Surf Forecasts:
Arpoador surf forecast from 7 Aug 2026:
- Best quality surf: Thursday 13 Aug, 9PM (local time) - 5.5ft (1.7m), 15s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 12AM (local time) - 7ft (2.2m), 14s period, S swell with 1,984 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 9PM (local time) - 3.5ft (1.1m), 12s 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 Saturday (Aug 08) at 9PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.8m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Arpoador in the next 16 days are 2.2m 14s and forecast to arrive on Tuesday (Aug 11) at 12AM. 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 Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 8th Aug) | 3.5ft (1.1m) 12s |
| Best Surf | 9PM (Thu 13th Aug) | 5.5ft (1.7m) 15s |
| Most Powerful | 12AM (Tue 11th Aug) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about Arpoador.
Alright, it’s a bit of a slow start. We’ve got some small, choppy, and messy conditions through the first few days. Friday and Saturday are essentially a write-off. Sunday the 9th morning shows a bit of a pulse with a 5ft south swell, nice 14-second period, and clean cross-offshore wind from the NNW – that’s a good sign but the surface is still marginal. The combined swell energy is moderate (926). The water is a touch warmer than normal for this time of year at 73.6°F.
Now, the real action starts to build from Monday the 11th. Tuesday morning the 11th through to Wednesday morning the 12th is looking very promising. We’ve got a solid 6ft to 6.5ft south swell, with a 12 to 13-second period, and clean cross-offshore winds from the east. The combined energy is strong (1232 to 1239). This is a good, powerful groundswell for Arpoador, and while it’s a fairly exposed spot, the clean conditions will make it shine. This is one of the best runs on offer.
The standout moment, however, has to be Friday the 21st morning. The guidance shows a clean 7.2ft south swell with a 12-second period, cross-offshore wind from the NE, and the combined energy is very strong (1552). This is big, powerful, and clean. At over 6.5ft, this is for experienced surfers only. The setup is excellent for them.
The swell tapers off through the 22nd, with a smaller, glassy 5.2ft south swell on Saturday morning, still offering good, clean waves.
The rest of the 16-day window has some marginal windows, but the consistent clean conditions on the 11th, 12th, 21st, and 22nd mornings are the true highlights. The wind is the key here, and it looks like it will play ball during those windows.
Short Range ForecastLight rain (total 3mm), mostly falling on Sun night. Warm (max 31°C on Sun morning, min 21°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Mon afternoon. Warm (max 23°C on Thu morning, min 18°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
PM | 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) | SSE 11 | SSE 10 | S 10 | S 11 | S 15 | S 14 | S 13 | S 12 | S 12 | S 13 | S 14 | S 13 | S 12 | S 13 | S 12 | S 13 | SSE 12 | S 12 | S 12 | S 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 41 | 36 | 17 | 166 | 1149 | 906 | 683 | 371 | 792 | 1021 | 1984 | 1228 | 1238 | 1012 | 855 | 1245 | 1042 | 683 | 417 | 1447 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | glassy | cross-off | cross-on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 9:47PM0.69m | 12:28PM0.95m | 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 | ||||||||
Low Tide | 6:05PM0.49m | 5:58AM0.25m | 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 | |||||||
 |  |  | |  | |  |  |  | |  | | |  | | | | | | | |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — |
 | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — |
mm | — | — | — | — | — | — | — | 1 | 2 | 3 | 4 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 24 | 24 | 26 | 31 | 23 | 22 | 21 | 20 | 19 | 19 | 19 | 19 | 21 | 20 | 19 | 23 | 23 | 22 |
Feels °C | 25 | 26 | 25 | 24 | 24 | 29 | 22 | 24 | 23 | 20 | 18 | 18 | 18 | 18 | 20 | 18 | 17 | 23 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SE 7 | SE 4 | S 11 | S 15 | S 14 | S 13 | S 12 | S 12 | S 13 | S 14 | S 13 | S 12 | S 13 | S 12 | S 13 | SSE 12 | S 12 | S 12 | S 15 |
| kJ | 41 | 19 | 5 | 166 | 1149 | 906 | 683 | 371 | 792 | 1021 | 1984 | 1228 | 1238 | 1012 | 855 | 1245 | 1042 | 683 | 396 | 1447 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | SSE 10 | S 10 | ESE 7 | ESE 5 | E 6 | ESE 8 | S 5 | E 8 | ESE 8 | E 8 | E 7 | E 7 | E 7 | E 7 | — | — | SSE 16 | S 14 | ESE 6 |
| kJ | 11 | 36 | 17 | 5 | 13 | 20 | 26 | 15 | 12 | 6 | 1 | 4 | 1 | 1 | 1 | — | — | 52 | 417 | 52 |
Swell 3 Height (m) Direction Period (s) | WSW 3 | E 11 | ESE 7 | SW 6 | SE 8 | — | — | ESE 8 | ENE 8 | SE 12 | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 3 | 5 | 1 | 2 | — | — | 13 | 22 | 6 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | — | SE 3 | — | — | — | — | — | — | SE 6 | — | — | — | — | E 7 | E 5 | E 5 | ESE 5 | — |
| kJ | — | 4 | — | 3 | — | — | — | — | — | — | 72 | — | — | — | — | 4 | 57 | 30 | 15 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 26 | 26 | 61 | 169 | 0 | 3 | 119 | 167 | 193 | 691 | 138 | 0 | 0 | 0 | 0 | 51 | 0 | 0 | 97 | 0 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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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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