Surf Forecasts:
Arpoador surf forecast from 27 Jul 2026:
- Best quality surf: Friday 31 Jul, 6PM (local time) - 3.5ft (1.1m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 12AM (local time) - 5.5ft (1.7m), 7s period, E swell with 270 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 6AM (local time) - 2.5ft (0.8m), 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 Monday (Jul 27) at 6AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.8m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Arpoador in the next 16 days are 1.7m 7s and forecast to arrive on Sunday (Aug 02) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Tuesday (Jul 28) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 27th Jul) | 2.5ft (0.8m) 12s |
| Best Surf | 6PM (Fri 31st Jul) | 3.5ft (1.1m) 10s |
| Most Powerful | 12AM (Sun 2nd Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer.
Right off the bat, the first half of this forecast is a bit of a write-off. We’re looking at a real stretch of nothing from Monday, July 27th through Thursday, July 30th. The swell is tiny, barely pushing 3ft, and the energy is weak at best. There’s a couple of glassy mornings but the waves are just too small to get excited about. It’s a tough start. We’ve got a gap of about four days where the surf is just not worth the paddle.
Things start to look a little more promising on Friday, July 31st. The morning glass-off with a 3ft S swell and 10 second period is a nice moment, but the energy is still only moderate (258). It’s surfable, but you won’t be writing home about it.
Then Saturday, August 1st, brings our first real highlight. The morning at Arpoador is clean with a light NNE offshore breeze, 3ft from the SSE. The period is short at 8 seconds, but the combined energy is a solid moderate (324). It’s a beginner-friendly size, clean, and the offshore wind will make it fun. A decent little session for the early birds.
The real standout, though, is Wednesday, August 5th. This is the one to circle on the calendar. We’ve got a 5ft S swell rolling in with an 11-second period and a strong combined energy of 623. The wind is a light NNE offshore in the morning, keeping it clean. That’s a proper groundswell for Arpoador, with enough power to push through. It’s getting up there in size, so it’s a good step up for the confident beginner. The afternoon holds at 4ft from the SSE with a clean cross-off breeze. This is the best on offer by a long shot.
The energy drops again after that, but Thursday, August 6th still has a clean 3ft morning with offshore wind and moderate energy (368). Worth a look if you missed the peak.
By Friday, August 7th, the wind turns sour with a strong SW cross-onshore and the swell jumps to 6ft with a very long 14-second period. That’s expert territory, but the wind is trash. The energy is massive (1378), but the conditions will be choppy and messy. Honestly, this setup looks more interesting for the kite crew than us paddle surfers.
The rest of the second week fades into small, weak swell with only a few clean moments. The 11th of August has a tiny 2ft clean morning, but it’s not enough to get the heart racing.
The water temp is about average for the time of year, so no surprises there.
Keep your eyes on Wednesday, August 5th. That’s the day.
Rusty.
Short Range ForecastMostly dry. Warm (max 34°C on Wed afternoon, min 17°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Thu afternoon. Warm (max 30°C on Wed night, min 19°C on Thu night). Mainly fresh winds. | ||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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) | S 12 | S 12 | S 11 | S 12 | S 12 | S 12 | S 13 | S 12 | S 12 | S 12 | S 11 | S 10 | S 10 | S 10 | S 10 | SSE 9 | SSE 8 | ESE 7 | E 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 233 | 171 | 123 | 105 | 72 | 67 | 82 | 72 | 100 | 97 | 84 | 52 | 71 | 198 | 235 | 197 | 120 | 99 | 270 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross | cross-off | off | cross-off | off | off | glassy | cross-off | cross-on | on | glassy | glassy | cross | cross-off | off | cross | off |
High Tide | 00:34AM0.93m | 1:59PM1.01m | 1:25AM1.01m | 2:41PM1.11m | 2:17AM1.12m | 3:12PM1.19m | 2:57AM1.21m | 3:41PM1.24m | 3:30AM1.27m | 4:10PM1.25m | 4:01AM1.29m | 4:41PM1.22m | |||||||
Low Tide | 8:09AM0.07m | 8:44PM0.32m | 8:51AM0.02m | 9:17PM0.30m | 9:24AM-0.01m | 9:45PM0.30m | 9:53AM-0.01m | 10:10PM0.34m | 10:20AM0.03m | 10:33PM0.39m | 10:46AM0.10m | 10:54PM0.44m | |||||||
 |  | | | | | | | | |  |  |  | | | | | | | |
 | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 1 | — | — | — | — | — |
Temp °C | 19 | 22 | 23 | 21 | 26 | 27 | 26 | 32 | 34 | 30 | 22 | 21 | 20 | 21 | 22 | 21 | 25 | 26 | 25 |
Feels °C | 20 | 22 | 23 | 21 | 27 | 27 | 27 | 31 | 34 | 28 | 22 | 20 | 21 | 22 | 23 | 21 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | SSE 8 | S 12 | E 5 | SE 8 | ESE 6 | S 12 | S 12 | S 12 | S 11 | S 10 | S 10 | S 10 | S 10 | SSE 9 | SSE 8 | SE 7 | SE 7 |
| kJ | 233 | 171 | 58 | 105 | 14 | 31 | 29 | 72 | 100 | 97 | 84 | 52 | 71 | 198 | 235 | 197 | 120 | 69 | 106 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | S 11 | SSE 8 | SSE 8 | S 12 | S 13 | E 6 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | S 4 | S 6 | S 13 | S 12 | S 12 | S 11 | S 11 |
| kJ | 78 | 56 | 123 | 44 | 41 | 67 | 82 | 22 | 14 | 8 | 8 | 10 | 10 | 22 | 56 | 75 | 99 | 90 | 58 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | ESE 5 | S 12 | ESE 6 | SE 8 | SE 8 | SE 7 | SSE 8 | SSE 7 | SE 8 | ESE 8 | S 15 | E 8 | SSE 11 | SSE 10 | SSE 8 | SSE 8 |
| kJ | 4 | 1 | 1 | 8 | 72 | 10 | 15 | 10 | 9 | 6 | 5 | 3 | 6 | 38 | 5 | 66 | 20 | 48 | 27 |
Wind waves Height (m) Direction Period (s) | — | NE 3 | E 3 | E 4 | E 6 | — | — | — | E 7 | — | — | SW 3 | — | — | — | E 7 | ESE 6 | ESE 7 | E 7 |
| kJ | — | 2 | 3 | 10 | 40 | — | — | — | 47 | — | — | 4 | — | — | — | 4 | 85 | 99 | 270 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 116 | 116 | 0 | 0 | 12 | 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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