Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 23 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 2AM (local time) - 3ft (0.9m), 4s period, ESE swell with 25 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 4s and forecast to arrive on Sunday (Aug 30) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Sunday (Aug 23) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 30th Aug) | 3ft (0.9m) 4s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and miles per hour.
Honestly, it’s a pretty flat and quiet run for the most part. We’ve got a long stretch of nothing much happening, so don’t get your hopes up too early. The first real chance of anything worth paddling out for doesn’t show up until Friday, September 4th. That’s a solid gap of nearly two weeks with only tiny, weak dribble and poor conditions. So if you’re keen, mark that date.
Let’s talk about the standout. That Friday morning, September 4th, is your best bet. Jupiter Inlet South Jetty will see a small NE swell, around 3ft, with a period of 8 seconds. It’s not a groundswell, just a short-period windswell, so expect a bit of chop on the surface. The wind is SW at 6 mph, a light cross-offshore breeze, which will keep things reasonably clean. The combined energy is moderate at 87. It’s not going to be pumping, but it’s the best we’ve seen in a while. The water temp is around average for this time of year, nothing unusual. Crowds are often around here, so expect company. It’s an advanced spot, so if you’re a beginner, the small size is fine, but the jetty can be tricky.
The next morning, Saturday September 5th, is similar. A bit of NE swell at 3ft, same 8-second period. Wind is NW at 6 mph, another light cross-offshore. Combined energy is 75, moderate. Clean conditions again, but again, nothing special. It’s a repeat of the day before, just slightly less energy. After that, it fades again.
So the takeaway: the first week and a half is a write-off. Tiny waves, poor conditions, onshore winds. The only real window is that Friday and Saturday morning at the start of September. It’s not big, it’s not epic, but if you’re jonesing for a paddle, that’s your window. Keep an eye on the forecasts, things can change.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Mon night. Warm (max 30°C on Sat night, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Thu afternoon. Warm (max 30°C on Wed afternoon, min 28°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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) | SSE 4 | ENE 9 | ENE 8 | SSE 4 | ENE 8 | SE 4 | SSE 3 | NE 8 | SE 4 | SE 3 | SSE 4 | SE 4 | SE 4 | ENE 15 | ENE 14 | ENE 14 | ENE 13 | ENE 12 | ENE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 8 | 7 | 7 | 13 | 6 | 7 | 5 | 2 | 3 | 3 | 12 | 9 | 12 | 21 | 21 | 18 | 17 | 15 | 14 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 5:14AM0.70m | 6:09PM0.74m | 6:11AM0.73m | 6:59PM0.78m | 7:02AM0.76m | 7:43PM0.83m | 7:49AM0.80m | 8:23PM0.86m | 8:33AM0.84m | 9:00PM0.89m | 9:15AM0.88m | 9:37PM0.91m | |||||||
Low Tide | 11:08PM0.37m | 11:31AM0.21m | 00:00AM0.35m | 12:19PM0.18m | 00:47AM0.31m | 1:02PM0.15m | 1:29AM0.26m | 1:43PM0.12m | 2:07AM0.20m | 2:21PM0.09m | 2:44AM0.15m | 3:00PM0.09m | 3:20AM0.10m | ||||||
 |  |  | |  | | |  | | | | | | | | | | |  | |
 | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | 7:51 | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:45 | — |
mm | 1 | — | 1 | 1 | 1 | — | 4 | — | — | 1 | — | 1 | 2 | — | 5 | 3 | — | — | 1 |
Temp °C | 30 | 29 | 30 | 29 | 28 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 30 | 28 | 29 | 30 | 29 |
Feels °C | 31 | 32 | 33 | 30 | 31 | 30 | 31 | 33 | 32 | 32 | 32 | 31 | 31 | 33 | 32 | 31 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | SE 4 | NE 8 | NE 7 | E 7 | E 7 | E 7 | ENE 8 | SSE 5 | ENE 14 | ENE 13 | SE 4 | ENE 12 |
| kJ | 7 | 7 | 7 | 6 | 6 | 6 | 1 | 3 | 2 | 2 | 1 | 1 | 1 | 7 | 4 | 18 | 17 | 4 | 14 |
Swell 2 Height (m) Direction Period (s) | E 8 | ESE 4 | E 8 | E 12 | E 9 | E 9 | NE 8 | NE 8 | E 8 | E 8 | E 10 | E 10 | E 16 | ENE 15 | ENE 14 | ENE 8 | ENE 9 | ENE 8 | ENE 8 |
| kJ | 1 | 1 | 1 | 3 | 2 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 5 | 21 | 21 | 6 | 8 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | E 13 | S 3 | E 12 | E 7 | E 12 | E 11 | E 11 | E 8 | E 11 | E 11 | E 10 | E 10 | E 9 | E 10 | ENE 8 | E 9 | E 6 | ENE 12 | E 9 |
| kJ | 3 | 1 | 3 | 1 | 3 | 3 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 2 | 1 | 15 | 2 |
Wind waves Height (m) Direction Period (s) | SSE 4 | — | SE 3 | SSE 4 | SSE 4 | SE 4 | SSE 3 | — | SE 4 | SE 3 | SSE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | SE 4 | SE 4 | — | ESE 4 |
| kJ | 8 | — | 3 | 13 | 6 | 7 | 5 | — | 3 | 3 | 12 | 9 | 12 | 15 | 7 | 6 | 5 | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 756 | 857 | 109 | 113 | 638 | 1052 | 327 | 327 | 1586 | 1236 | 1031 | 1585 | 273 | 61 | 1590 | 109 | 238 | 865 | 238 |
Best forecast wave conditions in South Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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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