Surf Forecasts:
Arpoador surf forecast from 21 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 9PM (local time) - 5ft (1.5m), 8s period, E swell with offshore winds.
- Most powerful swell: Monday 27 Jul, 6AM (local time) - 4ft (1.2m), 12s period, S swell with 400 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 6PM (local time) - 3.5ft (1.1m), 8s period with E 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 Tuesday (Jul 21) at 6PM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.7m and 8s. Another secondary swell of 0.1m and 11s 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 1.2m 12s and forecast to arrive on Monday (Jul 27) at 6AM. 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 3s period and expected on Tuesday (Jul 28) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 21st Jul) | 3.5ft (1.1m) 8s |
| Best Surf | 9PM (Tue 21st Jul) | 5ft (1.5m) 8s |
| Most Powerful | 6AM (Mon 27th Jul) | 4ft (1.2m) 12s |
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 headed our way for Arpoador.
Honestly, the next week and a half is pretty flat and quiet. The water temp is sitting at 71°, which is about average for this time of year, so nothing wild there. We’ve got a few small windows of clean, surfable waves, but nothing that’ll get your heart racing until we get into the first weekend of August.
The first real chance comes on Saturday morning, 25 July. It’s a small one, but it’s clean. A light NE offshore breeze will groom 4 ft of swell coming from the south, with a period of 10 seconds. The combined energy sits at 252 (moderate), so there’s a little push, but it’s not a standout day. The Saturday afternoon, though, is a bit better – 4 ft from the SSE with a clean NNE offshore wind. That’s glassy, and the energy jumps to 293 (moderate). For a beginner spot like Arpoador, that’s about as good as it gets this week. The crowd factor is “often” here, so expect a few others out.
The next real highlight is Monday morning, 27 July. Glassy conditions with a light northerly breeze, 4 ft of swell from the south, and a 12-second period. That’s a groundswell with good energy in the water (451 – moderate to strong). The longer period will make for some nice, well-shaped waves, but it can also mean longer waits between sets. It’s a solid option for the more experienced beginner or intermediate.
Then we go dry again until Sunday, 2 August. That morning offers a clean 4 ft of SE swell with an 8-second period, pushed by a light NNE offshore. The energy is 321 (moderate). It’s a fun, small-wave day for the patient surfer.
Everything else is either too small, too windy, or too messy to bother with. There are big gaps of flat, poor conditions from the 29th of July right through the 1st of August. The only other thing to note is the Saturday, 1 August afternoon, where the swell jumps to 6 ft from the SE, but it’s choppy and cross-onshore at 12 mph. That’s a kite-surfing setup, not a paddle-surfing one.
The best of the lot is Monday morning, 27 July – clean, glassy, and a proper groundswell. Get out there if you can.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Wed morning, min 20°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Fri night. Warm (max 27°C on Sat afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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) | ESE 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SW 5 | S 11 | S 10 | S 10 | S 10 | SSE 10 | SSE 9 | S 14 | S 14 | S 13 | S 12 | S 12 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 64 | 141 | 95 | 69 | 48 | 51 | 35 | 24 | 21 | 62 | 296 | 279 | 231 | 288 | 232 | 206 | 232 | 206 | 393 | 273 | 145 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on | on | cross-on | glassy | on | cross-off | off | off | cross-on | cross-on | cross-on | cross | glassy | cross-on | cross-off |
High Tide | 7:31PM0.89m | 8:04AM0.90m | 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 | ||||||||
Low Tide | 2:27PM0.54m | 2:38AM0.50m | 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 | ||||||||
 | |  | | | |  | |  | | |  |  | | | | | | | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:28 | — | — |
 | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 28 | 2 | — | — | 1 | — | — | — | — | — |
Temp °C | 28 | 28 | 25 | 30 | 30 | 27 | 23 | 22 | 21 | 22 | 21 | 19 | 23 | 27 | 22 | 21 | 21 | 19 | 20 | 20 | 19 |
Feels °C | 27 | 27 | 24 | 29 | 29 | 27 | 23 | 23 | 23 | 23 | 21 | 21 | 25 | 28 | 24 | 22 | 19 | 18 | 20 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | S 7 | S 10 | S 10 | S 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 12 | S 12 | S 12 |
| kJ | 64 | 45 | 95 | 69 | 48 | 51 | 35 | 24 | 12 | 24 | 296 | 279 | 231 | 288 | 232 | 146 | 151 | 151 | 393 | 273 | 145 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | S 11 | S 10 | S 10 | S 9 | S 8 | S 8 | SW 5 | S 11 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | S 16 | S 14 | S 14 | S 13 | SE 8 | SSE 9 | SSE 9 |
| kJ | 11 | 2 | 2 | 8 | 8 | 6 | 6 | 12 | 3 | 62 | 12 | 11 | 11 | 5 | 45 | 206 | 232 | 206 | 57 | 53 | 49 |
Swell 3 Height (m) Direction Period (s) | — | — | S 13 | — | S 15 | S 13 | S 12 | S 12 | SSE 4 | ESE 8 | — | — | SSW 10 | — | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | SE 9 | S 7 |
| kJ | — | — | 4 | — | 4 | 4 | 3 | 3 | 3 | 11 | — | — | 10 | — | 5 | 9 | 9 | 4 | 1 | 64 | 23 |
Wind waves Height (m) Direction Period (s) | — | E 8 | — | — | — | — | WNW 3 | SW 4 | SW 5 | — | — | — | — | — | — | — | — | SSW 5 | — | — | E 3 |
| kJ | — | 141 | — | — | — | — | 2 | 9 | 21 | — | — | — | — | — | — | — | — | 37 | — | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 32 | 691 | 32 | 0 | 116 | 0 | 0 | 0 | 26 | 32 | 193 | 3 | 0 | 51 | 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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