Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 18 Aug 2026:
- Most powerful swell: Friday 21 Aug, 2AM (local time) - 2.5ft (0.7m), 4s period, SSE swell with 18 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 Friday (Aug 21) at 2AM. Winds are predicted to be cross-offshore 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 23) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Fri 21st Aug) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, this is Rusty, and I gotta be straight with you... the next couple of weeks are looking pretty bleak for a paddle.
For the next 16 days, starting now, there’s basically nothing on the table. We’re looking at a long, frustrating stretch of tiny, weak surf. The only spot that ever gets a mention is the Jupiter Inlet South Jetty. It’s an advanced spot, but it’s rarely breaking, and even when it does, the conditions are just not there.
The first real chance of anything rideable doesn't show up until well into the second week. The water temp is sitting around 87°, which is a touch warmer than usual for this time of year, but nobody’s gonna be worrying about that with no waves.
The whole run is plagued by tiny swells, mostly from the east and northeast, barely scraping 0.7 ft for the first week. The energy is pathetic, with values like 12 (12) or 19 (19) – that’s barely a ripple. Winds are mostly light and variable, with some glassy moments on Tuesday the 18th afternoon, but there’s nothing for that wind to work with.
Things start to look a little less terrible around the 28th of August, with a few morning sessions showing a cross-offshore breeze from the southwest, and the swell trying to pick up a bit. On the morning of the 29th, we get a rare offshore wind from the WSW, with the swell holding around 1.0 ft from the ENE with a period of 10 seconds. The combined energy is still weak at 31 (31), but it’s the best we’ve seen. By the 30th of August, the swell nudges up to 1 ft and the energy hits 45 (45) – still small, but the early morning on the 30th has a clean look with a light cross-offshore breeze.
If you absolutely have to get wet, the first few days of September are the only window that might offer something. The morning of the 1st shows a 2 ft swell from the ENE at 8 seconds, with light cross-onshore winds from the ESE. The energy is up to 57 (57) – the highest in the whole forecast, but it’s still a tiny, short-period windswell with a messy wind. The 2nd of September morning is similar with 1 ft from the NE, but the wind is a stronger ESE at 12 mph, making it choppy.
Honestly, for a spot that’s already fairly inconsistent, this is a pretty normal blank run. The forecast can change, but right now, it’s a hard pass. The setup here is more interesting for kite surfing than a traditional paddle session.
This is Rusty, signing off. Better luck next time.
Short Range ForecastLight rain (total 5mm), mostly falling on Thu night. Warm (max 33°C on Tue afternoon, min 27°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sun night. Warm (max 30°C on Fri afternoon, min 26°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 11 | ESE 10 | ESE 10 | ESE 9 | ENE 9 | E 9 | E 8 | SSE 3 | SSE 4 | S 4 | S 4 | S 4 | ENE 9 | ENE 8 | SSE 4 | ENE 9 | ENE 8 | SSE 4 | SE 4 | SE 4 | SE 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 11 | 10 | 9 | 8 | 8 | 6 | 5 | 4 | 18 | 7 | 7 | 10 | 7 | 7 | 16 | 7 | 7 | 18 | 8 | 9 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | off | cross-off | on | cross-off | cross-off | on | cross-off | off | on | cross-off | glassy | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 1:27PM0.81m | 1:33AM0.78m | 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 | ||||||||
Low Tide | 7:23PM0.24m | 7:48AM0.14m | 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 | ||||||||
 | |  | | |  | |  | | | | | | | | | | | |  |  | |
 | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — |
mm | — | — | — | — | — | 1 | — | 1 | 3 | — | — | 1 | — | — | 5 | — | 3 | 9 | 4 | — | 1 |
Temp °C | 30 | 33 | 32 | 30 | 31 | 30 | 30 | 31 | 29 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 30 | 28 | 29 | 30 | 29 |
Feels °C | 32 | 37 | 34 | 34 | 35 | 33 | 34 | 34 | 31 | 31 | 33 | 31 | 33 | 32 | 31 | 32 | 32 | 31 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SSE 4 | ESE 10 | ESE 10 | ENE 6 | ENE 6 | ENE 6 | SSE 3 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | SSE 4 | ENE 8 | ENE 8 | SE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 1 | 10 | 9 | 4 | 4 | 3 | 1 | 1 | 6 | 6 | 6 | 5 | 2 | 7 | 7 | 4 | 7 | 6 | 6 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | E 10 | ENE 10 | ESE 9 | ENE 9 | E 9 | E 8 | NE 6 | E 8 | E 8 | E 8 | NE 7 | ENE 9 | E 8 | E 8 | ENE 9 | E 8 | E 12 | E 9 | E 9 | E 8 |
| kJ | 11 | 8 | 9 | 8 | 8 | 6 | 5 | 1 | 1 | 1 | 1 | 2 | 7 | 1 | 1 | 7 | 1 | 3 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | E 8 | N 4 | NE 6 | E 9 | SE 9 | E 9 | NE 6 | E 8 | NE 5 | — | — | E 9 | E 9 | E 13 | E 13 | E 8 | E 12 | E 7 | E 12 | E 11 | E 11 |
| kJ | 1 | 1 | 1 | 7 | 3 | 1 | 1 | 1 | 1 | — | — | 2 | 2 | 3 | 3 | 1 | 3 | 1 | 3 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | WNW 2 | — | S 3 | — | — | S 3 | S 3 | SSE 3 | SSE 4 | S 4 | S 4 | S 4 | — | SE 3 | SSE 4 | — | SE 4 | SSE 4 | SE 4 | SE 4 | SE 4 |
| kJ | 1 | — | 4 | — | — | 2 | 2 | 4 | 18 | 7 | 7 | 10 | — | 2 | 16 | — | 7 | 18 | 8 | 9 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 238 | 381 | 238 | 311 | 311 | 406 | 441 | 441 | 857 | 1746 | 1693 | 756 | 1089 | 328 | 327 | 112 | 857 | 113 | 112 | 1371 | 273 |
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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