Arpoador Surf Break

Lat Long: 22.99° S 43.20° W

Arpoador Surf Forecast and Surf Report

Issued: 2 pm 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Arpoador sea temperature is
23.2° C
1.7° 

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


Arpoador surf forecast from 9 Aug 2026:

  • Best quality surf: Sunday 9 Aug, 12AM (local time) - 5ft (1.6m), 15s period, S swell with offshore winds.
  • Most powerful swell: Monday 10 Aug, 9PM (local time) - 7ft (2.1m), 13s period, S swell with 1,584 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 12AM (local time) - 5ft (1.6m), 15s period with S 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 Sunday (Aug 09) at 12AM. The primary swell is predicted to be 1.6m and 15s period with a secondary swell of 0.4m and 4s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Arpoador in the next 16 days are 2.1m 13s and forecast to arrive on Monday (Aug 10) 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 1.2m 5s period and expected on Wednesday (Aug 12) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sun 9th Aug)5ft (1.6m) 15s
Best Surf12AM (Sun 9th Aug)5ft (1.6m) 15s
Most Powerful 9PM (Mon 10th Aug)7ft (2.1m) 13s

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


The Lowdown

Alright, Rusty here, let's have a look at what's on the table for Arpoador over the next couple of weeks.

Alright, so it's a bit of a slow start, but don't write it off. The good news is, the water is sitting at 74°, which is a touch warmer than normal for this time of year, so you won't need the thickest rubber.

We've got a pretty poor outlook for Saturday the 8th of August, with a weak, cross-shore breeze messing things up. Best to give that one a miss.

But then, Sunday the 9th rolls around and things clean right up. The morning is where it's at. We've got a solid 5ft of south swell, with a nice 14-second period on it. That's a proper groundswell. The wind is a gentle cross-offshore breeze out of the north, so the face is going to be smooth. There's a decent amount of energy in the water too (915), so you'll feel that push. This is the standout of the whole forecast window.

Monday the 10th and Tuesday the 11th are a mixed bag. Monday is a write-off with light rain and onshore wind making things choppy. Tuesday morning, though, the wind swings back to a cross-off from the east, cleaning up a 6ft south swell. That'll be worth a paddle-out.

Wednesday the 12th morning is another good call. Clear skies, a light cross-off breeze, and a clean 6ft south swell. The energy is moderate (850), so it'll be fun without being a fight.

Then we get to Friday the 14th of August. The morning is an absolute gem. Glassy conditions, with the wind virtually non-existent from the west-southwest. A clean 5ft south swell with a 14-second period. This is the second standout. It'll be a long-period groundswell, so expect some nice lines and longer lulls between sets, perfect for getting into position at this break.

The second week starts to drop off a bit. The swell sticks around, but the periods shorten up. By the 16th and 17th, we're seeing east and southeast swells with only 8-second periods. That’s short-period wind swell, so the shape will be a bit mushier. Still, the 17th of August morning has a clean 6ft easterly swell with a light offshore wind, so there's a session in there for those who want it.

Things really fizzle out after the 18th. The swell energy drops right off into the low hundreds (136) and the winds get messy. From the 19th through the 23rd, it's a lot of small, weak, or onshore conditions. There's a couple of mornings with small, clean south swells on the 22nd and 23rd, but nothing to get too excited about.

Alright, bottom line: If you can get out on the morning of Sunday the 9th or Friday the 14th of August, you’ll score the best waves of the fortnight. The rest is a matter of picking the clean morning windows.

Rusty.

Short Range Forecast

Moderate rain (total 15mm), heaviest on Mon afternoon. Warm (max 30°C on Sun morning, min 18°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Thu morning, min 18°C on Tue night). Wind will be generally light.

Sat
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
3
3
0
1
1
0
3
3
3
3
3
1
3
3
1
2
3
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
S
12
1.6
S
15
1.5
S
14
1.4
S
13
1.2
S
13
1.7
S
12
1.9
S
13
2.1
S
13
1.8
S
13
2
S
13
1.8
S
12
1.7
S
12
1.7
S
12
1.7
SSE
12
1.5
S
12
1.3
S
12
1.7
S
14
1.6
S
14
1.4
S
13
1.8
S
14
Wave Graph
Metric surfscale
Energy kJ
171
1134
906
683
448
841
1191
1514
1121
1318
964
846
869
890
660
513
1208
943
653
1335
Wind (km/h)
20
ESE
5
N
15
N
25
SW
10
SSE
15
SE
15
SSE
10
ESE
15
E
15
E
10
ENE
10
ENE
20
ESE
10
ENE
10
NNE
20
ESE
10
WSW
5
WSW
25
SW
15
WSW
Wind State
cross
off
cross-off
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-off
off
cross
cross-on
glassy
cross-on
cross-on
High Tide
11:31PM0.75m
2:13PM1.04m
00:16AM0.85m
2:45PM1.12m
1:03AM0.95m
3:05PM1.18m
1:56AM1.07m
3:23PM1.21m
2:41AM1.18m
3:41PM1.20m
3:15AM1.26m
4:01PM1.18m
Low Tide
6:56PM0.45m
6:46AM0.12m
7:51PM0.40m
7:40AM0.00m
8:36PM0.37m
8:31AM-0.09m
9:09PM0.34m
9:10AM-0.14m
9:37PM0.33m
9:44AM-0.13m
10:02PM0.34m
10:15AM-0.05m
10:26PM0.35m
part cloud
clear
clear
part cloud
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:20
6:20
6:20
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:34
5:34
5:35
5:35
5:36
5:36
 mm
3
2
3
5
2
2
Temp °C
25
26
30
23
22
21
20
19
19
19
19
21
21
20
26
25
24
24
23
22
Feels °C
25
25
27
23
24
22
20
18
19
18
19
21
20
20
27
25
27
26
23
22
  • 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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