Surf Forecasts:
Rio Grande Jetties surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 12PM (local time) - 5ft (1.5m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 9AM (local time) - 5ft (1.6m), 9s period, E swell with 395 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 3AM (local time) - 2.5ft (0.8m), 7s period with ESE swell.
Best Forecast Surf Conditions for Rio Grande Jetties this week:
The surf forecast for Rio Grande Jetties over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 3AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.5m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rio Grande Jetties in the next 16 days are 1.6m 9s and forecast to arrive on Sunday (Sep 20) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Sunday (Sep 20) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 15th Sep) | 2.5ft (0.8m) 7s |
| Best Surf | 12PM (Sun 20th Sep) | 5ft (1.5m) 9s |
| Most Powerful | 9AM (Sun 20th Sep) | 5ft (1.6m) 9s |
Table - best surf conditions forecast for Rio Grande Jetties over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Tue afternoon, min 8°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Sun morning. Very mild (max 19°C on Sun afternoon, min 14°C on Thu night). Winds decreasing (fresh winds from the NE on Sat afternoon, light winds from the NW by Sun morning). | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 7 | SSE 10 | S 9 | S 4 | S 8 | S 8 | SSE 10 | SSE 10 | SE 10 | SSE 9 | ENE 6 | E 5 | ENE 5 | SSE 8 | SE 11 | SE 12 | E 9 | E 9 | E 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 62 | 74 | 42 | 27 | 124 | 72 | 210 | 171 | 181 | 73 | 52 | 43 | 94 | 7 | 5 | 6 | 395 | 339 | 210 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | off | off |
High Tide | 11:29PM0.39m | 4:26AM0.36m | 00:18AM0.35m | 5:28AM0.34m | 12:01PM0.46m | 1:03AM0.31m | 6:42AM0.32m | 12:40PM0.47m | 1:45AM0.28m | 1:17PM0.46m | 2:21AM0.25m | 1:49PM0.44m | 2:43AM0.22m | 2:16PM0.42m | 1:56AM0.20m | ||||
Low Tide | 2:05AM0.31m | 7:43AM0.22m | 7:58PM0.04m | 8:17AM0.26m | 8:42PM0.05m | 3:39AM0.26m | 9:24PM0.08m | 4:24AM0.23m | 10:07PM0.12m | 5:07AM0.21m | 10:59PM0.17m | 5:44AM0.18m | 1:26AM0.20m | ||||||
 |  |  |  | | | | | | | |  |  | | |  |  |  | | |
 | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — |
 | 6:19 | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 10 | 1 | — |
Temp °C | 12 | 13 | 16 | 14 | 11 | 12 | 12 | 14 | 15 | 14 | 16 | 17 | 15 | 17 | 17 | 16 | 17 | 19 | 17 |
Feels °C | 10 | 9 | 12 | 10 | 8 | 8 | 9 | 11 | 12 | 12 | 13 | 13 | 11 | 13 | 12 | 11 | 17 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 8 | ESE 8 | ESE 8 | E 8 | S 8 | SSE 10 | SSE 10 | SE 10 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SE 11 | SE 12 | E 9 | E 9 | E 9 |
| kJ | 62 | 52 | 36 | 20 | 5 | 72 | 210 | 171 | 181 | 73 | 52 | 28 | 14 | 7 | 5 | 6 | 395 | 339 | 210 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | S 9 | ENE 8 | ESE 7 | E 8 | E 8 | E 8 | E 8 | E 11 | E 11 | E 11 | SE 13 | SE 12 | S 8 | — | SSE 11 | SSE 10 | S 10 |
| kJ | 57 | 74 | 42 | 19 | 5 | 4 | 5 | 5 | 4 | 2 | 2 | 2 | 7 | 6 | 1 | — | 11 | 10 | 2 |
Swell 3 Height (m) Direction Period (s) | NE 8 | E 9 | SSE 11 | SSE 15 | SSE 13 | SE 12 | E 12 | E 12 | E 12 | — | — | S 14 | — | — | — | — | — | — | — |
| kJ | 16 | 6 | 13 | 22 | 17 | 6 | 3 | 3 | 3 | — | — | 4 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 2 | — | S 4 | S 8 | — | — | — | — | E 5 | ENE 6 | E 5 | ENE 5 | ENE 7 | ENE 7 | ENE 8 | ENE 9 | ENE 9 | WSW 3 |
| kJ | — | 1 | — | 27 | 124 | — | — | — | — | 27 | 50 | 43 | 94 | 254 | 326 | 507 | 727 | 673 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 244 | 0 | 253 | 285 | 248 | 232 | 218 | 248 | 232 | 380 | 536 | 536 | 536 | 536 | 677 | 249 | 0 | 0 |
Best forecast wave conditions in Rio Grande Do Sul | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rio Grande Jetties surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Rio Grande Jetties Surf forecast
The above surf forecast table for Rio Grande Jetties provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rio Grande Jetties can be found by selecting the local surf guide option on the grey menu. Our Rio Grande Jetties 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 (Rio Grande Jetties) 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 Rio Grande Jetties 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.
Rio Grande Jetties is 4 km (2 miles) from the city of Rio Grande. If you plan a holiday in Rio Grande Do Sul, look for hotels and other accommodation in Rio Grande. Rio Grande has rooms for a wide range of budgets as well as car hire and transport links.
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