Rio Grande Jetties surfForecast / Rio Grande Do Sul / Brazil

information circle12 Day Weather and Surf, issued 2 am Tuesday 30 Dec 2025 -03
Forecast 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
24.9° C
(Which is 2.4°C warmer than normal for this time of year)


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 Tuesday (Dec 30) at 9AM. The primary swell is predicted to be 1.2m and 18s period. 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 2.5m 13s and forecast to arrive on Saturday (Jan 03) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Dec 31) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 30th Dec)4ft (1.2m) 18s
Best Surf 9AM (Tue 30th Dec)4ft (1.2m) 18s
Most Powerful 9PM (Sat 3rd Jan)8ft (2.5m) 13s

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 Some drizzle, heaviest during Thu night. Warm (max 30°C on Thu morning, min 20°C on Tue night). Winds increasing (calm on Wed morning, fresh winds from the S by Thu afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Fri morning, min 17°C on Fri night). Winds decreasing (strong winds from the S on Fri afternoon, light winds from the E by Sun night).

Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
0
0
1
0
0
0
0
0
2
0
0
3
1
1
1
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SSE
1.3
SSE
0.9
SSE
0.7
SSE
0.6
SSE
0.5
SSE
0.4
SSE
0.9
S
1.1
SE
1.1
SSE
1.2
SSE
1.5
SSE
1.6
SSE
1.7
SSE
2.3
SSE
1.6
SSE
1.5
S
1.3
SSE
1
SSE
0.9
SSE
0.7
S
Period(s) (?)1816141212111046101071313121111101098
Wave
Graph
(?)Metric surfscale
Energy kJ (?)826822290133106664122772702851988381074148065752533117212768
Wind
(km/h)
10
N
15
ENE
25
NNE
15
NNW
15
E
20
N
15
W
35
S
5
ENE
15
SW
35
S
15
S
15
SW
15
S
35
S
25
SW
30
S
10
SE
0
W
20
ENE
35
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
crosscross-
off
oncross-
off
cross-
off
cross-
on
cross-
on
cross-
off
crosscrosscross-
off
cross-
on
crosscross-
off
cross-
on
cross-
on
glasscross-
on
cross-
on
High Tide
/ height (m)
10:55AM
0.14
3:53PM
0.26
3:54AM 11:13AM
0.41 0.11
5:05PM
0.20
4:59AM 11:39AM
0.46 0.11
6:15PM 2:00AM
0.15 0.37
6:09AM
0.51
12:08PM
0.13
7:20PM 2:34AM
0.12 0.36
7:18AM
0.54
8:18PM
0.10
3:13AM 8:23AM
0.32 0.57
9:11PM
0.11
3:53AM 9:25AM
0.27 0.58
10:02PM
0.12
Low Tide
/ height (m)
11:57AM
0.13
7:23PM
0.11
8:46AM
0.07
1:36PM
0.08
8:10PM
0.08
9:56AM
0.09
2:54PM
0.01
8:57PM 2:26AM
0.06 0.37
11:05AM
0.13
3:59PM
-0.04
9:51PM
0.04
3:30AM
0.35
4:57PM
-0.08
10:48PM
0.02
4:24AM
0.31
5:51PM
-0.09
11:46PM
0.01
5:15AM
0.26
6:42PM 12:46AM
-0.08 0.01
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Sunrise5:22--5:24--5:24--5:24--5:26--5:26--5:28--
Sunset-7:37--7:37--7:37--7:37--7:37--7:37--7:37-
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
Rain (mm)
--------1------------
Temp. °C262622272725302422242219222321202120202121
Feels °C (?)252421302826282122231713192016141416181816
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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