
Surf Forecasts:
Arpoador surf forecast from 10 Jul 2026:
- Best quality surf: Friday 10 Jul, 9AM (local time) - 2.5ft (0.7m), 14s period, SE swell with offshore winds.
- Most powerful swell: Monday 13 Jul, 9AM (local time) - 4.5ft (1.4m), 13s period, S swell with 673 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 6AM (local time) - 2ft (0.6m), 14s 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 Friday (Jul 10) at 6AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.7m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Arpoador in the next 16 days are 1.4m 13s and forecast to arrive on Monday (Jul 13) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Wednesday (Jul 15) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 10th Jul) | 2ft (0.6m) 14s |
| Best Surf | 9AM (Fri 10th Jul) | 2.5ft (0.7m) 14s |
| Most Powerful | 9AM (Mon 13th Jul) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
Alright, let’s break it down. Friday morning (10 July) is a slow roll at Arpador. It’s small, only 2 ft from the SE, but the swell’s got a long 14-second interval, so it’s real groundswell energy. Wind is light offshore from the N, so the surface is clean. The combined energy is moderate at 294. Water temp is about normal for this time of year. Good for a beginner to get wet.
Saturday morning (11 July) is the real deal. Swell bumps up to 4 ft from the SE, still with a 13-second period, and the wind goes glassy from the N. That’s about as clean as it gets. The energy jumps to 404 (moderate). Arpador is fairly exposed to the SE, so it’ll be working. Crowds are often here, so expect company, but it’s worth it.
Sunday afternoon (12 July) has a quick glassy window with a 3 ft SSE swell, but the morning is blown out with strong onshore wind. The rest of the first week is hit or miss. Monday (13 July) sees a size jump to 5 ft–6 ft from the S, but it’s onshore wind and the period drops to 9 seconds, so it’s messy. The energy is very strong (1419 and 1091), but the quality is poor.
The standout is Saturday morning (11 July). Glassy, 4 ft clean SE groundswell, perfect for a beginner-friendly session. That’s your best bet. The second week is mostly small and clean but ordinary. Sunday 19 July afternoon has a little bump at 4 ft from the E with clean cross-off wind, but the period is short at 8 seconds. There’s a long stretch of mediocre, small waves from around 15 July through to the 22nd, with only a few clean but tiny days. The last few days (24–25 July) bring a longer-period S swell (11–12 seconds) but only 3 ft, so it’s more of a longboard cruise.
Bottom line: Saturday morning (11 July) is your window. The rest is small and average, with a few clean but not exciting sessions.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 17°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the WSW by Sun morning). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Mon night. Warm (max 22°C on Wed afternoon, min 16°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thu 16 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 10 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 12 | S 12 | S 13 | S 9 | S 10 | S 9 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SE 9 | SE 9 | ESE 8 |
Wave Graph | |||||||||||||||||||||
130 | 203 | 253 | 336 | 388 | 326 | 297 | 216 | 180 | 141 | 673 | 553 | 327 | 281 | 335 | 283 | 253 | 217 | 287 | 203 | 202 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross | glassy | glassy | cross | off | cross-on | glassy | cross-on | on | on | on | on | on | off | off | cross | off | off | cross |
High Tide | 10:45PM0.82m | 11:48AM0.99m | 11:40PM0.84m | 12:50PM1.05m | 00:23AM0.87m | 2:24PM1.12m | 1:13AM0.92m | 3:10PM1.20m | 2:12AM1.01m | 3:40PM1.23m | 2:57AM1.10m | 4:07PM1.23m | 3:32AM1.19m | 4:34PM1.19m | |||||||
Low Tide | 6:05AM0.29m | 6:55PM0.40m | 6:53AM0.17m | 8:02PM0.38m | 7:52AM0.07m | 8:55PM0.37m | 8:45AM-0.02m | 9:32PM0.37m | 9:26AM-0.08m | 10:03PM0.41m | 10:02AM-0.07m | 10:34PM0.47m | 10:39AM-0.01m | ||||||||
— | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | |
— | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | |
mm | — | — | — | — | — | — | — | — | — | 3 | 1 | — | 5 | — | — | — | — | — | — | — | — |
Temp °C | 18 | 23 | 23 | 21 | 23 | 23 | 22 | 22 | 23 | 20 | 20 | 20 | 19 | 20 | 20 | 19 | 21 | 22 | 20 | 23 | 24 |
Feels °C | 18 | 24 | 23 | 23 | 24 | 22 | 22 | 19 | 24 | 19 | 18 | 18 | 18 | 18 | 19 | 18 | 20 | 21 | 19 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 10 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 12 | S 6 | S 13 | S 10 | S 10 | S 9 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SE 9 | SE 9 | SE 9 |
130 | 203 | 253 | 336 | 388 | 326 | 297 | 216 | 180 | 51 | 673 | 417 | 327 | 281 | 335 | 283 | 253 | 217 | 287 | 203 | 199 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 9 | S 9 | S 8 | SSW 8 | SSE 16 | SSW 7 | E 4 | SSW 4 | S 12 | SE 11 | S 16 | S 15 | S 14 | S 13 | SW 8 | S 13 | S 16 | S 15 | S 13 | S 13 |
51 | 85 | 56 | 32 | 12 | 26 | 5 | 1 | 7 | 141 | 43 | 79 | 39 | 57 | 54 | 32 | 13 | 5 | 17 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | SE 14 | S 18 | S 13 | S 16 | S 15 | SSW 7 | S 18 | S 22 | S 20 | SE 11 | SE 11 | SE 11 | SE 11 | S 14 | S 13 | S 12 | S 12 | S 11 | S 11 | S 13 | S 16 |
51 | 6 | 3 | 5 | 4 | 5 | 24 | 36 | 127 | 79 | 59 | 42 | 18 | 58 | 55 | 47 | 26 | 23 | 2 | 14 | 5 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ENE 4 | — | — | — | S 10 | S 9 | — | — | — | — | NE 3 | — | E 7 | — | ESE 8 |
— | — | — | — | — | — | 7 | — | — | — | 644 | 553 | — | — | — | — | 5 | — | 219 | — | 202 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 51 | 0 | 0 | 36 | 0 | 138 | 0 | 186 | 116 | 116 | 116 | 116 | 119 | 0 | 0 | 12 | 0 | 0 | 12 |
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.











