Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 11 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 2PM (local time) - 2.5ft (0.8m), 5s period, SE swell with 33 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 0.8m 5s and forecast to arrive on Saturday (Aug 15) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Friday (Aug 14) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 15th Aug) | 2.5ft (0.8m) 5s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a hard look at what’s going on for the next couple of weeks around Jupiter Inlet South Jetty.
To be straight with you, it’s a flat spell. There is nothing on the table worth paddling out for right now. The entire 16-day window is just one long stretch of tiny, weak surf. No standout days, no proper swell. You’re looking at a wave height that barely nudges above 3 ft at the absolute best, and even then it’s short-period, sloppy junk. The first time there’s even a hint of something is around Saturday morning 15 August, and even that is a sad 2 ft of 5-second windswell with a cross-onshore breeze. Not worth getting wet for.
For the whole run, wave energy stays low. Most of the time you’ll see combined energy numbers in the single digits or low teens (6 to 38) – weak stuff, no punch.
The water temperature is sitting at 86°, which is about average for this time of year, no real anomaly.
Because the jetty is a beach/jetty setup and it’s fairly exposed to swell, you’d think we’d catch something. But the swell direction is all over the place – mostly ENE, sometimes ESE or SE – and it’s never matching what this spot really wants from the NE. On top of that, winds are often cross-on or onshore, making a tiny wave even worse.
There are a couple of brief windows where the wind goes light offshore, like Wednesday morning 12 August and Monday morning 17 August, but with wave heights of just 0.3 ft to 0.7 ft, it’s flat as a pancake. Monday afternoon 17 August goes glassy – still no wave. A few morning slots like 18 August and 19 August have clean conditions, but again, the swell is non-existent. Late in the window, around 26 August Wednesday morning, there’s a brief bump of 3 ft, but it’s short-period (4 seconds) and comes with a cross-onshore breeze. Not surfable.
The long-period energy that shows up on 19 August Wednesday morning (12 seconds) is a tease – it’s only 0.7 ft. That kind of period would be better at a reef or point break anyway.
Honestly, this is a classic summer flat spell. If you’re a kite surfer, maybe you’ll find something to play with when the wind picks up and the chop builds, but for paddle surfing? Leave the board at home.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Thu afternoon. Warm (max 31°C on Wed afternoon, min 27°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sat morning. Warm (max 30°C on Fri morning, min 28°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
AM | PM | 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 7 | ENE 8 | SSE 5 | NE 9 | NE 8 | S 3 | NE 8 | NE 8 | SSE 4 | SE 4 | SE 4 | SE 4 | SE 5 | ESE 5 | SE 5 | SSE 5 | E 8 | SSE 6 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 7 | 6 | 3 | 3 | 3 | 3 | 3 | 7 | 4 | 7 | 7 | 21 | 17 | 31 | 8 | 6 | 10 | 7 | 7 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | off | cross-on | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross | off | glassy | cross-off |
High Tide | 8:29PM0.94m | 8:42AM0.92m | 9:16PM0.96m | 9:34AM0.95m | 10:01PM0.97m | 10:22AM0.95m | 10:44PM0.96m | 11:10AM0.94m | 11:26PM0.92m | 11:56AM0.91m | 00:07AM0.88m | 12:41PM0.87m | 00:50AM0.83m | ||||||||
Low Tide | 1:41PM-0.13m | 2:11AM0.02m | 2:33PM-0.13m | 3:01AM-0.03m | 3:23PM-0.11m | 3:49AM-0.06m | 4:11PM-0.06m | 4:36AM-0.07m | 4:58PM0.01m | 5:23AM-0.04m | 5:45PM0.09m | 6:09AM0.01m | 6:33PM0.17m | ||||||||
 | |  | |  | | |  |  | |  |  | | | | | | | | | | |
 | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — |
mm | — | — | 1 | — | 1 | 3 | — | 8 | 3 | — | — | — | 3 | 1 | — | — | — | — | — | 1 | 2 |
Temp °C | 30 | 30 | 30 | 29 | 31 | 31 | 30 | 31 | 27 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 30 | 32 | 30 |
Feels °C | 34 | 33 | 33 | 32 | 35 | 33 | 33 | 34 | 27 | 34 | 32 | 31 | 32 | 32 | 31 | 31 | 32 | 32 | 33 | 36 | 33 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | SSE 4 | NE 8 | SSE 5 | NE 8 | NE 8 | SSE 3 | NE 8 | NE 8 | SE 4 | S 4 | NE 13 | ENE 12 | S 5 | ENE 11 | ESE 4 | SSE 5 | ESE 4 | SSE 5 | ESE 8 | ESE 8 |
| kJ | 5 | 4 | 3 | 5 | 3 | 3 | 1 | 3 | 3 | 4 | 1 | 6 | 14 | 7 | 12 | 8 | 9 | 3 | 6 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | ESE 4 | E 7 | E 7 | NE 9 | E 7 | E 8 | NE 8 | E 7 | E 7 | NE 8 | E 8 | NE 8 | NE 8 | ENE 12 | ESE 8 | ESE 8 | E 8 | ESE 8 | ESE 8 | E 8 | NNE 6 |
| kJ | 2 | 3 | 1 | 3 | 1 | 1 | 3 | 1 | 1 | 2 | 1 | 2 | 2 | 13 | 6 | 6 | 5 | 6 | 7 | 5 | 3 |
Swell 3 Height (m) Direction Period (s) | ENE 7 | ENE 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 9 | E 7 | NE 13 | E 7 | E 8 | E 8 | E 8 | NE 10 | ESE 8 | E 8 | E 8 | — | E 8 |
| kJ | 4 | 7 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 7 | 1 | 1 | 4 | 5 | 4 | 6 | 5 | 5 | — | 5 |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | SSE 5 | — | SSE 2 | S 3 | — | SSE 2 | SSE 4 | S 4 | SE 4 | SE 4 | SE 5 | ESE 5 | SE 5 | SSE 5 | SE 4 | SSE 6 | — | — | S 3 |
| kJ | — | 2 | 6 | — | 1 | 3 | — | 1 | 7 | 2 | 4 | 7 | 21 | 17 | 31 | 8 | 3 | 10 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1746 | 1746 | 1236 | 312 | 1746 | 919 | 1031 | 1746 | 1260 | 1031 | 1018 | 715 | 1516 | 1693 | 238 | 238 | 264 | 238 | 292 | 311 | 311 |
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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