Surf Forecasts:
Arpoador surf forecast from 27 Aug 2026:
- Best quality surf: Thursday 27 Aug, 3AM (local time) - 7ft (2.2m), 15s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 3AM (local time) - 7ft (2.2m), 15s period, SSE swell with 2,076 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 3AM (local time) - 7ft (2.2m), 15s 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 Thursday (Aug 27) at 3AM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 0.9m and 5s. 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 2.2m 15s and forecast to arrive on Thursday (Aug 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 1.2m 5s period and expected on Friday (Aug 28) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 27th Aug) | 7ft (2.2m) 15s |
| Best Surf | 3AM (Thu 27th Aug) | 7ft (2.2m) 15s |
| Most Powerful | 3AM (Thu 27th Aug) | 7ft (2.2m) 15s |
Table - best surf conditions forecast for Arpoador over the next 16 days.
The Lowdown
Alright folks, Rusty here with the outlook for Arpoador. We’ve got a bit of a mixed bag coming up over the next fortnight, but there are some definite windows of opportunity if you play your cards right.
The week kicks off on Thursday the 27th with a solid pulse of SSE swell. The morning is the standout, with a 7 ft SSE groundswell packing a serious punch at 14 seconds and a combined energy of 1797. That’s strong wave energy. The wind is a light cross-off from the east, keeping things clean. This is excellent surf, but it’s definitely one for experienced surfers only – that size and period will be powerful. The afternoon stays clean but the swell drops to 6 ft, still very good. The water temp is about average for this time of year.
Friday the 28th sees the swell drop right off. The morning has a clean 3 ft S swell with offshore NE wind – good for a longboard or a finless, but not a standout. The afternoon gets blown out a bit by a stronger cross-off wind.
Saturday the 29th and Sunday the 30th are pretty ordinary. Tiny, short-period swell and clean but weak conditions. The wind is offshore early on Saturday and glassy calm on Sunday morning, but the swell just isn’t there. The afternoon on Sunday turns onshore and messy.
Monday the 1st of September is a write-off. A messy SSW windswell comes in with onshore and cross-onshore winds. The energy is weak (284), and the period is short at 6 seconds. Forget it.
We then hit a real lull through to Friday the 5th of September. There are a few clean, small days with weak S swell, but nothing worth paddling out for. The beginning of September is looking flat and uninspiring. The real news is a gap of several days with no real surf.
Then, hold onto your boards, because Sunday the 6th of September is the true standout. The morning session will be pumping. A 6 ft SSE groundswell rolls in with a 13-second period, combined energy of 1375. The wind is a light cross-off from the east, making it clean. This is another excellent session for experienced surfers.
Monday the 7th is a bit smaller but still clean with a 3 ft S groundswell. Tuesday the 8th is a wildcard – a 6 ft E swell with a short 8-second period, but it’s glassy calm in the morning. That’s a rare look, but that short period on a beach break can be a bit crumbly.
After that, the second week peters out with small, messy conditions and onshore winds. There’s a tiny window on Friday the 11th with a clean 3 ft SSE swell, but it’s nothing special.
The best bet is simple: Thursday the 27th and Sunday the 6th of September are the only real standouts for experienced surfers. If you’re a beginner, Friday the 28th morning is your best bet for a clean, small wave.
Rusty, signing off.
Short Range ForecastHeavy rain (total 24mm), heaviest during Thu morning. Warm (max 33°C on Sat morning, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 34°C on Mon afternoon, min 21°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 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) | SSE 15 | SSE 14 | SSE 14 | SSE 13 | S 12 | SSE 12 | E 7 | ESE 7 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | SSW 6 | SSW 7 | S 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 2203 | 1797 | 1241 | 599 | 299 | 236 | 199 | 57 | 138 | 323 | 80 | 57 | 41 | 70 | 64 | 116 | 127 | 141 | 167 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | cross-off | off | off | on | cross-on | off | off | glassy | cross-on | cross-on | on |
High Tide | 1:51AM1.16m | 2:47PM1.20m | 2:33AM1.25m | 3:16PM1.24m | 3:09AM1.30m | 3:43PM1.24m | 3:41AM1.31m | 4:10PM1.19m | 4:13AM1.26m | 4:38PM1.10m | 4:50AM1.17m | 5:09PM0.98m | |||||||
Low Tide | 9:01AM-0.07m | 9:19PM0.23m | 9:31AM-0.08m | 9:44PM0.23m | 9:57AM-0.04m | 10:05PM0.26m | 10:22AM0.05m | 10:21PM0.29m | 10:45AM0.18m | 10:29PM0.32m | 11:02AM0.34m | 10:31PM0.34m | |||||||
 |  |  |  | | | | | | |  | | | | |  |  |  |  | |
 | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — |
mm | 4 | 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 52 |
Temp °C | 21 | 20 | 21 | 20 | 25 | 24 | 23 | 33 | 32 | 29 | 27 | 23 | 21 | 33 | 34 | 24 | 23 | 23 | 20 |
Feels °C | 21 | 22 | 23 | 20 | 25 | 24 | 25 | 34 | 33 | 30 | 29 | 24 | 23 | 33 | 34 | 27 | 24 | 24 | 19 |
Swell 1 Height (m) Direction Period (s) | SSE 15 | SSE 14 | SSE 14 | SSE 13 | S 12 | SSE 12 | ESE 6 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | SSW 6 | S 7 | S 7 |
| kJ | 2203 | 1797 | 1241 | 599 | 299 | 236 | 66 | 57 | 62 | 89 | 80 | 57 | 41 | 70 | 64 | 116 | 82 | 111 | 167 |
Swell 2 Height (m) Direction Period (s) | — | — | — | ESE 5 | ESE 6 | ESE 7 | S 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SW 6 | SW 6 | SW 6 | SSW 6 | SSW 8 | ESE 9 | ESE 9 | ESE 9 |
| kJ | — | — | — | 26 | 51 | 50 | 86 | 38 | 20 | 10 | 10 | 11 | 5 | 6 | 3 | 21 | 66 | 50 | 16 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 10 | SE 10 | S 10 | S 9 | — | S 10 | SSE 10 | E 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 9 | 4 | 2 | 2 | — | 9 | 32 | 58 |
Wind waves Height (m) Direction Period (s) | E 5 | E 6 | — | E 5 | E 7 | — | E 7 | NNE 2 | E 8 | E 8 | W 3 | — | — | — | — | — | SSW 6 | SSW 7 | — |
| kJ | 78 | 62 | — | 82 | 123 | — | 199 | 1 | 138 | 323 | 2 | — | — | — | — | — | 127 | 141 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 0 | 0 | 0 | 0 | 51 | 0 | 0 | 0 | 0 | 0 | 74 | 26 | 0 | 0 | 0 | 32 | 51 | 138 |
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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