Surf Forecasts:
Arpoador surf forecast from 2 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9AM (local time) - 5ft (1.6m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 9AM (local time) - 5ft (1.6m), 11s period, S swell with 652 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 12AM (local time) - 5ft (1.6m), 11s 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 Thursday (Sep 03) at 12AM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 0.2m and 9s. 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 1.6m 11s and forecast to arrive on Thursday (Sep 03) at 9AM. 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 Thursday (Sep 03) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 3rd Sep) | 5ft (1.6m) 11s |
| Best Surf | 9AM (Thu 3rd Sep) | 5ft (1.6m) 11s |
| Most Powerful | 9AM (Thu 3rd Sep) | 5ft (1.6m) 11s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a mixed bag coming at Arpoador, but there are a few proper windows that’ll get the blood pumping. The overall pattern shows a slow start, then a build towards some real quality, especially mid-month.
The first few days are a write-off, honestly. Wednesday the 2nd is a mess with onshore wind and poor conditions. That carries into the next morning, but check Thursday the 3rd morning – it’s the first proper standout. We’ve got 5ft of S swell rolling in with a clean 11-second period, and the wind is a light cross-offshore from the ENE. The energy is solid at 697 (moderate), and with that kind of tide-friendly, groomed surface, this is your best early call. The water temp is about average for the time of year. Arpoador is a fairly exposed beginner break, consistent, and crowds are often here, so expect company on the better days.
Friday the 4th morning has a clean 3ft from the SSE, but it’s small and ordinary. Saturday and Sunday look bleak with rain and weak, messy swell. Monday the 8th and Tuesday the 9th are marginal at best – the swell picks up a bit, but the wind is on or cross-on, chopping things up.
Now, the real gold is from Wednesday the 10th onwards. Thursday the 10th is exceptional: 3ft of S swell, but with a very long 13-second period (816 energy, moderate) and glassy offshore wind from the NNE in the morning. That’s a point-break dream – long-period groundswell will line up beautifully on the reef and points, offering well-shaped, powerful waves. The afternoon holds just as good, with 4ft at 12 seconds and light cross-offshore wind. This is your top standout of the whole run.
Friday the 11th and Saturday the 12th are clean but smaller, dropping back to around 3–4ft. Sunday the 13th gets blown out again with onshore wind and rain.
Then, Monday the 14th through Wednesday the 16th deliver. Monday afternoon has 6ft of SE swell at 8 seconds (883 energy, moderate) – strong, punchy conditions with clean cross-offshore wind. Tuesday the 15th morning is magic: 6ft from the SSE at 9 seconds (976 energy, moderate) and glassy. That’s expert-level size, over 5ft, so it’s more for the experienced crew, but the conditions will be pristine. Wednesday the 16th morning continues that with 6ft at 10 seconds and clean cross-offshore wind (816 energy). Thursday the 17th morning is a glassy 4ft with good energy – a solid finisher.
Overall, the best windows are Thursday the 10th and Tuesday the 15th morning. The swell is moderate in energy but paired with perfect wind and clean surfaces. Crowds are a given at Arpoador, especially on these days, but it’ll be worth it.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Tue night. Warm (max 28°C on Fri morning, min 17°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 39mm), heaviest during Mon morning. Warm (max 22°C on Fri night, min 16°C on Mon morning). Wind will be generally light. | ||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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) | ESE 9 | SSW 8 | S 11 | S 11 | S 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | S 9 | S 9 | S 7 | SSE 7 | S 10 | S 11 |
Wave Graph | |||||||||||||||||||
29 | 302 | 451 | 599 | 652 | 582 | 314 | 217 | 135 | 88 | 40 | 33 | 22 | 106 | 58 | 357 | 143 | 264 | 323 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-off | cross-off | cross | off | off | cross-on | cross-on | cross-off | cross | on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 5:42AM1.05m | 5:52PM0.86m | 6:56AM0.94m | 12:10PM0.66m | 6:50PM0.76m | 8:03AM0.84m | 12:34PM0.80m | 7:44PM0.69m | 1:04PM0.91m | 8:57PM0.65m | 1:40PM1.00m | 11:32PM0.75m | 2:08PM1.06m | 00:08AM0.89m | |||||
Low Tide | 10:31PM0.34m | 10:55AM0.50m | 1:04PM0.50m | 10:39PM0.37m | 10:42AM0.64m | 2:28PM0.62m | 10:56PM0.42m | 10:27AM0.76m | 5:22PM0.60m | 4:57AM0.36m | 6:07PM0.53m | 5:50AM0.20m | 6:45PM0.46m | 6:34AM0.07m | 7:23PM0.41m | ||||
— | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | |
— | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | |
mm | 23 | 2 | — | — | — | — | — | — | — | 1 | 1 | 2 | 7 | 3 | 5 | 10 | 6 | 4 | 8 |
Temp °C | 21 | 21 | 20 | 20 | 22 | 23 | 22 | 28 | 26 | 22 | 22 | 22 | 20 | 20 | 19 | 18 | 17 | 17 | 17 |
Feels °C | 22 | 20 | 18 | 20 | 21 | 22 | 22 | 29 | 26 | 24 | 22 | 22 | 21 | 21 | 18 | 16 | 17 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | S 8 | S 11 | S 11 | S 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SE 4 | S 9 | S 6 | S 7 | SSE 7 | S 10 | S 11 |
29 | 118 | 451 | 599 | 652 | 582 | 314 | 217 | 135 | 88 | 40 | 33 | 8 | 106 | 40 | 212 | 143 | 264 | 323 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | ESE 6 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 8 | SW 6 | ESE 5 | S 9 | S 13 | S 12 | SE 6 | ESE 5 |
9 | 14 | 14 | 7 | 7 | 7 | 66 | 45 | 40 | 30 | 15 | 14 | 10 | 8 | 58 | 30 | 24 | 26 | 18 | |
Swell 3 Height (m) Direction Period (s) | — | SE 9 | SE 9 | — | — | — | — | S 12 | S 11 | SW 4 | SSW 4 | SSW 5 | SSE 10 | ESE 8 | ESE 5 | ESE 8 | S 15 | — | — |
— | 3 | 3 | — | — | — | — | 3 | 2 | 2 | 2 | 4 | 22 | 13 | 10 | 6 | 4 | — | — | |
Wind waves Height (m) Direction Period (s) | SW 5 | SSW 8 | — | — | E 9 | ESE 4 | E 7 | — | — | SW 4 | — | SE 4 | — | — | ESE 8 | S 7 | SE 6 | — | — |
27 | 302 | — | — | 38 | 14 | 240 | — | — | 3 | — | 3 | — | — | 51 | 357 | 38 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 168 | 116 | 119 | 0 | 0 | 12 | 0 | 0 | 51 | 116 | 0 | 193 | 119 | 51 | 138 | 193 | 119 | 138 | 127 |
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.











