Surf Forecasts:
Costa Nova surf forecast from 7 Aug 2026:
- Best quality surf: Friday 14 Aug, 4AM (local time) - 2.5ft (0.8m), 10s period, NW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 7AM (local time) - 3.5ft (1.0m), 9s period, WNW swell with 184 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 4AM (local time) - 2ft (0.6m), 8s period with NNW 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 Friday (Aug 07) at 4AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.7m 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 1.0m 9s and forecast to arrive on Friday (Aug 14) at 7AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 7th Aug) | 2ft (0.6m) 8s |
| Best Surf | 4AM (Fri 14th Aug) | 2.5ft (0.8m) 10s |
| Most Powerful | 7AM (Fri 14th Aug) | 3.5ft (1.0m) 9s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer at Costa Nova over the next sixteen days.
Right out of the gate, I gotta be straight with you – it’s a slow start. The first few days are pretty ordinary. We’ve got a bit of swell on Friday the 7th, with 3 ft from the NNW, but it’s only got a short period of 8 seconds and the energy is weak (128). The morning is glassy, which is a nice touch, but the waves are just... flat. The afternoon turns into a mess with a strong cross-onshore wind. Saturday and Sunday are the same story – small, weak, and choppy. We’re looking at a gap of a few days here where the only real option is to stay home and wax your board.
Now, the first real glimmer of hope comes on Friday the 14th of August. That morning, the wind is glassy, and the swell bumps up to a clean 3 ft from the WNW, with a period of 10 seconds. The energy is moderate (420), and it’s the first time the wave comment is actually positive. This is the standout of the first week. It’s not a big swell, but it’s clean, and the direction is right for the beach.
After that, we get a bit of a pulse. Saturday the 15th and Sunday the 16th see a bigger swell, but the wind is a problem – strong cross-onshore winds ruin the quality. The waves get up to 7 ft on Sunday, but at that size with that wind, it’s a messy, choppy mess. The energy is moderate to strong (396), but it’s not worth paddling out for.
The second week, from the 17th onwards, is a mixed bag. The swell stays solid, often over 7 ft, and the energy gets high, hitting 854 on the 22nd. But the wind is almost always cross or cross-onshore, and the wave comment is poor or marginal. The only potential is the morning of Friday the 21st, with a 6 ft from the NNW and a light wind, but it’s still a cross-on situation. The period on the 22nd jumps to 11 seconds, which is nice, but the wind is a fresh cross-shore, making it lumpy. This is expert territory, and it’s not clean.
Honestly, for the whole 16 days, the only true standout is the morning of Friday the 14th. Glassy conditions, a clean west-northwest swell, and a decent period. If you’re a patient surfer, that’s the one to aim for. The rest of the time, it’s either too small, too windy, or too messy. The water temperature is about average for this time of year, so no surprises there.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 18°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun night, min 17°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 8 | NNW 8 | NNW 8 | W 9 | W 7 | W 7 | W 7 | W 7 | WNW 7 | NW 8 | NW 7 | NW 7 | NW 12 | NW 8 | W 10 | W 9 | W 9 | W 9 | W 9 | W 8 | NNW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 100 | 71 | 33 | 14 | 40 | 46 | 61 | 87 | 86 | 61 | 104 | 23 | 40 | 75 | 94 | 130 | 127 | 127 | 96 | 90 | 96 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | glassy | on | glassy | glassy | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross | glassy | cross-on | cross | glassy | cross-on | cross |
High Tide | 10:38AM2.56m | 11:25PM2.57m | 12:11PM2.62m | 00:54AM2.63m | 1:25PM2.79m | 2:02AM2.78m | 2:23PM2.99m | 2:56AM2.93m | 3:13PM3.18m | 3:43AM3.06m | 3:58PM3.33m | 4:25AM3.14m | 4:40PM3.40m | ||||||||
Low Tide | 4:37PM1.36m | 5:16AM1.37m | 6:01PM1.32m | 6:35AM1.32m | 7:19PM1.19m | 7:43AM1.19m | 8:23PM1.00m | 8:39AM1.04m | 9:15PM0.84m | 9:27AM0.89m | 10:00PM0.72m | 10:10AM0.79m | 10:41PM0.67m | ||||||||
 |  |  | | | | | | | | |  | | | | | | | | | | |
 | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | 8:44 | — | — | 8:42 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:36 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 22 | 22 | 21 | 21 | 21 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 21 | 20 | 18 |
Feels °C | 19 | 19 | 21 | 22 | 22 | 24 | 21 | 20 | 20 | 19 | 19 | 20 | 19 | 18 | 19 | 20 | 19 | 19 | 21 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | W 9 | NNW 8 | NNW 7 | W 7 | W 7 | W 7 | W 7 | WNW 7 | NW 8 | W 11 | NW 7 | NW 8 | NW 11 | W 10 | W 9 | W 9 | W 9 | NNW 6 | W 8 | W 8 |
| kJ | 100 | 26 | 33 | 10 | 40 | 46 | 61 | 87 | 86 | 61 | 2 | 23 | 17 | 31 | 94 | 130 | 127 | 127 | 49 | 90 | 68 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | S 13 | W 6 | W 6 | NNW 7 | NW 11 | NW 10 | NW 10 | NW 9 | WNW 6 | NW 14 | W 6 | NW 12 | WNW 9 | NNW 10 | NW 5 | NNW 9 | NNW 9 | W 9 | NW 11 | NW 11 |
| kJ | 28 | 3 | 7 | 6 | 5 | 32 | 50 | 47 | 67 | 33 | 7 | 6 | 35 | 16 | 42 | 27 | 32 | 16 | 96 | 32 | 94 |
Swell 3 Height (m) Direction Period (s) | — | — | W 9 | W 9 | NW 13 | N 7 | — | — | — | W 11 | S 12 | NW 9 | WNW 10 | WNW 11 | NW 7 | NNW 10 | — | NW 9 | N 9 | N 8 | — |
| kJ | — | — | 14 | 14 | 7 | 3 | — | — | — | 2 | 3 | 13 | 19 | 25 | 2 | 37 | — | 3 | 2 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | NNW 8 | — | — | — | — | — | — | — | — | NW 7 | NW 4 | NW 5 | NW 8 | NNW 5 | — | NNW 4 | NNW 5 | — | NW 5 | NNW 6 |
| kJ | — | 71 | — | — | — | — | — | — | — | — | 104 | 18 | 40 | 75 | 27 | — | 16 | 58 | — | 39 | 96 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 417 | 52 | 34 | 222 | 0 | 0 | 218 | 52 | 118 | 264 | 52 | 52 | 218 | 52 | 0 | 218 | 32 | 0 | 218 | 40 |
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)
Latest Updates
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