Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 30 Aug 2026:
- Most powerful swell: Friday 4 Sep, 5AM (local time) - 2.5ft (0.8m), 4s period, SE swell with 24 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 4s and forecast to arrive on Friday (Sep 04) at 5AM. 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 Sunday (Aug 30) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Fri 4th Sep) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk shop for Jupiter Inlet South Jetty.
Honestly, mate, it's a bleak outlook for the near future. From Sunday the 30th of August all the way through to about the 8th of September, the surf is pretty much non-existent. We're looking at tiny swell, barely reaching 2 ft, with a lot of onshore and cross-onshore wind that's just going to leave the surface choppy and messy. It’s a long, flat, and blown-out stretch with nothing to get excited about.
Even the slight bump around the 4th of September is just short-period, weak windswell, and with the cross-onshore wind staying moderate, this beach/jetty setup might honestly be better suited for a kiteboard than a surfboard.
But hang in there, because things start to shift in the second week. On Wednesday the 9th of September, we finally see some moderate energy come through (combined energy in the 135-169 range). Swell size is still only 2 to 3 ft, but the period jumps up to 11 seconds, which is a nice little groundswell from the NE. It’ll have better shape and more push, but for a jetty break, a long period NE swell can run a bit straight and close out.
Your real standout is Monday the 14th of September. The swell picks up to a solid 3 to 4 ft from the ENE, with moderate combined energy (72-86). The real winner here is the wind: a clean offshore breeze from the W in the morning, shifting to a clean cross-offshore from the SW in the afternoon. That’s the cleanest surf we’ll see in the whole 16-day window. The water is a warm 86°, which is right on the money for this time of year. Yes, the period is short at 6 seconds, so it'll be a bit soft and not super powerful, but with that clean offshore wind on a jetty, it’s your best chance for some fun, rideable waves. For beginners, the 3 ft with those light winds is manageable, but it's at the upper end of comfortable.
So, you’ve got a long dry spell, then a couple of average days, and then one Monday that’s really the only game in town. Mark the 14th of September.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Sun night. Warm (max 30°C on Sun afternoon, min 28°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Thu afternoon. Warm (max 30°C on Wed afternoon, min 28°C on Fri morning). Wind will be generally light. | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 | ENE 5 | NE 8 | ENE 8 | ENE 7 | ENE 7 | ESE 12 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ESE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | E 8 | E 8 | E 8 | SE 3 |
Wave Graph  | ||||||||||||||||||||
 kJ | 14 | 10 | 14 | 11 | 11 | 10 | 14 | 23 | 20 | 19 | 18 | 16 | 21 | 20 | 19 | 6 | 5 | 5 | 4 | 2 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-off |
High Tide | 10:51PM0.90m | 11:22AM0.93m | 11:31PM0.89m | 12:09PM0.92m | 00:13AM0.87m | 1:00PM0.90m | 1:02AM0.84m | 1:57PM0.87m | 2:00AM0.83m | 3:02PM0.85m | 3:07AM0.82m | 4:13PM0.85m | 4:21AM0.83m | |||||||
Low Tide | 4:19PM0.12m | 4:37AM0.04m | 5:01PM0.16m | 5:20AM0.04m | 5:47PM0.21m | 6:09AM0.05m | 6:40PM0.27m | 7:06AM0.09m | 7:41PM0.32m | 8:12AM0.12m | 8:50PM0.35m | 9:24AM0.13m | 10:02PM0.34m | |||||||
 |  |  | | | | | | |  | | | |  | | | | | |  | |
 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — |
 | 7:43 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — |
mm | 3 | 5 | — | 4 | 1 | 2 | 3 | 5 | 2 | — | 2 | 2 | 4 | 6 | 3 | — | 1 | — | 4 | — |
Temp °C | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 33 | 32 | 33 | 32 | 32 | 32 | 31 | 32 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | ENE 5 | ENE 5 | NE 8 | NE 5 | ENE 7 | ENE 7 | ENE 7 | ENE 11 | NE 4 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ESE 4 | S 4 | ESE 4 | S 4 | E 8 |
| kJ | 14 | 10 | 14 | 3 | 11 | 10 | 10 | 23 | 4 | 19 | 18 | 8 | 7 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | SE 4 | ENE 10 | ENE 10 | ENE 8 | NE 4 | NE 9 | ESE 12 | ESE 11 | ENE 10 | ESE 10 | ESE 9 | ESE 9 | E 9 | E 8 | E 8 | S 4 | E 8 | SSE 4 | E 8 | E 8 |
| kJ | 6 | 10 | 9 | 11 | 3 | 3 | 14 | 22 | 20 | 9 | 8 | 7 | 2 | 1 | 1 | 3 | 5 | 3 | 4 | 1 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | S 4 | S 4 | ENE 10 | NE 9 | E 8 | NE 9 | ENE 7 | ESE 10 | ESE 9 | — | — | — | — | — | ENE 8 | E 8 | E 8 | E 8 | — |
| kJ | 10 | 1 | 2 | 9 | 3 | 1 | 3 | 5 | 9 | 8 | — | — | — | — | — | 6 | 1 | 5 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | — | ESE 4 | SE 3 | SE 3 | SE 4 | SE 3 | SE 4 | E 4 | E 4 | ESE 4 | SE 4 | SE 4 | SE 4 | — | ESE 4 | — | ESE 4 | SE 3 |
| kJ | — | 1 | — | 1 | 2 | 2 | 2 | 3 | 5 | 8 | 6 | 16 | 21 | 20 | 19 | — | 3 | — | 1 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 406 | 1058 | 48 | 857 | 264 | 238 | 366 | 768 | 366 | 366 | 366 | 366 | 1336 | 238 | 112 | 1516 | 327 | 857 | 1746 | 857 |
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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