Surf Forecasts:
Costa Nova surf forecast from 21 Jul 2026:
- Best quality surf: Monday 27 Jul, 1AM (local time) - 7ft (2.1m), 7s period, NNW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 1AM (local time) - 8ft (2.5m), 8s period, NNW swell with 935 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 1AM (local time) - 1.5ft (0.4m), 10s period with WNW 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 Wednesday (Jul 22) at 1AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.5m and 7s. 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 2.5m 8s and forecast to arrive on Sunday (Jul 26) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Tuesday (Jul 28) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 22nd Jul) | 1.5ft (0.4m) 10s |
| Best Surf | 1AM (Mon 27th Jul) | 7ft (2.1m) 7s |
| Most Powerful | 1AM (Sun 26th Jul) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you—this is a tough one. The forecast is a long, flat run of mediocrity for Costa Nova. There’s a few small windows where you could get wet, but you won’t be writing home about it.
The water is sitting at 68°, which is a touch warmer than normal for this time of year, so that’s one small comfort. The first surfable moment comes in on Tuesday morning, July 21st. We’re looking at a tiny 2 ft swell from the NNW with a weak period of 8 seconds. The combined energy is a measly 68, so there’s hardly any push. But the wind is glassy, dead calm, which means the surface will be like a mirror. If you’re desperate for a longboard session or a paddle, you could get a few knee-high bumps. But honestly, it’s very ordinary.
Wednesday morning, July 22nd, is a repeat – 1 ft from the WNW, period bumps up to 10 seconds, and combined energy drops to 63. Again, glassy conditions. You’ll be scratching for waves, but you won’t be fighting wind.
After that, it’s a long, grim stretch. From Wednesday afternoon right through to the end of July, the wind goes onshore, cross-shore, or just generally messy. The swell gets a little bigger around the 25th and 26th, hitting 5 ft to 6 ft, and the combined energy jumps into the 300s, but the wind is howling from the NNW at 18–22 mph, turning the ocean into a choppy, lumpy mess. These are not paddle-surfing conditions. This setup looks far more interesting for a kite surfer than anyone with a shortboard.
There’s a half-decent moment on the morning of Thursday, July 30th. The wind goes glassy again, and we get a tiny 1 ft WNW swell with a 10-second period. Combined energy is only 56. It’s clean, but it’s still small and very ordinary. After that, the wind stays onshore for the first week of August, with chest-high slop and cross-onshore winds ruining any chance of a good wave.
The best on offer? There isn’t a true standout. If I had to pick, I’d say the Tuesday morning (July 21st) or the Thursday morning (July 30th) are your only shots. Glassy, tiny, and clean, but you’ll be sharing it with the sea gulls. Expect crowds to be possible, as it’s a fairly consistent spot, but with waves this weak, most will stay home.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 17°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Warm (max 20°C on Fri morning, min 18°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the NNW by Sun afternoon). | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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 | WNW 10 | WNW 10 | WNW 10 | NNW 6 | NW 6 | NW 6 | WNW 9 | WNW 9 | NNW 7 | W 5 | W 6 | WNW 7 | WNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 9 | NNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 40 | 20 | 33 | 32 | 25 | 19 | 19 | 16 | 16 | 18 | 25 | 97 | 156 | 257 | 935 | 307 | 302 | 462 | 178 | 339 | 316 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | glassy | on | glassy | cross-on | on | glassy | cross-on | on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-on | cross-on | glassy |
High Tide | 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 | 2:28PM2.75m | 2:52AM2.67m | 3:09PM2.87m | 3:32AM2.77m | ||||||||
Low Tide | 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 | 7:40AM1.40m | 8:18PM1.32m | 8:28AM1.28m | 9:01PM1.19m | ||||||||
 |  |  | | | | | | | | |  | | | | | | | | | | |
 | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — | — | 8:55 | — | — | 8:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 20 | 21 | 19 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 24 | 22 | 23 |
Feels °C | 19 | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 22 | 19 | 19 | 19 | 19 | 19 | 15 | 17 | 15 | 16 | 23 | 20 | 23 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NW 6 | NW 6 | NNW 6 | NNW 6 | W 5 | NNW 7 | W 6 | WNW 7 | — | — | NW 13 | — | NW 12 | NNW 7 | WNW 9 | NNW 9 |
| kJ | 40 | 17 | 25 | 24 | 25 | 19 | 19 | 16 | 16 | 12 | 17 | 97 | 156 | — | — | 7 | — | 35 | 178 | 15 | 316 |
Swell 2 Height (m) Direction Period (s) | WSW 5 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | W 4 | NNW 7 | WNW 8 | NNW 7 | NNW 6 | — | — | W 13 | — | NW 12 | NNW 10 | WNW 9 | W 9 |
| kJ | 7 | 20 | 33 | 32 | 18 | 16 | 16 | 16 | 3 | 18 | 7 | 9 | 8 | — | — | 4 | — | 21 | 72 | 15 | 6 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | W 5 | NNW 8 | N 9 | — | N 9 | SW 13 | WSW 4 | WNW 9 | WNW 8 | S 11 | SW 11 | W 11 | — | — | — | — | — | WNW 9 | — | — |
| kJ | 21 | 4 | 7 | 7 | — | 2 | 7 | 2 | 15 | 7 | 2 | 5 | 2 | — | — | — | — | — | 16 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 4 | — | — | W 5 | — | — | WNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | — | NNW 9 | — |
| kJ | — | — | — | — | — | — | — | 1 | — | — | 25 | — | — | 257 | 935 | 307 | 302 | 462 | — | 339 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 147 | 0 | 0 | 321 | 264 | 20 | 222 | 264 | 286 | 426 | 76 | 40 | 1124 | 218 | 248 | 1155 | 0 | 32 | 118 | 0 |
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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