Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 19 Aug 2026:
- Most powerful swell: Wednesday 26 Aug, 11AM (local time) - 2.5ft (0.7m), 4s period, SE swell with 20 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 0.7m 4s and forecast to arrive on Wednesday (Aug 26) at 11AM. 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 21) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Wed 26th Aug) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s call it like it is.
We’ve got a flat spell that’s gonna last. From now, starting Wednesday the 19th, clear through the first week and into Tuesday the 2nd of September, there is just no real surf. The numbers are all tiny. The combined wave energy is stuck in the weak zone—mostly reading (12) to (19) for ages, and only creeping up to the (45) to (58) range at the very end of the month. That’s nothing.
Water temp is a balmy 87°, which is a touch warmer than average for this time of year, but that’s not gonna help the waves.
Jupiter Inlet South Jetty is the only break in play. It’s an advanced spot for when it’s working, but with swell heights stuck at 0.6ft to 1ft for the first week, and periods of 4 to 9 seconds, there’s no power. We do get a few glassy mornings – Thursday the 20th and Saturday the 22nd – but it’s flat calm. Some morning winds act like a light offshore, but again, with 0.6ft of swell, it’s just a pond.
Toward the end of the month and into the 1st of September, we see a small pulse: 2ft to 2ft NNE swell with 6-second periods. The energy (45 to 58) is still weak. It’s not enough for a proper paddle. With the winds mostly onshore or cross-onshore that week, it’s gonna be choppy and messy. This setup honestly looks more interesting for a kite than a surfboard.
Even the better period a few days later on the 3rd of September, with that 1ft swell and a 10-second window, is just a tease. The height isn’t there. This is a long, dry stretch. It happens.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Fri afternoon. Warm (max 31°C on Wed afternoon, min 27°C on Thu morning). Winds increasing (calm on Thu morning, fresh winds from the SSW by Fri night). | Days 4-6 Weather SummaryHeavy rain (total 26mm), heaviest during Sun afternoon. Warm (max 30°C on Sat afternoon, min 26°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | ESE 9 | ENE 9 | E 9 | E 8 | E 8 | ENE 8 | S 4 | S 4 | S 4 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 3 | ESE 4 | ESE 4 | SE 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 8 | 6 | 5 | 1 | 6 | 8 | 7 | 10 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 3 | 5 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-off | glassy | cross-on | cross-off | cross-off | cross-on | cross | glassy | cross-on | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 2:16PM0.77m | 2:21AM0.74m | 3:09PM0.73m | 3:14AM0.71m | 4:09PM0.71m | 4:13AM0.69m | 5:11PM0.71m | 5:14AM0.70m | 6:09PM0.74m | 6:11AM0.73m | 6:59PM0.78m | 7:02AM0.76m | 7:43PM0.83m | ||||||||
Low Tide | 8:16PM0.31m | 8:43AM0.19m | 9:13PM0.35m | 9:41AM0.23m | 10:12PM0.37m | 10:38AM0.23m | 11:08PM0.37m | 11:31AM0.21m | 00:00AM0.35m | 12:19PM0.18m | 00:47AM0.31m | 1:02PM0.15m | 1:29AM0.26m | ||||||||
 | |  |  | | | | | | |  | | | | | | | | | |  | |
 | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — |
 | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — |
mm | — | — | 1 | 1 | 2 | 4 | 1 | 5 | 6 | — | 2 | 3 | — | 9 | 2 | 4 | 1 | 5 | 1 | — | — |
Temp °C | 30 | 31 | 30 | 29 | 30 | 28 | 29 | 31 | 27 | 28 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 |
Feels °C | 33 | 33 | 32 | 34 | 34 | 30 | 32 | 34 | 26 | 32 | 32 | 31 | 33 | 31 | 30 | 31 | 30 | 31 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | E 8 | E 8 | SSE 4 | ENE 8 | SSE 4 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | SE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | SSE 4 | SSE 4 | NE 7 |
| kJ | 4 | 4 | 3 | 5 | 1 | 4 | 6 | 5 | 7 | 7 | 7 | 7 | 4 | 7 | 6 | 6 | 6 | 1 | 6 | 3 | 2 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ENE 9 | E 9 | NE 6 | NE 6 | ENE 8 | E 8 | ENE 8 | NE 6 | E 9 | E 8 | E 8 | ENE 9 | E 8 | E 7 | E 9 | E 9 | NE 8 | E 8 | NE 8 | E 11 |
| kJ | 8 | 8 | 6 | 1 | 1 | 6 | 1 | 6 | 2 | 2 | 1 | 1 | 7 | 1 | 1 | 2 | 1 | 2 | 1 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | E 9 | SE 9 | E 9 | — | E 8 | E 8 | — | E 8 | E 9 | E 13 | E 13 | E 13 | E 8 | E 12 | E 12 | E 12 | E 11 | E 8 | NE 7 | E 8 | E 11 |
| kJ | 7 | 3 | 1 | — | 1 | 1 | — | 1 | 2 | 3 | 3 | 3 | 1 | 3 | 3 | 3 | 3 | 1 | 2 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 2 | — | SSE 3 | — | S 4 | S 4 | S 4 | SSE 4 | SE 3 | SE 3 | — | SE 4 | SSE 3 | SE 4 | SE 4 | SE 3 | ESE 4 | ESE 4 | SE 4 |
| kJ | — | — | 1 | — | 1 | — | 8 | 7 | 10 | 3 | 2 | 3 | — | 5 | 4 | 3 | 3 | 6 | 3 | 5 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 311 | 311 | 381 | 441 | 857 | 857 | 1336 | 857 | 484 | 292 | 327 | 327 | 857 | 867 | 857 | 602 | 1722 | 273 | 327 | 857 | 307 |
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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