
Surf Forecasts:
Costa Nova surf forecast from 27 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 1AM (local time) - 4.5ft (1.3m), 10s period, NNW swell with glassy winds.
- Most powerful swell: Tuesday 28 Jul, 1AM (local time) - 4.5ft (1.3m), 10s period, NNW swell with 340 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 1AM (local time) - 4.5ft (1.3m), 10s 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 Tuesday (Jul 28) at 1AM. The primary swell is predicted to be 1.3m and 10s 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 10s and forecast to arrive on Tuesday (Jul 28) at 1AM. 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+) | 1AM (Tue 28th Jul) | 4.5ft (1.3m) 10s |
| Best Surf | 1AM (Tue 28th Jul) | 4.5ft (1.3m) 10s |
| Most Powerful | 1AM (Tue 28th Jul) | 4.5ft (1.3m) 10s |
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 the cards for the next couple of weeks.
Overall, it’s a frustrating start. We’ve got some clean, small windows early on, but the prevailing winds are mostly cross-on or worse, which kills the quality. The best bet is to pick your moments very carefully, because the first week is lean. The second week looks more promising for size, but it’s accompanied by a lot of wind. The standout is that Monday the 27th morning session, and then a big, raw swell pushing through Sunday the 9th of August onwards.
Monday morning, the 27th of July, is the pick of the early period. Costa Nova is clean with a glassy N wind at 5 km/h, and the water is much warmer than normal for this time of year, sitting at 71°. The swell is a small 2ft from the NNW, with a period of 11 seconds – that’s a nice long period groundswell, which will give it some shape and energy. The combined energy is moderate (207). It’s a small wave, but glassy and clean. The afternoon on the same day goes to crap with the NW wind picking up to 20 km/h, chopping it up.
Tuesday the 28th morning is another chance. Glassy WSW wind at 5 km/h, with a 4ft swell from the NW. The period is a solid 10 seconds, and the combined energy jumps to moderate (300). That’s a clean, fun morning wave. But again, the afternoon turns to junk with a cross-on NW breeze.
From Wednesday the 29th right through to Saturday the 2nd of August, it’s a real grind. The swell drops off, the wind is mostly cross-on, and the energy gets weak. There are periods of glassy conditions, like Thursday the 30th morning and Saturday the 1st morning, but the swell is tiny (1ft to 2ft) and the combined energy is very weak (69 and 107). It’s surfable if you’re desperate, but it’s very ordinary.
The second week picks up a bit of size, but the wind is a constant problem. Sunday the 9th of August morning sees a proper pulse: a 6ft swell from the WNW with a very long period of 12 seconds. The combined energy is strong (767). That’s a lot of water moving. But the wind is a cross NNW breeze at 20 km/h, making it messy. This is a raw, powerful swell, but it’s not clean. A beach break like Costa Nova with that long period can be a bit too straight, but the power is there. The afternoon gets worse with a fresh 30 km/h cross-on. This stretch from the 9th through the 11th is for experienced surfers only – the swell is over 5ft and up to 7ft, and the wind is a mess. The combined energy is strong to very strong (up to 851). Honestly, with that much wind and a beach setup, it could be more interesting for a kite surfer than a paddle surfer.
So, to wrap it up: the standout is Monday morning, the 27th of July, for a clean, small glassy session. The next real highlight is the Sunday morning, the 9th of August, for a big, powerful swell, but you’ll be dealing with messy wind. Don’t get your hopes up for the rest of it.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Mon morning, min 16°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Fri morning, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||
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 11 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 8 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 6 | NW 7 | WNW 10 | W 9 | NNW 8 | W 9 | W 9 | W 10 | W 10 |
Wave Graph | |||||||||||||||||||||
101 | 302 | 340 | 286 | 235 | 162 | 75 | 68 | 38 | 36 | 34 | 25 | 38 | 44 | 32 | 57 | 84 | 42 | 61 | 89 | 65 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | cross-on | cross | cross-on | cross-on | cross | glassy | cross-on | cross-on | cross-on | on | glassy | glassy | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 3:09PM2.87m | 3:32AM2.77m | 3:47PM2.97m | 4:07AM2.86m | 4:21PM3.06m | 4:40AM2.93m | 4:53PM3.12m | 5:12AM2.96m | 5:25PM3.14m | 5:43AM2.97m | 5:56PM3.14m | 6:14AM2.94m | 6:28PM3.10m | ||||||||
Low Tide | 9:01PM1.19m | 9:09AM1.16m | 9:39PM1.07m | 9:47AM1.05m | 10:14PM0.97m | 10:23AM0.96m | 10:49PM0.90m | 10:58AM0.91m | 11:24PM0.86m | 11:33AM0.89m | 11:59PM0.85m | 12:09PM0.91m | 00:37AM0.89m | ||||||||
6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | 8:54 | — | — | 8:53 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 25 | 22 | 21 | 19 | 19 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 19 | 20 | 20 | 19 | 19 | 19 | 18 |
Feels °C | 23 | 22 | 23 | 22 | 21 | 19 | 18 | 18 | 17 | 18 | 18 | 18 | 20 | 20 | 21 | 19 | 19 | 20 | 20 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | NNW 6 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 8 | NW 8 | NNW 5 | WNW 9 | NNW 6 | NW 6 | NW 7 | NW 5 | NW 7 | W 9 | W 9 | NNW 6 | W 10 | W 10 |
80 | 302 | 340 | 286 | 235 | 162 | 75 | 68 | 32 | 17 | 34 | 20 | 38 | 44 | 17 | 36 | 57 | 42 | 41 | 89 | 65 | |
Swell 2 Height (m) Direction Period (s) | NNW 11 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | W 11 | NW 8 | WNW 10 | WNW 10 | WNW 10 | NW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | W 9 | W 8 | WSW 8 | W 9 | WSW 8 | NNW 7 |
101 | 16 | 13 | 14 | 7 | 10 | 18 | 21 | 38 | 36 | 16 | 25 | 16 | 26 | 32 | 57 | 5 | 21 | 61 | 6 | 5 | |
Swell 3 Height (m) Direction Period (s) | WNW 9 | — | — | — | W 12 | W 8 | WNW 11 | — | N 10 | NW 8 | N 9 | NW 8 | NW 8 | W 11 | WNW 8 | NNW 8 | W 9 | NNW 8 | WSW 8 | — | N 8 |
26 | — | — | — | 3 | 5 | 22 | — | 2 | 16 | 2 | 10 | 9 | 10 | 11 | 14 | 2 | 20 | 12 | — | 1 | |
Wind waves Height (m) Direction Period (s) | — | NW 10 | — | — | — | — | — | NNW 3 | NNW 4 | — | NNW 5 | — | — | — | — | — | NNW 8 | NW 5 | — | NW 5 | NNW 4 |
— | 192 | — | — | — | — | — | 1 | 12 | — | 19 | — | — | — | — | — | 84 | 29 | — | 27 | 17 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 218 | 0 | 0 | 248 | 52 | 52 | 264 | 57 | 0 | 397 | 81 | 114 | 248 | 0 | 0 | 268 | 0 | 153 | 222 | 52 |
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.










