Arpoador Surf Break

Lat Long: 22.99° S 43.20° W

Arpoador Surf Forecast and Surf Report

Issued: 8 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Arpoador sea temperature is
23.0°C
1.5° 

Arpoador surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Arpoador surf forecast from 14 Sep 2026:

  • Best quality surf: Friday 18 Sep, 3AM (local time) - 4.5ft (1.4m), 13s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 3PM (local time) - 5ft (1.6m), 13s period, SSE swell with 874 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 9PM (local time) - 3.5ft (1.0m), 8s period with SSE swell.

Best Forecast Surf Conditions for Arpoador this week:

The surf forecast for Arpoador over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 9PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.5m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Arpoador in the next 16 days are 1.6m 13s and forecast to arrive on Thursday (Sep 17) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Friday (Sep 18) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 14th Sep)3.5ft (1.0m) 8s
Best Surf 3AM (Fri 18th Sep)4.5ft (1.4m) 13s
Most Powerful 3PM (Thu 17th Sep)5ft (1.6m) 13s

Table - best surf conditions forecast for Arpoador over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what the next couple of weeks are serving up for us in this corner of the world.

Alright, straight up, it's a slow start. We're looking at a bit of a wait for the real fun to begin. The first few days are pretty ordinary, with small, weak swell and tricky winds. But if you can be patient, there's a window that shapes up to be genuinely good, especially for those who know their way around a point break.

So, Monday and Tuesday (the 14th and 15th) are not worth paddling out for. The swell is tiny, around 3ft, and the winds are all over the place. Monday afternoon cleans up a bit with a cross-off breeze, but the energy is just not there. It's a frustrating start.

Things start to wake up on Thursday the 17th. The swell builds to 5ft to 5ft from the SSE, and the period jumps up over 13 seconds on Thursday afternoon – that’s proper groundswell energy. The wind is a clean cross-off from the east, and the combined energy reading hits a moderate 909. For a beginner spot like Arpoador, this is starting to get a bit punchy, but the bigger period means those waves will have some shape. It’s still a bit marginal for a full recommendation though.

Now, the standout. Sunday the 20th is the day to circle on your calendar. We’ve got a 7ft east swell rolling in, and here’s the kicker – it’s glassy. The wind is from the NE at just 3 mph, making it a millpond out there. The combined energy is a solid 656, meaning there's plenty of push. For Arpoador, 7ft from the east is getting up there, so this one is for the more experienced crew; beginners might find it a handful. The water temperature is sitting at a pleasant 73°, which is a touch warmer than normal for this time of year, so it’ll feel nice on the skin. This is the one.

The following week (21st to 24th) drops right back off. We’re looking at a real flat spell with waves dropping below 3ft and very little energy. Not much to get excited about there.

Then, late in the window, there’s another pulse of energy. Friday the 25th shows promise. The morning has a clean 4ft swell from the south with a long 11-second period, the wind is a light offshore from the NE, and the combined energy is up at 385. The surf should be clean and lined up, making for a really nice session at Arpoador. It’s not the size of the 20th, but the conditions look sweet.

So to wrap it up: the first week is a write-off until Sunday the 20th for the big, glassy stand-out day, and then the second week has a solid, clean option on Friday the 25th. A bit of a waiting game, but there are gems in there.

Rusty, signing off.

Short Range Forecast

Heavy rain (total 30mm), heaviest during Mon morning. Warm (max 20°C on Tue morning, min 18°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Thu morning. Warm (max 22°C on Fri morning, min 18°C on Thu morning). Wind will be generally light.

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
0
0
0
1
1
1
2
1
2
0
1
2
0
1
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSE
8
0.9
SSE
9
1
SSE
8
0.8
S
11
1.1
SSE
10
1.1
SSE
9
1
SSE
8
0.9
SSE
10
0.9
S
12
1.4
SSE
10
1.6
SSE
13
1.3
S
12
1.3
S
12
1.1
S
11
0.9
S
11
1.5
ESE
7
1.4
ESE
7
1.5
E
7
2
E
8
1.5
ESE
8
1.9
E
8
Wave Graph
Metric surfscale
Energy kJ
96
137
128
146
240
202
151
169
216
334
874
454
488
311
194
181
186
212
442
240
410
Wind (km/h)
5
ENE
10
ENE
5
WNW
10
SW
15
SW
10
SW
10
SW
5
SSW
15
ESE
15
E
15
E
15
ENE
10
ENE
25
E
15
ENE
15
ENE
20
E
20
ENE
5
NE
10
ESE
10
W
Wind State
glassy
cross-off
cross
cross-on
cross-on
cross-on
cross-on
on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross
High Tide
4:07PM1.06m
4:29AM1.13m
4:31PM1.00m
5:08AM1.01m
4:59PM0.91m
6:06AM0.89m
12:29PM0.62m
00:53AM0.40m
7:15AM0.80m
12:41PM0.69m
7:02PM0.75m
8:16AM0.75m
12:53PM0.75m
8:06PM0.72m
12:38PM0.81m
10:05PM0.73m
Low Tide
10:36AM0.23m
10:24PM0.20m
10:44AM0.38m
10:24PM0.24m
10:23AM0.49m
10:24PM0.29m
10:14AM0.56m
1:29PM0.61m
10:36PM0.36m
10:18AM0.62m
3:06PM0.66m
11:00PM0.45m
3:22AM0.44m
5:19PM0.58m
5:15AM0.34m
5:55PM0.48m
mod rain
light rain
mod rain
cloud
light rain
mod rain
light rain
light rain
light rain
light rain
cloud
rain showers
part cloud
part cloud
rain showers
cloud
cloud
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:48
5:48
5:47
5:45
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
5:46
5:46
5:46
5:47
 mm
6
4
6
1
7
2
1
3
1
1
1
6
Temp °C
18
19
19
20
20
19
19
20
20
19
19
18
22
21
19
21
22
19
24
24
24
Feels °C
20
20
20
21
20
21
19
21
19
18
18
16
22
19
18
21
21
18
25
25
27
  • Map Icons:
  • Break
  • 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 Arpoador Surf forecast

The above surf forecast table for Arpoador provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Arpoador can be found by selecting the local surf guide option on the grey menu. Our Arpoador 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 (Arpoador) 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 Arpoador 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.

Arpoador is 14 km (9 miles) from the very large city of Niteroi. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Niteroi. Niteroi has rooms for a wide range of budgets as well as cheap car hire and transport links.

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