
Surf Forecasts:
Arpoador surf forecast from 3 Aug 2026:
- Best quality surf: Sunday 9 Aug, 3PM (local time) - 5ft (1.5m), 16s period, S swell with offshore winds.
- Most powerful swell: Sunday 9 Aug, 6PM (local time) - 5ft (1.6m), 15s period, S swell with 1,134 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 6AM (local time) - 2.5ft (0.8m), 7s period with ESE 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 (Aug 03) at 6AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Arpoador in the next 16 days are 1.6m 15s and forecast to arrive on Sunday (Aug 09) at 6PM. 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 5s period and expected on Tuesday (Aug 04) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 3rd Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 3PM (Sun 9th Aug) | 5ft (1.5m) 16s |
| Most Powerful | 6PM (Sun 9th Aug) | 5ft (1.6m) 15s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s have a look at what’s on the menu for Arpoador over the next couple of weeks.
Right off the bat, we’ve got a bit of a slow cooker situation. The first few days are pretty ordinary—small, short-period swell and nothing to get excited about. Monday the 3rd starts with a tiny 2ft swell from the ESE, period a weak 7 seconds, and only 55 units of combined energy. It’s glassy in the morning, which is nice, but there’s just not enough push. That afternoon gets messy with a cross-on wind. Honestly, you’re better off waiting.
Tuesday the 4th morning sees a little bump in energy to 107 units, but still only 2ft and 7 seconds. The wind is offshore from the NNE though, so it’s clean. If you’re a beginner and just want to get wet, it’s okay. But not a standout.
Wednesday the 5th morning is the first real hint of something better. The swell jumps to 3ft from the S, period 12 seconds, and energy hits 254 units. With clean offshore wind from the north, it’s surfable but still not firing. That afternoon the energy climbs to 343 units but the wind swings cross-shore and it gets a bit choppy.
Thursday the 6th and Friday the 7th are still small, with energy dropping back under 100 units. Clean conditions, but tiny waves. You’re not missing much.
Now, here’s where it gets interesting. Sunday the 9th afternoon is the first true standout. The swell comes in at 5ft from the S, with a very long period of 16 seconds, and the combined energy rockets to 1159 units. That’s a lot of power. The wind is offshore from the north, so it’s clean. This is a proper groundswell hitting Arpoador, and it’s going to be wave for the experienced surfers. The long period will make for some nice lines, but at 5ft, it’s not too big for a confident intermediate either. This is the best session of the first week, no question.
The next few days get messy. Monday the 10th and Tuesday the 11th see onshore winds and rain, with the swell getting bigger but blown out. The energy on Tuesday afternoon hits 1663 units with 7ft from the SSW, but it’s onshore and ugly. That’s more of a kite surfing setup than a paddle session.
Wednesday the 12th is a bit of a mixed bag. The morning is still cross-onshore, but the afternoon shows some promise: 7ft from the S, period 12 seconds, energy 1578 units, with only a light cross-shore wind. The conditions are marginal, but for a big-wave charger, it’s worth a look.
Then we get a clean-up. Thursday the 13th morning is a solid option: 5ft from the S, period 11 seconds, energy 529 units, with offshore wind from the NNE. It’s clean and rideable. That afternoon goes glassy with 5ft, but still good.
The real gem, though, is way out there. Monday the 17th morning is the best on offer in the whole forecast. The swell is 8ft from the SE, period 9 seconds, energy 1514 units, and the wind is offshore from the NNE. It’s clean, powerful, and solid. This is a big day for experienced surfers only—over 8ft is expert territory, and 8ft is pushing it for beginners. The short period (9 seconds) means it’ll be a bit more walled up, but Arpoador can handle it. This is the one to circle on the calendar. Just keep in mind it’s over a week away, so the forecast might shift a little.
Tuesday the 18th morning is also decent: 7ft from the SE, period 10 seconds, energy 908 units, with glassy conditions. Another good option for the experienced crew.
Overall, the water temperature is about average for this time of year, nothing unusual to report.
So, to sum it up: the first week is mostly small and ordinary, with Sunday the 9th afternoon being the clear standout. After a messy middle, the second week shapes up with Monday the 17th morning as the true big-wave highlight. If you’re an expert, that’s your session. If you’re a beginner, stick to the tiny clean mornings early on. Arpoador can get crowded, especially on the good days, so expect company.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Warm (max 29°C on Wed morning, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 38°C on Fri afternoon, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 7 | ESE 7 | SE 12 | E 7 | ESE 7 | SE 9 | E 7 | S 12 | S 11 | ESE 8 | S 10 | E 7 | SSE 13 | SSE 12 | SSE 11 | SSE 10 | E 8 | ESE 8 | ESE 8 |
Wave Graph | |||||||||||||||||||
66 | 38 | 37 | 103 | 46 | 55 | 178 | 180 | 154 | 107 | 51 | 87 | 35 | 49 | 43 | 37 | 29 | 19 | 51 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-on | glassy | off | cross | off | off | cross | off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off |
High Tide | 5:14AM1.19m | 6:03PM1.06m | 6:11AM1.09m | 6:51PM0.96m | 7:13AM1.00m | 7:33PM0.85m | 8:11AM0.91m | 8:18PM0.76m | 11:05AM0.85m | 9:47PM0.69m | 12:28PM0.95m | 11:31PM0.75m | |||||||
Low Tide | 11:12PM0.48m | 12:13PM0.30m | 11:26PM0.50m | 1:17PM0.40m | 1:17AM0.50m | 2:13PM0.52m | 2:03AM0.49m | 5:05PM0.55m | 5:06AM0.40m | 6:05PM0.49m | 5:58AM0.25m | 6:56PM0.45m | |||||||
— | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 23 | 21 | 25 | 26 | 24 | 29 | 27 | 27 | 32 | 29 | 25 | 35 | 38 | 32 | 38 | 33 | 31 |
Feels °C | 25 | 22 | 22 | 22 | 24 | 25 | 25 | 29 | 26 | 28 | 32 | 28 | 25 | 32 | 35 | 29 | 34 | 34 | 29 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | SE 9 | ESE 7 | ESE 8 | S 11 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 8 | ESE 7 | E 8 | ESE 8 | ESE 8 |
66 | 38 | 24 | 34 | 46 | 52 | 50 | 74 | 154 | 107 | 43 | 30 | 30 | 31 | 29 | 30 | 29 | 19 | 51 | |
Swell 2 Height (m) Direction Period (s) | S 10 | SSE 13 | SE 12 | SE 11 | SE 11 | ESE 6 | S 12 | S 12 | ESE 8 | S 11 | S 10 | S 10 | SSE 9 | SSE 12 | SSE 11 | SSE 10 | S 10 | S 9 | S 9 |
7 | 16 | 37 | 32 | 29 | 12 | 110 | 180 | 51 | 83 | 51 | 50 | 28 | 49 | 43 | 37 | 17 | 16 | 15 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | S 9 | S 8 | S 15 | S 13 | S 13 | SE 9 | — | — | — | S 16 | SSE 15 | SSE 13 | S 9 | SSW 10 | — | — | WNW 2 | — |
3 | 1 | 1 | 4 | 32 | 55 | 22 | — | — | — | 5 | 22 | 35 | 14 | 19 | — | — | 1 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | E 7 | E 6 | ESE 8 | E 7 | — | E 8 | — | — | E 7 | — | — | — | — | — | NW 2 | — |
— | — | — | 103 | 49 | 49 | 178 | — | 138 | — | — | 87 | — | — | — | — | — | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 0 | 107 | 0 | 0 | 36 | 0 | 0 | 12 | 0 | 0 | 36 | 0 | 0 | 0 | 0 | 6 | 6 | 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.











