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Rio Grande Jetties Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Rio Grande Jetties surfForecast / Rio Grande Do Sul / Brazil
12 Day Weather and Surf, issued 2 pm Saturday 13 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Rio Grande Jetties surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rio Grande Jetties sea temperature is
22.0° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Rio Grande Jetties this week:
The surf forecast for Rio Grande Jetties over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 15) at 9PM. The primary swell is predicted to be 1.0m and 5s period with a secondary swell of 0.5m and 7s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rio Grande Jetties in the next 12 days are 1.7m 8s and forecast to arrive on Tuesday (Dec 16) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Saturday (Dec 20) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 15th Dec) | 3.5ft (1.0m) 5s |
| Best Surf | 9PM (Mon 15th Dec) | 3.5ft (1.0m) 5s |
| Most Powerful | 9PM (Tue 16th Dec) | 5.5ft (1.7m) 8s |
Table - best surf conditions forecast for Rio Grande Jetties over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 9mm), mostly falling on Mon night. Warm (max 26°C on Sat afternoon, min 18°C on Mon night). Mainly fresh winds. | Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 24°C on Fri morning, min 16°C on Tue night). Winds increasing (calm on Wed morning, fresh winds from the NE by Thu night). | ||||||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 5 | 10 | 4 | 5 | 5 | 6 | 8 | 9 | 9 | 10 | 10 | 4 | 6 | 9 | 16 | 12 | 11 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 130 | 88 | 57 | 61 | 74 | 33 | 50 | 42 | 34 | 71 | 251 | 131 | 116 | 125 | 33 | 18 | 145 | 2 | 5 | 31 | 12 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross | cross- on | cross- on | cross | cross- off | cross | cross | cross- off | cross- on | cross- on | glass | cross- on | cross | cross | cross- on | cross | cross | cross- on | cross | glass | ||
High Tide / height (m) | 3:21PM 0.38 | 8:28PM 0.27 | 3:30AM 9:50AM 0.26 0.17 | 4:31PM 0.31 | 10:03PM 0.28 | 4:32AM 10:26AM 0.28 0.18 | 5:48PM 0.25 | 11:21PM 0.30 | 5:33AM 10:59AM 0.30 0.19 | 7:12PM 12:23AM 0.22 0.32 | 6:28AM 11:26AM 0.32 0.20 | 1:15AM 0.34 | 7:18AM 0.33 | 2:01AM 0.34 | 8:01AM 0.33 | 2:44AM 0.33 | 8:37AM 0.34 | ||||||
Low Tide / height (m) | 7:08PM 12:17AM 0.27 0.17 | 7:15AM 0.14 | 12:13PM 0.14 | 7:32PM 1:23AM 0.25 0.21 | 8:26AM 0.17 | 1:41PM 0.12 | 7:58PM 2:30AM 0.23 0.23 | 9:36AM 0.19 | 2:55PM 0.08 | 8:20PM 0.21 | 3:30AM 10:45AM 0.25 0.20 | 3:55PM 0.05 | 4:22AM 0.26 | 4:46PM 0.03 | 5:04AM 0.27 | 5:30PM 0.03 | 5:37AM 0.28 | ||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||
| Sunrise | - | - | 5:15 | - | - | 5:16 | - | - | 5:16 | - | - | 5:16 | - | - | 5:16 | - | - | 5:16 | - | - | 5:16 | ||
| Sunset | 7:29 | - | - | 7:30 | - | - | 7:30 | - | - | 7:30 | - | - | 7:30 | - | - | 7:31 | - | - | 7:32 | - | - | ||
 |  | | |  |  |  |  | |  | | | | | | | |  | | | | |||
Rain (mm) | - | - | - | - | - | - | 4 | 5 | - | 2 | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 26 | 24 | 24 | 25 | 23 | 24 | 21 | 20 | 21 | 20 | 18 | 19 | 20 | 19 | 22 | 22 | 21 | 24 | 25 | 23 | 26 | ||
| Feels °C (?) | 25 | 24 | 25 | 24 | 22 | 26 | 18 | 19 | 16 | 16 | 13 | 17 | 17 | 15 | 20 | 19 | 18 | 23 | 24 | 21 | 28 | ||
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FREE! Surf-Forecast.com widget for your website
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.
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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 12 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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