Surf Forecasts:
Arpoador surf forecast from 6 Sep 2026:
- Best quality surf: Monday 7 Sep, 9AM (local time) - 6ft (1.9m), 11s period, S swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 9AM (local time) - 6ft (1.9m), 11s period, S swell with 798 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 9AM (local time) - 6ft (1.9m), 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 Monday (Sep 07) at 9AM. The primary swell is predicted to be 1.9m and 11s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Arpoador in the next 16 days are 1.9m 11s and forecast to arrive on Monday (Sep 07) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Friday (Sep 11) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 7th Sep) | 6ft (1.9m) 11s |
| Best Surf | 9AM (Mon 7th Sep) | 6ft (1.9m) 11s |
| Most Powerful | 9AM (Mon 7th Sep) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's shaping up for Arpoador. We've got a bit of a slow start, but there's some real promise on the horizon.
The week kicks off quiet, so don't bother paddling out just yet. Sunday the 6th is a write-off with messy, onshore wind and marginal, choppy surf. It's a no-go.
But then, a shift. Monday morning, the 7th of September, things turn around. We're looking at glassy conditions with a 6.2ft south swell. The wind is a light SSE, dead offshore, keeping the waves clean. The water's sitting at a comfortable 73°, a touch warmer than average for this time of year. The combined energy is solid at 810. This is the first standout, with good shape on offer.
The good vibes carry into Tuesday the 8th. Another glassy morning with a 5.2ft south-southeast swell and clean conditions. The wind is light offshore from the north-northeast, and the combined energy is 522. It's a solid run of quality waves.
We'll see a drop-off mid-week, with the swell fading from Wednesday the 9th through the end of the week. Thursday the 10th and Friday the 11th offer some cleaner windows with offshore wind, but the swell is small, around the 3.3ft mark, so don't expect much push.
Now, fast forward to the second week. The weekend of the 19th and 20th of September looks promising. Saturday the 19th starts with a glassy morning and a long-period 3.6ft south swell rolling in at 18 seconds. That's a very long period groundswell, packing a punch. The combined energy is 903. This setup will be best for the points and reefs, as that long period can make beach breaks a bit wonky. By Sunday the 20th, the swell is up to 5.6ft, still from the south with a long 16-second period. The wind is light from the east-northeast, keeping it clean with a combined energy of 1417. This is for experienced surfers only, as it's pushing 6.5ft. This is the second standout, but it's a long-range call, so keep an eye on it.
Stay stoked.
Short Range ForecastHeavy rain (total 39mm), heaviest during Sun afternoon. Warm (max 21°C on Tue afternoon, min 16°C on Sun afternoon). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Fri night. Warm (max 26°C on Fri afternoon, min 20°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
AM | 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) | S 8 | S 7 | S 8 | S 11 | S 10 | S 10 | SSE 10 | S 11 | ESE 7 | S 10 | S 10 | S 13 | S 12 | S 13 | S 16 | S 14 | S 13 | S 12 | S 12 | S 11 | S 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 510 | 399 | 241 | 798 | 603 | 361 | 510 | 274 | 225 | 133 | 96 | 125 | 235 | 272 | 501 | 411 | 277 | 141 | 95 | 58 | 35 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | cross-off | off | glassy | cross | off | cross-on | off | off | cross | off | glassy | off | cross | off | cross | cross-off | cross-off |
High Tide | 1:40PM1.00m | 11:32PM0.75m | 2:08PM1.06m | 00:08AM0.89m | 2:22PM1.11m | 00:46AM1.02m | 2:32PM1.13m | 1:30AM1.13m | 2:47PM1.15m | 2:16AM1.21m | 3:05PM1.15m | 2:54AM1.26m | 3:24PM1.14m | ||||||||
Low Tide | 6:45PM0.46m | 6:34AM0.07m | 7:23PM0.41m | 7:19AM-0.03m | 8:03PM0.35m | 8:06AM-0.10m | 8:37PM0.29m | 8:47AM-0.13m | 9:06PM0.23m | 9:20AM-0.10m | 9:31PM0.20m | 9:49AM-0.02m | 9:54PM0.18m | ||||||||
 |  |  | | |  |  |  |  | | | |  | | | | |  | | | | |
 | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — |
 | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | 4 | 8 | 12 | 4 | 6 | 4 | 1 | — | — | 4 | 3 | — | — | 1 | — | — | 1 | 6 | 5 | — | — |
Temp °C | 19 | 17 | 17 | 16 | 16 | 16 | 19 | 21 | 21 | 20 | 21 | 22 | 24 | 23 | 23 | 24 | 26 | 22 | 23 | 27 | 26 |
Feels °C | 18 | 15 | 17 | 17 | 16 | 15 | 19 | 21 | 21 | 22 | 22 | 24 | 26 | 26 | 26 | 27 | 28 | 26 | 25 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 8 | S 11 | S 10 | S 10 | SSE 10 | S 11 | SE 7 | SE 7 | SE 7 | ESE 8 | S 12 | S 13 | S 16 | S 14 | S 13 | S 12 | S 12 | S 11 | S 5 |
| kJ | 243 | 198 | 241 | 798 | 603 | 361 | 510 | 274 | 105 | 99 | 77 | 66 | 235 | 272 | 501 | 411 | 277 | 141 | 95 | 58 | 11 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | ESE 8 | E 8 | — | SE 9 | S 18 | SE 7 | S 10 | S 10 | S 10 | S 10 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 7 | ESE 7 | ESE 7 | S 11 |
| kJ | 32 | 47 | 6 | 12 | — | 3 | 6 | 97 | 210 | 133 | 96 | 67 | 66 | 44 | 35 | 22 | 15 | 21 | 17 | 10 | 35 |
Swell 3 Height (m) Direction Period (s) | ESE 8 | ESE 8 | — | — | S 20 | S 18 | S 18 | SSE 13 | SSE 11 | S 16 | S 15 | S 13 | SE 13 | SE 14 | SE 13 | SE 13 | SE 12 | SE 12 | SE 11 | SE 11 | ESE 8 |
| kJ | 13 | 7 | — | — | 7 | 6 | 6 | 57 | 133 | 5 | 17 | 125 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 13 |
Wind waves Height (m) Direction Period (s) | S 8 | S 7 | — | — | — | — | NNE 3 | — | ESE 7 | — | — | — | — | SW 3 | — | E 3 | ESE 4 | — | — | S 3 | — |
| kJ | 510 | 399 | — | — | — | — | 1 | — | 225 | — | — | — | — | 2 | — | 3 | 3 | — | — | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 272 | 234 | 138 | 0 | 0 | 0 | 0 | 36 | 0 | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 26 | 0 | 3 | 0 | 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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