Surf Forecasts:
Costa Nova surf forecast from 19 Jul 2026:
- Best quality surf: Sunday 19 Jul, 7AM (local time) - 3.5ft (1.1m), 6s period, NW swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 10AM (local time) - 3ft (0.9m), 7s period, NNW swell with 86 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 7AM (local time) - 3.5ft (1.1m), 6s period with NW swell.
Best Forecast Surf Conditions for Costa Nova this week:
The surf forecast for Costa Nova over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 19) at 7AM. The primary swell is predicted to be 1.1m and 6s 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 Costa Nova in the next 16 days are 0.9m 7s and forecast to arrive on Monday (Jul 20) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 19th Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 7AM (Sun 19th Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 10AM (Mon 20th Jul) | 3ft (0.9m) 7s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
The Lowdown
Alright, folks. Rusty here. Let’s talk Costa Nova. We’ve got a 16-day forecast, but it starts off with a big, flat nothing. For the first week and a half, it’s a whole lot of poor surf. The first real bump is on Tuesday, July 21st, with a tiny 0.5m (2 ft) wave from the NNW, short period, and weak energy. It’s glassy, so if you’re really keen, you might find a slippery little wave. But that’s it for the first week. A long, quiet spell.
Then, things start to get interesting. The real standout is Tuesday, July 28th. That morning, the swell jumps to 2.4m (8 ft) from the NNW, with a 10-second period and strong energy. The afternoon is the real deal: 3.0m (10 ft) from the NNW, with a massive 1197 energy reading. The wind is cross-shore with a moderate breeze. This is solid, powerful groundswell, but it’s way too big for beginners. Over 2.5m (8 ft), this is strictly for the experts. The break is inconsistent, so patience is key, but the sets will be meaty. Crowds are possible.
The next morning, Wednesday, July 29th, is another winner. The swell is 2.5m (8 ft) from the NNW, but the wind goes dead calm – glassy. The energy is huge at 1654. This is a proper session for experienced surfers. The waves will have that long-period push, and with the glassy conditions, it’ll be clean and powerful. Get on it early because the afternoon turns choppy.
After that, the week fades out with smaller, wind-affected waves. The water temp is about average for the time of year, so no surprises.
To sum it up: the first week is a write-off. The standout is Tuesday the 28th through Wednesday the 29th. If you’re an expert, those two days are your window.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 17°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Wed morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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) | NNW 6 | WNW 9 | NNW 7 | NNW 7 | NW 7 | NW 8 | NNW 7 | NW 7 | WNW 10 | WNW 10 | WNW 10 | NW 6 | WNW 9 | WNW 9 | WNW 9 | NNW 7 | NW 7 | NNW 4 | WNW 5 | WNW 5 | WNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 36 | 16 | 41 | 86 | 75 | 57 | 30 | 34 | 33 | 32 | 31 | 19 | 16 | 16 | 15 | 15 | 23 | 10 | 7 | 14 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | glassy | cross | cross-on | cross-off | glassy | on | glassy | glassy | on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 7:36AM2.84m | 7:55PM3.01m | 8:23AM2.72m | 8:43PM2.82m | 9:15AM2.60m | 9:40PM2.65m | 10:18AM2.51m | 10:48PM2.52m | 11:30AM2.49m | 00:03AM2.46m | 12:40PM2.53m | 1:11AM2.49m | 1:39PM2.63m | 2:06AM2.56m | |||||||
Low Tide | 1:19PM1.04m | 1:54AM1.08m | 2:05PM1.18m | 2:40AM1.23m | 2:55PM1.33m | 3:30AM1.37m | 3:53PM1.45m | 4:28AM1.47m | 5:02PM1.53m | 5:34AM1.51m | 6:18PM1.52m | 6:42AM1.48m | 7:26PM1.44m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | — | — | 9:01 | — | — | 9:00 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 22 | 23 | 20 | 20 | 20 | 19 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 19 | 18 |
Feels °C | 20 | 21 | 22 | 22 | 23 | 22 | 22 | 20 | 20 | 20 | 20 | 19 | 18 | 17 | 19 | 19 | 17 | 19 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | NNW 6 | NNW 5 | NNW 7 | NNW 7 | NW 7 | NW 8 | NNW 7 | NW 7 | NNW 7 | NNW 6 | NNW 6 | NW 6 | NNW 6 | WNW 9 | NNW 6 | NNW 7 | WNW 8 | W 4 | WNW 5 | NNW 6 | WNW 5 |
| kJ | 36 | 15 | 41 | 86 | 75 | 57 | 30 | 28 | 26 | 15 | 15 | 19 | 14 | 16 | 8 | 15 | 13 | 3 | 7 | 4 | 16 |
Swell 2 Height (m) Direction Period (s) | W 4 | WNW 9 | W 4 | W 8 | W 8 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | W 5 | WNW 9 | WNW 8 | S 11 | WNW 8 | NNW 6 | W 8 | WNW 7 |
| kJ | 6 | 16 | 6 | 11 | 10 | 23 | 21 | 34 | 33 | 32 | 31 | 16 | 16 | 4 | 15 | 14 | 2 | 6 | 4 | 5 | 10 |
Swell 3 Height (m) Direction Period (s) | WNW 7 | NW 8 | NW 8 | WNW 12 | WNW 11 | W 7 | WSW 4 | W 7 | WSW 6 | N 10 | SW 4 | SW 13 | W 5 | SW 13 | W 4 | W 4 | S 11 | S 11 | WNW 8 | W 10 | WNW 10 |
| kJ | 11 | 9 | 18 | 15 | 12 | 4 | 4 | 1 | 4 | 2 | 1 | 7 | 2 | 7 | 3 | 1 | 2 | 2 | 6 | 2 | 10 |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | — | — | — | — | W 5 | — | — | W 4 | — | — | NNW 6 | NNW 3 | NW 6 | NW 7 | NNW 4 | NNW 3 | WNW 5 | — |
| kJ | — | 6 | — | — | — | — | — | 4 | — | — | 1 | — | — | 16 | 5 | 9 | 23 | 10 | 4 | 14 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 222 | 0 | 5 | 357 | 0 | 0 | 286 | 0 | 20 | 222 | 221 | 221 | 264 | 505 | 681 | 298 | 499 | 581 | 1155 | 268 |
Best forecast wave conditions in Beira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Costa Nova surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Costa Nova Surf forecast
The above surf forecast table for Costa Nova provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Costa Nova can be found by selecting the local surf guide option on the grey menu. Our Costa Nova 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 (Costa Nova) 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 Costa Nova 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.
Costa Nova is 8 km (5 miles) from the city of Ilhavo. If you plan a holiday in Beira, look for hotels and other accommodation in Ilhavo. Ilhavo has rooms for a wide range of budgets as well as car hire and transport links.
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