Jupiter Inlet South Jetty Surf Break

Lat Long: 26.94° N 80.07° W

Jupiter Inlet South Jetty Surf Forecast and Surf Report

Issued: 1 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Jupiter Inlet South Jetty sea temperature is
30.3°C
1.2° 

Jupiter Inlet South Jetty surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Jupiter Inlet South Jetty surf forecast from 4 Sep 2026:

  • Most powerful swell: Thursday 10 Sep, 5AM (local time) - 3ft (0.9m), 10s period, NE swell with 157 kJ wave energy.

Best Forecast Surf Conditions for Jupiter Inlet South Jetty this week:

The most powerful waves expected at Jupiter Inlet South Jetty in the next 16 days are 0.9m 10s and forecast to arrive on Thursday (Sep 10) at 5AM. 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 3s period and expected on Monday (Sep 07) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Thu 10th Sep)3ft (0.9m) 10s

Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's take a look at what we've got for the next couple of weeks at Jupiter Inlet South Jetty. I gotta be straight with you – this is a tough stretch. We're looking at a long, dry run of small, weak surf with a lot of onshore wind slop mixed in. There's nothing that jumps out as a proper standout, but let's break down the bones of it.

Right now, into this Friday, the 4th, we've got tiny wind swell. We're talking a poor 1 ft out of the ENE with a short 5-second period. The combined energy is a weak 17, and the cross-onshore wind is just killing any chance of a decent wave. Water temp is sitting at a toasty 87°, which is a touch warmer than normal for this time of year – feels like bath water in the lineup, that's for sure. Saturday and Sunday are more of the same; Saturday is mostly flat with crossing winds, and Sunday morning goes glassy but with a pathetic 0.7 ft of knee-high slop. There's days on end here where you’d be better off doing something else. Monday the 7th stays tiny, and the only silver lining is that the wind goes glassy again, but the swell is so small it's just not worth paddling out for.

We finally see a little pulse of energy kicking in around Wednesday the 9th. The swell height bumps up to 3 ft from the NE, and the period stretches to 9 seconds. Combined energy jumps to a moderate 148, which is the strongest we've seen, but the wind is right onshore from the East slapping it flat. We get a repeat on Thursday the 10th with energy around 116, but still that onshore E wind messes it up. That Northeast wind direction is what we're waiting for, but it just won't line up right.

The most promising window, and I say *promising* very loosely, comes on the morning of Sunday the 13th of September. The swell builds to 4 ft from the NNE, with a combined energy of 162. The best part? For that morning, the wind goes glassy. That's your one shot of the entire forecast to get a few chest-high waves with clean conditions. The swell period is short at 7 seconds though, so it'll be a bit of a lumpy, close-out mess at the jetty on the sets, not the kind of long, grinding groundswell we dream about. There will be some push, but it's made for the advanced crew; the average punter is going to struggle.

After that Sunday morning, it all goes to pot again. By Monday the 14th, the wind cranks up from the ENE at 12 mph, and it stays windy with that NE wind right through Tuesday and Wednesday of the second week. The swell drops back down and the wind stays fresh onshore. This is one of those times where the lack of quality, combined with the wind direction, makes the beach break setup look more interesting for kite surfing than paddle surfing. For the rest of the 16-day run into the 19th, you’re looking at onshore trash.

Bottom line: if you are set on getting wet, your only real window is the morning of Sunday, September 13th for that clean, 4 ft NE swell under glassy conditions. It's the only time the score is even a 1 out of 10 for surfable waves, but it'll be short period and ordinary. It's not the kind of swell you'd skip work for, but it's the best we've got.

Stay patient,
Rusty

Short Range Forecast

Heavy rain (total 26mm), heaviest during Sat afternoon. Warm (max 30°C on Fri afternoon, min 26°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Mon afternoon. Warm (max 31°C on Mon afternoon, min 26°C on Tue morning). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
AM
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
ENE
5
0.8
ESE
5
0.6
SE
4
0.3
ESE
4
0.4
SE
4
0.1
E
8
0.2
E
8
0.1
E
10
0.4
SSE
3
0.2
ENE
9
0.2
ENE
9
0.2
ENE
8
0.4
NE
11
0.4
NE
11
0.6
NE
10
0.9
NE
9
0.9
NE
9
0.9
NE
9
0.8
NE
10
0.8
NE
9
0.6
NE
9
Wave Graph
Metric surfscale
Energy kJ
9
30
13
3
5
1
4
2
3
7
7
7
29
30
63
144
147
144
113
103
65
Wind (km/h)
5
SE
15
SE
15
SSE
10
SSE
10
E
10
SW
5
WSW
10
ESE
10
SW
5
W
5
E
10
S
5
SE
15
E
10
SE
10
ESE
15
E
15
SE
10
ESE
15
E
10
SSE
Wind State
cross-on
cross-on
cross-on
cross
on
cross-off
glassy
cross-on
cross-off
glassy
glassy
cross
glassy
on
cross-on
on
on
cross-on
on
on
cross-on
High Tide
3:02PM0.85m
3:07AM0.82m
4:13PM0.85m
4:21AM0.83m
5:23PM0.87m
5:34AM0.87m
6:25PM0.92m
6:39AM0.92m
7:19PM0.96m
7:36AM0.97m
8:07PM1.00m
8:28AM1.01m
8:51PM1.01m
Low Tide
8:12AM0.12m
8:50PM0.35m
9:24AM0.13m
10:02PM0.34m
10:34AM0.11m
11:10PM0.29m
11:38AM0.09m
00:10AM0.22m
12:36PM0.05m
1:04AM0.14m
1:28PM0.04m
1:53AM0.07m
2:17PM0.04m
2:39AM0.02m
thunderstorm
part cloud
thunderstorm
thunderstorm
mod rain
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:00
7:01
7:01
7:01
7:01
7:01
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:36
7:35
7:34
7:32
7:31
7:30
 mm
1
7
1
9
5
3
1
7
4
1
1
5
3
3
Temp °C
29
30
29
29
29
27
28
30
29
29
31
30
28
29
29
29
29
29
29
29
29
Feels °C
33
33
31
32
31
29
31
34
31
33
35
32
31
31
31
32
31
32
34
32
32
  • Map Icons:
  • Break
  • 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 Jupiter Inlet South Jetty Surf forecast

The above surf forecast table for Jupiter Inlet South Jetty provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jupiter Inlet South Jetty can be found by selecting the local surf guide option on the grey menu. Our Jupiter Inlet South Jetty 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 (Jupiter Inlet South Jetty) 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 Jupiter Inlet South Jetty 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.

Jupiter Inlet South Jetty is 3 km (2 miles) from Jupiter. If you plan a vacation in South Florida, look for hotels and other accommodation in Jupiter. Jupiter has rooms for a wide range of budgets as well as car hire and transport links.

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