Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 26 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 2AM (local time) - 2ft (0.6m), 7s period, E swell with 39 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 0.6m 7s and forecast to arrive on Sunday (Aug 30) at 2AM. 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 Sunday (Aug 30) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 30th Aug) | 2ft (0.6m) 7s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, let’s look at this. The forecast is pretty flat and poor for the next couple of weeks. The first surfable window doesn’t show up until the morning of September 7th, so there’s a long stretch of nothing to get through.
The water at Jupiter Inlet South Jetty (Florida) is running at about 87°F, which is about 2°F warmer than the usual average for this time of year — a bit warmer than normal, but nothing extreme.
The real standout is the morning of Wednesday, September 9th. That’s when we get 1.1m (about 4ft) of NE groundswell with an 11-second period, combined wave energy hitting 337 (moderate energy), and a clean WSW cross-offshore breeze. That’s a solid setup for the jetty, with the swell direction matching the optimum NE. The waves will have some power and shape, and the wind will keep them clean. Heads up though — crowds are often around here, so expect some company.
The morning of September 8th also offers a decent look: 1.0m (about 3ft) NE swell, 9-second period, with a clean offshore wind from the W. Energy is moderate (164), but the swell is a bit smaller and shorter. It’s a good warm-up but not the best.
By September 10th, Thursday morning, glassy conditions return with 0.9m (about 3ft) of NE swell, but the energy is weaker (169) and the waves are just ordinary. The two weeks ahead are mostly flat, with very low energy (most values under 50) and constant onshore or cross-onshore winds that keep the surf choppy and messy. A few glassy moments on September 5th won’t give any rideable swell.
If you’re a beginner, anything over about 5ft can be too big, so those 3–4ft days are more for intermediate and advanced surfers. This is a beach/jetty setup, so long-period groundswell like the 11-second stuff can break a bit straight, but the jetty helps focus it.
Bottom line: sit tight until September 7th, then the 9th is your best bet. The second week looks promising but less certain, so keep checking back.
Rusty
Short Range ForecastModerate rain (total 17mm), heaviest on Wed night. Warm (max 30°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sun afternoon. Warm (max 30°C on Sat afternoon, min 28°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | SE 4 | SE 4 | SE 4 | ENE 15 | SE 4 | ENE 14 | ENE 13 | ENE 12 | ENE 12 | ESE 4 | ENE 11 | E 7 | ENE 7 | ENE 7 | E 4 | ENE 10 | E 4 | E 4 | E 5 | ENE 5 | ENE 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 5 | 12 | 21 | 6 | 18 | 17 | 15 | 14 | 12 | 12 | 39 | 17 | 17 | 10 | 9 | 11 | 13 | 27 | 21 | 26 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | on | on | on | on | on | cross-on | on | on | on | cross-on | on | on | on | on |
High Tide | 8:23PM0.86m | 8:33AM0.84m | 9:00PM0.89m | 9:15AM0.88m | 9:37PM0.91m | 9:57AM0.91m | 10:14PM0.91m | 10:39AM0.93m | 10:51PM0.90m | 11:22AM0.93m | 11:31PM0.89m | 12:09PM0.92m | 00:13AM0.87m | ||||||||
Low Tide | 1:43PM0.12m | 2:07AM0.20m | 2:21PM0.09m | 2:44AM0.15m | 3:00PM0.09m | 3:20AM0.10m | 3:38PM0.10m | 3:57AM0.06m | 4:19PM0.12m | 4:37AM0.04m | 5:01PM0.16m | 5:20AM0.04m | 5:47PM0.21m | ||||||||
 |  |  | | |  | | |  | | | | | |  | | | | | | | |
 | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 7:46 | — | — | 7:45 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — |
mm | — | 2 | 5 | 8 | 1 | — | — | — | 1 | 2 | — | 1 | — | 2 | — | — | — | — | 3 | 1 | — |
Temp °C | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 31 | 31 | 30 | 33 | 33 | 32 | 32 | 32 | 31 | 32 | 33 | 31 | 34 | 32 | 32 | 33 | 32 | 32 | 33 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 4 | E 7 | E 7 | ENE 8 | SE 4 | ENE 8 | ENE 13 | SE 4 | ENE 8 | ENE 11 | ENE 11 | ENE 11 | ENE 7 | SE 4 | ENE 7 | ENE 8 | ENE 7 | NE 9 | ENE 8 | SE 5 | E 12 |
| kJ | 9 | 1 | 1 | 7 | 4 | 6 | 17 | 4 | 6 | 12 | 12 | 12 | 17 | 4 | 5 | 6 | 5 | 3 | 6 | 8 | 3 |
Swell 2 Height (m) Direction Period (s) | NE 7 | E 10 | E 16 | ENE 15 | S 4 | ENE 14 | ENE 9 | ENE 8 | ENE 12 | ENE 8 | ENE 8 | E 8 | ENE 10 | ENE 10 | S 4 | ENE 10 | ENE 10 | E 8 | NE 9 | ENE 8 | E 12 |
| kJ | 2 | 2 | 5 | 21 | 3 | 18 | 8 | 14 | 14 | 6 | 6 | 1 | 10 | 10 | 1 | 9 | 9 | 1 | 3 | 6 | 3 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | E 10 | ENE 8 | E 9 | NE 7 | ENE 12 | — | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 10 | S 4 | E 8 | — | E 7 | NE 9 | NE 9 |
| kJ | 2 | 2 | 2 | 2 | 6 | 2 | 2 | 15 | — | 1 | 1 | 1 | 1 | 1 | 10 | 2 | 1 | — | 1 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | SE 4 | SE 4 | ESE 4 | ESE 3 | ESE 4 | E 4 | E 7 | SE 4 | ENE 7 | E 4 | E 4 | E 4 | E 4 | E 5 | ENE 5 | ENE 4 |
| kJ | 4 | 5 | 12 | 14 | 3 | 5 | 5 | 3 | 3 | 12 | 9 | 39 | 5 | 17 | 9 | 8 | 11 | 13 | 27 | 21 | 26 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 327 | 1845 | 273 | 21 | 1590 | 112 | 238 | 1100 | 327 | 857 | 773 | 857 | 919 | 406 | 857 | 857 | 857 | 1058 | 1059 | 1593 | 397 |
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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