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Surf Forecasts:
Costa Nova surfForecast / Beira / Portugal
16 Day Weather and Surf, issued 6 am Sunday 17 May 2026 WESTForecast update in hr min s Forecast update imminent
Costa Nova surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Costa Nova sea temperature is
16.7° C
(Which is slightly warmer than usual)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 (May 18) at 10PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.1m and 17s. 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 2.4m 14s and forecast to arrive on Wednesday (May 20) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 18th May) | 4.5ft (1.4m) 11s |
| Best Surf | 1AM (Wed 20th May) | 4.5ft (1.3m) 14s |
| Most Powerful | 4AM (Wed 20th May) | 8ft (2.4m) 14s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Tue morning, min 13°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
NW 8 | WNW 15 | NW 13 | NW 12 | NW 12 | NW 11 | WNW 10 | WNW 10 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 11 | W 11 | W 11 | W 11 | W 11 | NNW 7 | |
151 | 279 | 919 | 992 | 722 | 485 | 448 | 470 | 633 | 1995 | 1569 | 997 | 591 | 608 | 611 | 683 | 708 | 514 | 457 | 388 | 250 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross-on | cross | cross-on | on | cross | cross-on | on | cross-off | cross | cross | cross | cross | cross-on | glassy | glassy | cross-on | cross | cross | cross-on | cross-on | |
High Tide | 4:29PM3.28m | 4:54AM3.19m | 5:14PM3.26m | 5:42AM3.09m | 6:01PM3.18m | 6:34AM2.94m | 6:53PM3.07m | 7:32AM2.78m | 7:52PM2.94m | 8:39AM2.63m | 9:01PM2.82m | 9:53AM2.55m | 10:15PM2.76m | ||||||||
Low Tide | 10:04AM0.71m | 10:29PM0.67m | 10:48AM0.76m | 11:17PM0.71m | 11:34AM0.86m | 00:07AM0.81m | 12:22PM1.00m | 1:00AM0.94m | 1:14PM1.16m | 1:59AM1.10m | 2:13PM1.30m | 3:05AM1.22m | 3:19PM1.41m | ||||||||
 |  |  |  | |  | | | | | | | | | | | |  | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 8:45 | — | — | 8:46 | — | — | 8:47 | — | — | 8:49 | — | — | 8:50 | — | — | 8:51 | — | — | 8:51 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 15 | 14 | 14 | 15 | 15 | 17 | 17 | 16 | 22 | 22 | 24 | 25 | 25 | 21 | 21 | 18 | 18 | 16 | 15 | 15 |
12 | 10 | 9 | 12 | 13 | 14 | 16 | 16 | 16 | 20 | 19 | 20 | 22 | 22 | 19 | 18 | 16 | 16 | 13 | 10 | 15 | |
Swell 1 Height (m) Direction Period (s) | NW 8 | WNW 15 | NW 13 | NW 12 | NW 12 | NW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 13 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 11 | W 11 | W 11 | W 11 | W 11 | WNW 10 |
 kJ | 151 | 279 | 919 | 992 | 722 | 485 | 448 | 470 | 588 | 1995 | 1569 | 997 | 591 | 608 | 611 | 683 | 708 | 514 | 457 | 388 | 250 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | WNW 11 | — | — | SW 18 | W 16 | W 15 | WNW 14 | WNW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | W 13 | — | SW 14 | SW 14 | SW 13 | SW 13 |
| kJ | 29 | 47 | — | — | 12 | 5 | 17 | 40 | 633 | 9 | 8 | 8 | 8 | 7 | 7 | 3 | — | 8 | 7 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | NW 16 | W 8 | — | — | — | SW 16 | SW 16 | SW 16 | SW 15 | — | — | — | — | — | — | — | — | — | — | N 11 | W 13 |
| kJ | 67 | 1 | — | — | — | 10 | 10 | 10 | 9 | — | — | — | — | — | — | — | — | — | — | 2 | 3 |
Wind waves Height (m) Direction Period (s) | — | NW 8 | NNW 6 | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | — | — | NNW 4 | NNW 5 | NNW 5 | NNW 7 |
| kJ | — | 173 | 100 | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 25 | 56 | 90 | 248 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 118 | 413 | 218 | 52 | 222 | 5 | 145 | 222 | 0 | 36 | 221 | 32 | 48 | 83 | 0 | 0 | 222 | 218 | 218 | 358 | 32 |
Best forecast wave conditions in Beira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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.
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