Surf Forecasts:
Costa Nova surf forecast from 23 Aug 2026:
- Best quality surf: Friday 28 Aug, 7AM (local time) - 10ft (3.0m), 11s period, NW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 10ft (3.0m), 12s period, NW swell with 2,389 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 10PM (local time) - 6.5ft (2.0m), 9s period with WSW 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 (Aug 23) at 10PM. The primary swell is predicted to be 2.0m and 9s period with a secondary swell of 0.3m and 8s. Another secondary swell of 0.1m and 8s is also forecast. 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 12s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-offshore 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 (Aug 24) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 23rd Aug) | 6.5ft (2.0m) 9s |
| Best Surf | 7AM (Fri 28th Aug) | 10ft (3.0m) 11s |
| Most Powerful | 10AM (Fri 28th Aug) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
Short Range ForecastHeavy rain (total 21mm), heaviest during Sun afternoon. Warm (max 25°C on Sun morning, min 17°C on Tue night). Winds decreasing (fresh winds from the SSW on Mon morning, calm by Tue night). | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Wed night. Warm (max 20°C on Wed morning, min 16°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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) | W 10 | W 10 | SW 9 | SW 8 | SW 8 | WSW 7 | W 6 | W 6 | W 6 | WSW 6 | W 7 | WNW 8 | WNW 8 | WNW 8 | WNW 10 | NW 12 | NW 11 | NW 10 | NW 10 | NW 9 | NNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 620 | 363 | 657 | 602 | 545 | 209 | 83 | 79 | 61 | 67 | 188 | 350 | 394 | 574 | 1346 | 2389 | 1605 | 769 | 479 | 328 | 270 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross-on | cross | cross | on | cross-off | cross | on | cross | on | cross-on | glassy | cross-off | on | cross-off | glassy | on | glassy |
High Tide | 1:18PM2.55m | 1:51AM2.51m | 2:09PM2.71m | 2:34AM2.67m | 2:49PM2.87m | 3:11AM2.82m | 3:24PM3.01m | 3:44AM2.94m | 3:56PM3.13m | 4:14AM3.04m | 4:27PM3.22m | 4:45AM3.10m | 4:57PM3.26m | ||||||||
Low Tide | 7:07PM1.50m | 7:22AM1.47m | 8:01PM1.34m | 8:11AM1.31m | 8:41PM1.17m | 8:50AM1.14m | 9:16PM1.01m | 9:25AM0.98m | 9:50PM0.88m | 9:59AM0.86m | 10:23PM0.78m | 10:33AM0.78m | 10:57PM0.73m | ||||||||
 |  |  | | |  |  |  |  | | | | | |  | | | | | | | |
 | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 8:22 | — | — | 8:20 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — |
mm | 1 | 8 | 3 | 3 | 2 | 4 | — | — | — | 2 | — | 5 | 4 | — | — | — | — | — | — | — | — |
Temp °C | 25 | 21 | 20 | 22 | 21 | 20 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 20 | 20 | 19 |
Feels °C | 22 | 22 | 21 | 18 | 18 | 20 | 20 | 20 | 22 | 17 | 18 | 18 | 15 | 15 | 18 | 17 | 17 | 17 | 18 | 19 | 22 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | SW 9 | NNW 8 | NNW 7 | WSW 7 | W 6 | W 6 | W 6 | NW 9 | W 7 | WNW 8 | SW 11 | WNW 8 | WNW 10 | NW 12 | NW 11 | NW 10 | NW 10 | NW 9 | NNW 9 |
| kJ | 620 | 363 | 657 | 11 | 5 | 209 | 83 | 79 | 61 | 13 | 188 | 350 | 5 | 574 | 1346 | 2389 | 1605 | 769 | 479 | 328 | 270 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | SW 13 | S 13 | N 7 | SSW 6 | N 6 | NW 10 | — | NW 8 | SW 11 | SW 11 | SW 11 | — | — | — | — | — | — | — |
| kJ | 20 | 11 | 11 | 7 | 3 | 1 | 25 | 1 | 4 | — | 34 | 5 | 5 | 5 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | — | — | — | SW 13 | N 6 | W 10 | W 10 | SW 12 | SW 12 | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 7 | — | — | — | 6 | 1 | 2 | 2 | 6 | 5 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 6 | — | SW 8 | SW 8 | — | — | — | — | WSW 6 | — | — | WNW 8 | WNW 8 | — | — | — | — | — | NNW 3 | — |
| kJ | — | 88 | — | 602 | 545 | — | — | — | — | 67 | — | — | 394 | 370 | — | — | — | — | — | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 32 | 48 | 224 | 224 | 147 | 5 | 147 | 0 | 233 | 351 | 147 | 351 | 351 | 0 | 2 | 222 | 0 | 0 | 97 | 0 |
Best forecast wave conditions in Beira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
Nearest