10:42PM0.14m
1:04PM0.46m
11:07PM0.17m
11:38PM0.20m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
clear
part cloud
rain showers
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:13
6:13
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:32
6:31
6:30
6:30
6:29
6:28
6:27
 mm
1
2
1
Temp °C
25
25
25
25
25
25
25
25
25
25
25
26
27
26
26
26
26
26
26
26
Feels °C
25
25
25
25
25
26
25
25
25
25
25
26
26
25
26
25
25
26
25
26
  • Map Icons:
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  • 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 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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