Surf Forecasts:
Arpoador surf forecast from 23 Jul 2026:
- Best quality surf: Sunday 26 Jul, 9AM (local time) - 2.5ft (0.7m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 3AM (local time) - 3.5ft (1.1m), 12s period, S swell with 353 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 12AM (local time) - 1.5ft (0.5m), 8s 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 Thursday (Jul 23) at 12AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.3m and 4s. Another secondary swell of 0.5m and 4s is also forecast. 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 1.1m 12s and forecast to arrive on Monday (Jul 27) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Monday (Jul 27) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 23rd Jul) | 1.5ft (0.5m) 8s |
| Best Surf | 9AM (Sun 26th Jul) | 2.5ft (0.7m) 14s |
| Most Powerful | 3AM (Mon 27th Jul) | 3.5ft (1.1m) 12s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the breakdown for Arpoador in feet and miles per hour.
The first week and a half is pretty flat and messy. From Wednesday the 22nd through to Friday the 31st of July, it’s mostly a bust for any decent paddle surfing. The swell is tiny, often 1ft to 3ft, with short periods, so the waves are weak and lack any power. The combined swell energy is low, mostly under 200. There are a few clean windows, like Wednesday morning the 22nd with a light NW breeze, but the swell is just too small to get excited about.
The water temperature at Arpoador is 72°, which is about normal for this time of year.
The first real chance comes on Sunday the 26th of July. The morning shows a cleaner, longer period swell. The height is only 2ft, but it’s from the S with a 14-second period, bringing a combined energy of 314 (moderate). The wind is light and cross-offshore from the NNW, so it should be clean. Get it early, because the afternoon gets choppy again.
Monday the 27th and Tuesday the 28th have clean, offshore winds with waves around 2ft to 3ft. These are surfable but just average.
Then there’s a big flat spell from Wednesday the 29th to Friday the 31st. The swell drops to almost nothing.
The standout is Saturday the 1st of August. The swell picks up to 5ft from the E, with a short period of 7 seconds, but the wind is offshore from the N in the morning and NE in the afternoon. This makes for clean, glassy conditions. The combined energy is strong, hitting 291 in the morning and 340 in the afternoon. For Arpoador, 5ft is a good size, but it’s not too big for most. Crowds are often an issue, and with the first decent swell in a while, expect plenty of company. This is the best day.
Sunday the 2nd of August turns messy again.
In the second week, Tuesday the 4th of August afternoon has a 2ft swell from the S with a 13-second period and a clean cross-off wind, but it’s described as marginal. Wednesday the 5th of August afternoon shows a jump in energy to 590 with a 4ft ESE swell, but the wind is cross-shore.
The most promising long-range call is Thursday the 6th of August. The morning shows 6ft from the E, with a clean cross-off wind from the NE. The combined energy is 555 (strong). That’s a solid size, and at 6ft, it’s getting into the range where beginners might want to sit it out. The short 8-second period means it’s a wind swell, but the clean wind will help. This one is promising but over a week away.
Bottom line: Saturday the 1st of August is your best bet, with Thursday the 6th of August as a potential second option. The rest is a lot of waiting.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Fri night. Warm (max 31°C on Wed afternoon, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sat afternoon. Warm (max 30°C on Tue morning, min 19°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | ||||||||||||||
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) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | S 10 | S 9 | S 9 | S 10 | S 9 | S 14 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 35 | 37 | 35 | 24 | 12 | 11 | 18 | 76 | 95 | 179 | 173 | 203 | 225 | 236 | 175 | 134 | 109 | 105 | 71 | 44 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-on | cross-on | glassy | glassy | on | glassy | cross-on | on | cross-on | cross-off | cross-on | cross-off | off | cross-off | off | off | cross | cross-off |
High Tide | 8:08PM0.83m | 9:12AM0.80m | 9:04PM0.77m | 11:34AM0.82m | 10:54PM0.77m | 12:16PM0.87m | 11:49PM0.84m | 1:00PM0.94m | 00:34AM0.93m | 1:59PM1.01m | 1:25AM1.01m | 2:41PM1.11m | 2:17AM1.12m | |||||||
Low Tide | 4:37PM0.59m | 4:53AM0.42m | 5:40PM0.55m | 5:45AM0.31m | 6:23PM0.49m | 6:28AM0.21m | 7:10PM0.43m | 7:16AM0.14m | 8:02PM0.37m | 8:09AM0.07m | 8:44PM0.32m | 8:51AM0.02m | 9:17PM0.30m | |||||||
 |  | | | |  |  |  |  |  |  | | | | | | | | | | |
 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — |
 | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:29 | — |
mm | — | — | — | — | — | — | — | 7 | 1 | 3 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 20 | 23 | 22 | 22 | 22 | 22 | 19 | 22 | 21 | 21 | 21 | 21 | 20 | 23 | 24 | 23 | 30 | 30 | 26 |
Feels °C | 30 | 20 | 26 | 22 | 24 | 23 | 23 | 22 | 23 | 22 | 22 | 22 | 22 | 20 | 24 | 24 | 25 | 31 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | S 9 | S 9 | S 10 | S 9 | SSE 9 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | E 7 |
| kJ | 35 | 37 | 35 | 24 | 12 | 11 | 11 | 76 | 95 | 179 | 173 | 106 | 225 | 236 | 175 | 134 | 109 | 105 | 71 | 22 |
Swell 2 Height (m) Direction Period (s) | S 10 | SW 4 | S 8 | S 8 | SSW 4 | S 8 | S 8 | SE 8 | ESE 8 | ESE 7 | S 14 | S 14 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | E 6 | SE 8 | S 12 |
| kJ | 8 | 3 | 12 | 12 | 2 | 5 | 12 | 15 | 11 | 11 | 33 | 203 | 84 | 61 | 37 | 37 | 39 | 21 | 31 | 44 |
Swell 3 Height (m) Direction Period (s) | S 15 | S 9 | SW 5 | SW 4 | S 8 | S 11 | S 10 | S 3 | E 8 | — | ESE 7 | ESE 7 | E 7 | E 7 | ESE 4 | ESE 4 | ESE 5 | SE 8 | ESE 6 | SE 8 |
| kJ | 4 | 15 | 1 | 1 | 5 | 9 | 18 | 2 | 28 | — | 10 | 5 | 4 | 4 | 3 | 4 | 16 | 33 | 13 | 17 |
Wind waves Height (m) Direction Period (s) | — | WSW 4 | WSW 5 | — | — | — | SSW 3 | NNE 2 | — | — | — | — | — | E 3 | E 4 | ESE 7 | — | — | E 7 | — |
| kJ | — | 11 | 9 | — | — | — | 1 | 1 | — | — | — | — | — | 11 | 13 | 16 | — | — | 58 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 6 | 0 | 3 | 138 | 26 | 119 | 119 | 0 | 32 | 116 | 3 | 0 | 51 | 0 | 0 | 0 | 0 | 0 | 12 | 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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