Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 12 Sep 2026:
- Best quality surf: Thursday 17 Sep, 8AM (local time) - 4ft (1.2m), 8s period, NE swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 5PM (local time) - 4.5ft (1.3m), 8s period, NNE swell with 204 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 8AM (local time) - 4ft (1.2m), 8s period with NE swell.
Best Forecast Surf Conditions for Jupiter Inlet South Jetty this week:
The surf forecast for Jupiter Inlet South Jetty over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 8AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.1m and 9s. Another secondary swell of 0.3m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Jupiter Inlet South Jetty in the next 16 days are 1.3m 8s and forecast to arrive on Wednesday (Sep 16) at 5PM. 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 5s period and expected on Friday (Sep 18) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 17th Sep) | 4ft (1.2m) 8s |
| Best Surf | 8AM (Thu 17th Sep) | 4ft (1.2m) 8s |
| Most Powerful | 5PM (Wed 16th Sep) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, Rusty here again, but for the imperial crew.
It’s a tough report today, fellas. Jupiter Inlet South Jetty is in a serious lull for the entire 16-day forecast. The data keeps calling it "poor surf conditions," and I can’t find a single window where the swell, wind, and conditions line up for a proper surf. It’s a long stretch of flat and messy.
Right now, starting Saturday the 12th, we’ve got a pathetic 1ft of short-period, 6-second windswell out of the ENE. The water’s about 87°, which is a touch warmer than average for this time of year, but that’s where the good news ends. A light cross-onshore breeze is just rumpling the surface. This flat spell drags on all week. The combined wave energy is in the low double digits (like 8, 11, 18) – that’s next to nothing. You might see a glassy morning on the 14th and 15th for a paddle, but you won’t be riding anything.
We don’t see a real pulse until around Wednesday the 16th, when the swell bumps up to 3ft to 4ft from the NNE. The energy finally hits the 100s, but the wind is still a moderate cross-onshore, keeping it choppy and poor. By the 25th and 26th of September, the swell gets bigger, reaching 6ft with a longer 12-second period and energy readings over 800. But the wind is screaming onshore at 25 to 35 mph from the ENE. That’s blown-out, stormy mess – better for kite surfing than a paddle surfer at this jetty. The very end of the run on the 23rd and 24th offers some clean, glassy offshore winds from the WSW, but the swell is only 1ft – not a surfer’s wave.
For a spot that’s usually fairly consistent, this is a real dry spell. Hold your horses, the charts can always flip.
- Rusty
Short Range ForecastHeavy rain (total 25mm), heaviest during Mon afternoon. Warm (max 30°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Thu night. Warm (max 29°C on Tue afternoon, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 5 | SE 4 | ESE 9 | SE 4 | ENE 9 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 10 | ENE 10 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 4 | 7 | 7 | 12 | 7 | 7 | 7 | 6 | 6 | 9 | 9 | 135 | 204 | 193 | 158 | 154 | 132 | 95 | 65 | 45 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 10:13PM0.99m | 10:42AM1.02m | 10:52PM0.96m | 11:24AM0.98m | 11:31PM0.92m | 12:05PM0.93m | 00:11AM0.87m | 12:47PM0.87m | 00:53AM0.83m | 1:33PM0.83m | 1:40AM0.79m | 2:26PM0.79m | 2:33AM0.77m | |||||||
Low Tide | 3:46PM0.10m | 4:05AM0.02m | 4:29PM0.16m | 4:47AM0.06m | 5:11PM0.23m | 5:29AM0.13m | 5:54PM0.30m | 6:13AM0.21m | 6:40PM0.37m | 7:01AM0.28m | 7:30PM0.43m | 7:57AM0.34m | 8:29PM0.48m | |||||||
 |  | |  |  | | | | | | | | | | | | |  |  |  | |
 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — |
 | 7:28 | — | — | 7:27 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — |
mm | 1 | 3 | 3 | — | 2 | 2 | 7 | 5 | 2 | 1 | 3 | 4 | 4 | 6 | 2 | 1 | 9 | — | — | — |
Temp °C | 30 | 29 | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 27 | 27 | 27 | 27 | 29 | 28 | 28 | 28 | 28 |
Feels °C | 33 | 30 | 31 | 32 | 30 | 32 | 32 | 30 | 32 | 31 | 29 | 27 | 26 | 26 | 30 | 30 | 29 | 32 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 5 | SE 4 | ESE 4 | E 9 | ESE 4 | ENE 8 | ENE 8 | E 8 | SSE 3 | ENE 10 | ENE 10 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
| kJ | 4 | 4 | 2 | 6 | 2 | 7 | 7 | 6 | 1 | 9 | 9 | 135 | 204 | 193 | 158 | 154 | 132 | 95 | 65 | 45 |
Swell 2 Height (m) Direction Period (s) | S 4 | ENE 6 | S 4 | SE 9 | ENE 9 | — | E 8 | E 8 | ENE 8 | — | SSE 4 | S 4 | — | E 9 | SE 4 | E 9 | E 9 | SSE 4 | E 8 | E 8 |
| kJ | 1 | 3 | 1 | 3 | 7 | — | 1 | 1 | 6 | — | 1 | 1 | — | 2 | 2 | 2 | 2 | 4 | 1 | 5 |
Swell 3 Height (m) Direction Period (s) | SE 8 | ESE 8 | ESE 9 | — | S 3 | SE 8 | — | E 11 | E 10 | E 9 | E 7 | E 9 | E 9 | E 9 | E 9 | E 13 | — | E 8 | E 8 | ESE 7 |
| kJ | 3 | 7 | 7 | — | 1 | 3 | — | 2 | 2 | 1 | 1 | 6 | 1 | 2 | 2 | 3 | — | 5 | 1 | 5 |
Wind waves Height (m) Direction Period (s) | SE 4 | S 4 | — | SE 4 | — | — | SSE 4 | SSE 3 | — | — | NE 3 | — | — | ESE 3 | SE 4 | SE 4 | SE 5 | SE 4 | SE 4 | SSE 4 |
| kJ | 3 | 1 | — | 12 | — | — | 2 | 2 | — | — | 7 | — | — | 2 | 4 | 2 | 5 | 4 | 4 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1586 | 112 | 112 | 292 | 112 | 203 | 381 | 397 | 718 | 718 | 718 | 981 | 718 | 718 | 301 | 343 | 343 | 343 | 292 | 0 |
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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