Surf Forecasts:
Costa Nova surf forecast from 17 Jul 2026:
- Best quality surf: Friday 24 Jul, 4AM (local time) - 4.5ft (1.3m), 8s period, NNW swell with cross-offshore winds.
- Most powerful swell: Friday 24 Jul, 4AM (local time) - 4.5ft (1.3m), 8s period, NNW swell with 223 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 4AM (local time) - 3ft (0.9m), 6s 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 Sunday (Jul 19) at 4AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 8s. 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 1.3m 8s and forecast to arrive on Friday (Jul 24) 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+) | 4AM (Sun 19th Jul) | 3ft (0.9m) 6s |
| Best Surf | 4AM (Fri 24th Jul) | 4.5ft (1.3m) 8s |
| Most Powerful | 4AM (Fri 24th Jul) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Costa Nova.
Honestly, the next week and a half is a bit of a grind. Right up until the 22nd of July, we’re looking at mostly tiny, weak, and messy conditions. It’s a real struggle to find anything worth paddling out for. There’s a lengthy gap from now until the 22nd where the surf is just too poor to recommend.
The first real glimmer of hope shows up on the morning of Wednesday, 22 July. It’s tiny, with a weak 1ft swell from the WNW, but the wind goes glassy. That’s your window for a longboard or a foiling session when it’s clean but small. The water temp is about average for this time of year.
The real standout, and the only one I’d get excited about, is Sunday, 26 July into Monday, 27 July. The swell builds to a solid 7ft to 8ft from the NNW, with moderate wave energy (654 combined energy). That’s a legitimate size, and with the early morning winds swinging light and variable, it could be proper. The period is short (8 seconds), so it’s a windswell, not a groundswell, meaning it’ll be a bit crumbly and peaky. But for a beach break, that can still be fun. The downside? The size is pushing into expert-only territory, especially if it gets a bit unruly. The afternoon winds on Sunday get strong and cross, so it’s a morning mission only.
If the swell is just too big and messy for you on the 26th, the morning of 27 July is also worth a look. The swell drops slightly to 7ft, but the winds are light and cross-shore, offering a cleaner window. This is a big, gnarly beach break though, so if you’re not confident in overhead surf, give it a miss.
The second week offers a few more marginal mornings, like the 30th and 31st, with 5ft to 6ft NNW-NW swells, but the winds are mostly cross or cross-on, keeping the quality average. Nothing compares to the 26th and 27th.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu night, min 17°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Mon morning, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 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 |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | NW 4 | WNW 8 | NW 6 | NNW 6 | W 9 | N 7 | NNW 7 | NW 7 | NNW 7 | NNW 9 | NW 8 | WNW 10 | WNW 10 | NNW 6 | NNW 6 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 13 | 13 | 13 | 13 | 46 | 36 | 16 | 28 | 96 | 75 | 68 | 94 | 72 | 33 | 32 | 26 | 26 | 82 | 86 | 164 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | on | glassy | cross | on | cross-off | cross | on | cross-off | glassy | cross-on | cross-off | glassy | on | glassy |
High Tide | 6:09AM3.05m | 6:25PM3.29m | 6:53AM2.96m | 7:09PM3.17m | 7:36AM2.84m | 7:55PM3.01m | 8:23AM2.72m | 8:43PM2.82m | 9:15AM2.60m | 9:40PM2.65m | 10:18AM2.51m | 10:48PM2.52m | 11:30AM2.49m | 00:03AM2.46m | |||||||
Low Tide | 11:53AM0.85m | 00:28AM0.80m | 12:36PM0.93m | 1:11AM0.93m | 1:19PM1.04m | 1:54AM1.08m | 2:05PM1.18m | 2:40AM1.23m | 2:55PM1.33m | 3:30AM1.37m | 3:53PM1.45m | 4:28AM1.47m | 5:02PM1.53m | ||||||||
 |  |  | | |  | | | | | |  | | | | | | | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | — | 9:02 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 19 |
Feels °C | 20 | 17 | 18 | 20 | 18 | 19 | 19 | 19 | 21 | 19 | 20 | 22 | 19 | 19 | 21 | 20 | 19 | 19 | 20 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | NW 4 | WNW 8 | NW 6 | NNW 6 | NNW 5 | N 7 | NNW 7 | NW 7 | NNW 7 | NNW 9 | NW 8 | NW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 13 | 13 | 13 | 12 | 13 | 46 | 36 | 16 | 28 | 96 | 75 | 68 | 94 | 72 | 21 | 26 | 26 | 26 | 82 | 86 | 164 |
Swell 2 Height (m) Direction Period (s) | WSW 5 | WSW 4 | SW 4 | WNW 8 | SW 5 | WNW 7 | WNW 5 | W 9 | W 4 | W 8 | W 8 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 4 | 2 | 1 | 13 | 1 | 5 | 7 | 14 | 10 | 11 | 10 | 23 | 21 | 34 | 33 | 32 | 18 | 16 | 16 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 6 | SW 6 | SW 5 | — | NW 8 | WNW 7 | NW 7 | W 8 | WNW 12 | WNW 11 | W 7 | W 7 | W 6 | NNW 9 | NNW 9 | N 9 | NNW 9 | SW 13 | SW 13 | SW 12 |
| kJ | 5 | 1 | 1 | 1 | — | 3 | 11 | 8 | 12 | 15 | 12 | 4 | 4 | 1 | 16 | 9 | 7 | 7 | 7 | 7 | 6 |
Wind waves Height (m) Direction Period (s) | — | NW 2 | NNW 4 | — | NW 4 | — | — | WNW 5 | — | — | — | — | — | — | — | — | — | — | — | WNW 2 | — |
| kJ | — | 1 | 10 | — | 9 | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1093 | 1463 | 752 | 681 | 504 | 32 | 5 | 222 | 0 | 2 | 222 | 0 | 5 | 147 | 0 | 0 | 147 | 20 | 0 | 357 | 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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