Surf Forecasts:
Coral Um surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 9PM (local time) - 3ft (0.9m), 13s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 6PM (local time) - 6.5ft (2.0m), 15s period, S swell with 1,763 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 9PM (local time) - 3ft (0.9m), 13s period with SE swell.
Best Forecast Surf Conditions for Coral Um this week:
The surf forecast for Coral Um over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 9PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.8m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coral Um in the next 16 days are 2.0m 15s and forecast to arrive on Tuesday (Aug 11) at 6PM. Winds are predicted to be cross-onshore 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 14) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 12th Aug) | 3ft (0.9m) 13s |
| Best Surf | 9PM (Wed 12th Aug) | 3ft (0.9m) 13s |
| Most Powerful | 6PM (Tue 11th Aug) | 6.5ft (2.0m) 15s |
Table - best surf conditions forecast for Coral Um over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at what’s on offer for Coral Um. Honestly, it’s a tough stretch ahead. The water temp is sitting around 74°, which is spot on normal for this time of year, so no surprises there.
The 16-day window starts with a real quiet spell. Tuesday through to Friday of the first week is pretty much a write-off – small, weak, messy conditions with cross-onshore winds and low energy. The swell is tiny, mostly under 3 ft, with short periods and no real push. You’re looking at combined energy readings around 250-300 (moderate energy) but it’s all wind-affected and not surfable.
Then Saturday morning, 15th August, things finally flick a switch. We get a cross-offshore breeze from the north, light winds, and a clean 3 ft SSE swell with a 14-second period. The combined energy jumps to 508 (strong energy). This is the standout – clean, lined-up, and the swell direction is a solid SSE. That’s a good call for a reef break like Coral Um. It’s a fairly consistent spot, but it can be a bit inconsistent, so when it’s on, it’s worth being there. Crowds are possible – sometimes busy – but with the quality on offer, it’s a proper session.
Sunday morning the 16th is also worth a look – smaller at 2 ft from the east, but still clean with a light cross-off breeze. Energy drops to 279 (moderate), but for a quick paddle, it’s tidy.
After that, the second week gets choppy and inconsistent. Monday the 17th has a brief clean window with a 4 ft ESE swell but the period is short at 8 seconds – it’s surfable but ordinary. Later in the week, the swell drops right off, and by the 21st onward, we’re into tiny, weak energy readings (13, 68, 97) with strong winds. The 25th has a glassy morning but only 0.3 ft swell – basically flat.
So, bottom line: this is a one-weekend show. The best waves are on Saturday morning, 15th August, and Sunday morning, 16th August. After that, it’s a long dry spell. Get in the water when it’s clean, because the rest of the forecast is a poor man’s paddle.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Tue morning. Warm (max 26°C on Thu morning, min 18°C on Wed night). Winds decreasing (fresh winds from the NE on Thu afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | SSE 14 | SE 14 | SSE 14 | SSE 13 | SSE 12 | SE 13 | SSE 13 | SSE 12 | SSE 15 | SSE 14 | SSE 13 | SSE 16 | SSE 14 | SSE 14 | SSE 13 | E 12 | E 12 | SE 7 | ESE 8 | ESE 8 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 250 | 203 | 379 | 212 | 187 | 245 | 222 | 273 | 372 | 243 | 225 | 377 | 419 | 318 | 295 | 106 | 71 | 64 | 128 | 155 | 200 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | on | cross-off | cross-off | cross | cross-off | cross-on | on | glassy | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 2:25PM1.45m | 2:42AM1.46m | 3:08PM1.49m | 3:26AM1.51m | 3:49PM1.49m | 4:09AM1.53m | 4:29PM1.47m | 4:51AM1.51m | 5:07PM1.42m | 5:30AM1.45m | 5:42PM1.35m | 6:09AM1.36m | 6:17PM1.26m | ||||||||
Low Tide | 8:33PM0.10m | 8:54AM-0.00m | 9:16PM0.03m | 9:38AM-0.02m | 9:57PM-0.00m | 10:20AM0.00m | 10:36PM0.01m | 11:00AM0.06m | 11:15PM0.05m | 11:38AM0.16m | 11:52PM0.12m | 12:15PM0.27m | 00:28AM0.22m | ||||||||
 | |  |  |  |  |  | |  | | | |  | | | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — |
 | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — |
mm | 2 | 2 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 20 | 21 | 20 | 26 | 26 | 23 | 23 | 23 | 22 | 25 | 24 | 24 | 26 | 25 | 23 | 25 | 24 | 22 |
Feels °C | 18 | 18 | 19 | 21 | 20 | 20 | 25 | 24 | 22 | 25 | 25 | 25 | 25 | 22 | 26 | 24 | 22 | 23 | 24 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SE 14 | SE 6 | SE 6 | SSE 12 | SE 13 | SSE 13 | SSE 12 | SSE 15 | SSE 14 | SSE 13 | SSE 16 | SSE 14 | SSE 14 | SSE 13 | SE 8 | SE 7 | SE 7 | ESE 8 | ESE 8 | E 7 |
| kJ | 250 | 203 | 86 | 58 | 187 | 245 | 222 | 273 | 372 | 243 | 225 | 377 | 419 | 318 | 295 | 71 | 65 | 64 | 128 | 155 | 200 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | SSE 14 | SSE 13 | SE 6 | SE 7 | SE 7 | E 8 | E 8 | ENE 5 | E 9 | E 9 | E 11 | E 12 | E 13 | E 12 | E 12 | ENE 4 | SSE 11 | SE 11 | SSE 11 |
| kJ | 9 | 15 | 379 | 212 | 42 | 51 | 26 | 21 | 22 | 19 | 25 | 41 | 89 | 112 | 119 | 106 | 71 | 13 | 48 | 33 | 23 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | E 7 | E 7 | E 7 | E 8 | E 8 | — | — | E 9 | ENE 5 | NE 5 | ENE 5 | — | — | SSE 12 | SSE 11 | ESE 11 | ESE 11 | E 11 | — |
| kJ | 5 | 5 | 15 | 17 | 26 | 18 | 22 | — | — | 25 | 11 | 6 | 2 | — | — | 96 | 48 | 41 | 24 | 2 | — |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | — | — | — | — | NE 4 | ENE 4 | NE 5 | — | SSW 3 | — | — | NE 5 | ENE 4 | ENE 4 | NE 4 | NE 4 | NNE 4 | NE 4 | NE 5 |
| kJ | 103 | 93 | — | — | — | — | 5 | 22 | 32 | — | 1 | — | — | 5 | 3 | 6 | 26 | 21 | 13 | 17 | 43 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 1 | 1 | 0 | 8 | 68 | 16 | 2 | 2 | 0 | 0 | 15 | 0 | 0 | 15 | 0 | 0 | 68 | 16 |
Best forecast wave conditions in Espírito Santo | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Coral Um Surf forecast
The above surf forecast table for Coral Um provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Coral Um can be found by selecting the local surf guide option on the grey menu. Our Coral Um 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 (Coral Um) 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 Coral Um 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.
Coral Um is 5 km (3 miles) from the city of Vila Velha. If you plan a holiday in Espírito Santo, look for hotels and other accommodation in Vila Velha. Vila Velha has rooms for a wide range of budgets as well as car hire and transport links.
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