Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 21 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 2PM (local time) - 0.5ft (0.2m), 15s period, ENE swell with 21 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 0.2m 15s and forecast to arrive on Thursday (Aug 27) at 2PM. 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 Saturday (Aug 22) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Thu 27th Aug) | 0.5ft (0.2m) 15s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Hey, Rusty here. I’m looking at the same 16-day picture, and the short story is: bring a longboard, or better yet, bring a fishing rod. This is a flat, messy stretch with very little to offer.
Friday, August 21st through Thursday, August 27th is a total dud. Tiny swell, nearly all onshore or cross-onshore wind, and the combined wave energy is in the single digits (10) – practically flat. The water is warm at 86°F, which is average for the season, but that’s the only good news.
The first real sign of life is Thursday, August 27th afternoon. The swell shows 0.7ft from the ENE with a long period of 15 seconds, but the energy is still weak (32). That’s a groundswell, but it’s so small and the wind is onshore from the East at 9 mph, so it’ll be a bumpy, weak mess.
Friday, August 28th has a bit more energy (46) but still the same tiny 0.7ft swell at 13 seconds from the ENE with onshore winds. The energy is there, the quality is not.
The only day that might get a few locals out is Sunday, August 30th. The morning shows the biggest swell of the whole run: 3ft from the ESE at 5 seconds. That’s a short period windswell, and with an onshore wind from the ESE at 6 mph, it’s going to be choppy and weak. The combined energy is still weak (40). The break is Jupiter Inlet South Jetty, and the swell direction isn’t the optimum NE for that spot.
From Monday, August 31st onward, we’re back to tiny, onshore slop. Swell drops to 0.7ft to 2ft with weak energy (12-26), and the wind is onshore from the East or ENE.
The best of the worst is that 3ft bump on Sunday, August 30th, but it’s for experts only because it’s so weak and choppy. For a beach and jetty setup with this poor quality and onshore wind, this is a kite surfer’s forecast, not a paddle surfer’s.
This is a long, quiet period for this zone. It’s unusual, but it happens. Don’t expect much.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Fri afternoon. Warm (max 31°C on Fri afternoon, min 26°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Wed night. Warm (max 30°C on Mon afternoon, min 28°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 8 | ENE 8 | S 4 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 3 | SE 4 | SE 4 | ESE 4 | ESE 4 | ENE 4 | ESE 4 | ESE 4 | ENE 15 | ENE 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 2 | 5 | 5 | 9 | 6 | 3 | 11 | 11 | 21 | 18 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross | on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | on | on | cross-on |
High Tide | 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 | 7:49AM0.80m | 8:23PM0.86m | 8:33AM0.84m | 9:00PM0.89m | ||||||||
Low Tide | 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 | 1:43PM0.12m | 2:07AM0.20m | 2:21PM0.09m | 2:44AM0.15m | |||||||
 | |  | | | |  | | | |  |  | | | | | | | | |  | |
 | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — |
mm | 1 | 5 | 6 | 1 | 2 | 4 | — | 1 | 3 | — | — | 1 | 1 | — | 1 | — | 1 | 5 | — | — | — |
Temp °C | 29 | 31 | 30 | 28 | 30 | 30 | 28 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 33 | 35 | 32 | 31 | 33 | 32 | 33 | 32 | 30 | 32 | 32 | 32 | 32 | 31 | 31 | 32 | 32 | 32 | 32 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | E 8 | S 3 | ENE 8 | ENE 8 | ESE 4 | ENE 8 | ENE 8 | SSE 4 | SSE 4 | E 8 | E 8 | NE 8 | NE 7 | ESE 4 | SE 4 | E 7 | ESE 4 | SSE 4 | ENE 14 |
| kJ | 6 | 6 | 5 | 1 | 7 | 7 | 1 | 7 | 6 | 3 | 1 | 1 | 1 | 2 | 2 | 6 | 4 | 1 | 11 | 2 | 18 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | NE 7 | ENE 9 | E 8 | E 8 | ENE 9 | — | E 12 | ENE 8 | ENE 8 | NE 8 | NE 8 | E 8 | E 11 | E 7 | E 7 | E 16 | NE 15 | ENE 15 | E 7 |
| kJ | 1 | 1 | 2 | 7 | 1 | 1 | 7 | — | 3 | 6 | 6 | 2 | 2 | 1 | 2 | 1 | 1 | 5 | 9 | 21 | 1 |
Swell 3 Height (m) Direction Period (s) | E 8 | NE 7 | E 9 | — | E 13 | E 13 | S 4 | E 8 | E 7 | ESE 3 | E 9 | E 8 | E 8 | E 11 | E 8 | E 10 | E 10 | E 10 | E 7 | ENE 8 | E 10 |
| kJ | 1 | 2 | 2 | — | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | 1 | 6 | 2 |
Wind waves Height (m) Direction Period (s) | SSE 3 | SE 3 | S 4 | WSW 2 | SSE 3 | SSE 3 | — | SE 4 | SSE 3 | — | ESE 3 | SE 3 | SE 4 | SE 4 | ESE 4 | — | ENE 4 | ESE 4 | — | ESE 4 | ESE 4 |
| kJ | 2 | 1 | 7 | 1 | 1 | 7 | — | 4 | 3 | — | 1 | 2 | 5 | 5 | 9 | — | 3 | 11 | — | 5 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 381 | 1795 | 638 | 441 | 327 | 756 | 715 | 857 | 474 | 857 | 484 | 327 | 327 | 857 | 327 | 327 | 1585 | 328 | 366 | 366 | 203 |
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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