Surf Forecasts:
Costa Nova surf forecast from 11 Jul 2026:
- Best quality surf: Saturday 18 Jul, 4AM (local time) - 7ft (2.2m), 7s period, NNW swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 1AM (local time) - 10ft (3.0m), 8s period, NNW swell with 835 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 1AM (local time) - 2ft (0.6m), 9s 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 Monday (Jul 13) at 1AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Costa Nova in the next 16 days are 3.0m 8s and forecast to arrive on Sunday (Jul 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Jul 13) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 13th Jul) | 2ft (0.6m) 9s |
| Best Surf | 4AM (Sat 18th Jul) | 7ft (2.2m) 7s |
| Most Powerful | 1AM (Sun 19th Jul) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
Alright folks, Rusty here. Let’s have a look at what Costa Nova has lined up for us. I’ll be straight with you – the next two weeks are a tough watch. We’ve got a long, dry spell of poor conditions to start, and only a couple of fleeting moments that might be worth paddling out for.
The first real shot at anything decent comes on the morning of Wednesday the 15th. After days of weak, messy surf, we get a brief window of glassy conditions. The swell is tiny at only 3ft out of the west with a short 6-second period, and the combined energy is weak (78). But with the wind gone glassy, it will be clean. It’s not exciting, but it’s the first time the ocean hasn’t looked like a washing machine.
After that, it’s back to the grind. We see the swell pick up significantly from the NNW around the 18th, but every session is ruined by onshore or cross-shore wind. By Saturday the 18th, the swell is building to 6ft with strong energy (338), but it’s lumpy and cross-onshore. Not good. This trend continues right through the following week.
We hit a wall on the 21st of July. There’s a huge pulse of swell from the NNW, pushing 10ft to 12ft with monster energy (818 and 1531). The wind even goes favourable for a moment, but that swell is way too big for Costa Nova. This is expert-only territory, and honestly, the setup looks more interesting for kite surfing than paddle surfing at those sizes.
The closest we get to a real standout is the morning of Thursday the 23rd of July. We’ve got a clean 6ft swell from the NNW with moderate energy (439) and glassy conditions thanks to a light WNW wind. The swell period is a short 8 seconds, so it won’t have much punch, but it’s the only morning in the whole run where the wind is totally off and the size is manageable. If you’re a competent surfer and you’ve been waiting, that Thursday morning is your best bet. It’s a long way off, so keep an eye on it.
For the rest, you’re looking at small, weak, or blown-out surf. There’s a couple of mornings with clean-ish conditions but the swell is simply too small (1ft to 3ft) to do anything on. Costa Nova is a beach and jetty setup, and it’s been a tough run. It won’t stay this way forever, but for now, patience is the name of the game.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Mon morning, min 16°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 16°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 8 | WSW 5 | W 6 | WNW 11 | WNW 10 | W 6 | W 6 | W 6 | W 6 | WNW 9 | WNW 9 | NNW 5 | NW 5 | NNW 6 | NNW 7 | NNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 84 | 76 | 64 | 76 | 49 | 24 | 34 | 35 | 40 | 34 | 31 | 48 | 37 | 24 | 27 | 26 | 50 | 67 | 156 | 503 | 338 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross | cross-on | cross-off | cross-off | cross-on | glassy | cross-on | cross-on | glassy | glassy | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:04AM2.86m | 2:30PM3.00m | 3:00AM2.97m | 3:22PM3.16m | 3:52AM3.06m | 4:10PM3.28m | 4:40AM3.10m | 4:56PM3.35m | 5:25AM3.10m | 5:41PM3.35m | 6:09AM3.05m | 6:25PM3.29m | 6:53AM2.96m | ||||||||
Low Tide | 7:25PM1.12m | 7:51AM1.08m | 8:26PM0.97m | 8:47AM0.98m | 9:21PM0.83m | 9:37AM0.89m | 10:12PM0.73m | 10:25AM0.83m | 10:59PM0.69m | 11:10AM0.81m | 11:44PM0.72m | 11:53AM0.85m | 00:28AM0.80m | 12:36PM0.93m | |||||||
 |  |  | |  |  | |  | | | | | | | | | | | | | | |
 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 |
 | — | 9:07 | — | — | 9:06 | — | — | 9:06 | — | — | 9:05 | — | — | 9:05 | — | — | 9:04 | — | — | 9:02 | 9:02 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 20 | 20 | 19 | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 20 | 20 | 20 | 19 | 17 | 18 | 18 | 18 | 18 |
Feels °C | 18 | 19 | 18 | 18 | 19 | 19 | 20 | 20 | 19 | 18 | 21 | 19 | 19 | 20 | 19 | 16 | 15 | 17 | 15 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 9 | WSW 5 | WSW 5 | NNW 8 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | W 8 | WNW 8 | — | — |
| kJ | 84 | 76 | 64 | 76 | 15 | 15 | 11 | 35 | 25 | 25 | 31 | 48 | 37 | 24 | 15 | 15 | 8 | 21 | 22 | — | — |
Swell 2 Height (m) Direction Period (s) | WNW 9 | W 9 | W 8 | W 7 | NW 9 | NW 8 | NW 8 | NNW 8 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | W 8 | WNW 9 | WNW 9 | WNW 8 | SW 11 | W 6 | — | — |
| kJ | 62 | 56 | 29 | 26 | 49 | 24 | 17 | 11 | 40 | 34 | 31 | 26 | 25 | 12 | 27 | 26 | 24 | 5 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | SW 16 | WNW 5 | NNW 5 | SW 19 | NNW 8 | NNW 8 | W 8 | WNW 8 | WNW 8 | NNW 7 | NNW 7 | NNW 7 | SW 12 | WNW 10 | SW 13 | SW 13 | S 11 | — | SW 12 | — | — |
| kJ | 10 | 9 | 5 | 15 | 12 | 19 | 5 | 6 | 6 | 5 | 5 | 4 | 6 | 18 | 7 | 7 | 2 | — | 6 | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | — | S 4 | SW 4 | — | SSE 3 | WSW 5 | — | — | — | — | — | — | — | NNW 3 | NW 3 | NNW 5 | NW 5 | NNW 6 | NNW 7 | NNW 7 |
| kJ | 9 | — | 9 | 8 | — | 3 | 34 | — | — | — | — | — | — | — | 1 | 5 | 50 | 67 | 156 | 503 | 338 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 222 | 20 | 65 | 286 | 0 | 8 | 224 | 0 | 297 | 222 | 0 | 0 | 222 | 81 | 681 | 298 | 81 | 396 | 1224 | 32 | 52 |
Best forecast wave conditions in Beira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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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