
Surf Forecasts:
Costa Nova surf forecast from 5 Jul 2026:
- Best quality surf: Sunday 12 Jul, 1AM (local time) - 4.5ft (1.3m), 8s period, NW swell with cross-offshore winds.
- Most powerful swell: Sunday 12 Jul, 4AM (local time) - 5ft (1.5m), 8s period, NW swell with 311 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 7AM (local time) - 1.5ft (0.4m), 9s 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 Monday (Jul 06) at 7AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.4m and 4s. 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 1.5m 8s and forecast to arrive on Sunday (Jul 12) 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+) | 7AM (Mon 6th Jul) | 1.5ft (0.4m) 9s |
| Best Surf | 1AM (Sun 12th Jul) | 4.5ft (1.3m) 8s |
| Most Powerful | 4AM (Sun 12th Jul) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s have a look at what Costa Nova has in store for us over the next couple of weeks.
Right off the bat, I gotta be straight with you – it’s a tough start. We’re looking at a long, dry spell with pretty much nothing worth paddling out for. From the beginning of the outlook right through until Saturday the 12th of July, it’s mostly tiny, weak swell and messy cross-onshore winds. You’ll see some waves, sure, but they’re small and poor, with combined swell energy that barely gets into the moderate range (the best early reading is only 258). Honestly, not worth the wetsuit struggle.
That all starts to change on the 12th though. Sunday morning the 12th sees the swell bump up to 4ft from the NNW, with a short period of 8 seconds. The combined energy finally hits 303 – moderate wave energy. Winds are light cross-onshore, so it’s still a bit choppy but the write-up calls it "marginal", meaning it could be okay if you’re keen and not too picky. The 13th and 14th are similar – waist-to-chest high sets around 4ft to 4ft, but the wind stays cross-onshore and it’s inconsistent. Nothing to write home about, really.
Now, the 15th of July (Wednesday morning) is interesting. Swell hits 5ft from the NNW, with light offshore winds from the WNW. For a brief moment, it’s clean. The energy is moderate at 274, but with a short 8-second period, the waves will be a bit dumpy. Still, glassy conditions make it the best bet so far, best for intermediates.
The real standout, and I mean the one that’s got me buzzing, is Saturday the 19th of July. Early morning, we’ve got a solid 8ft swell from the NNW. That’s expert territory – over 8ft is for experienced surfers only. The combined energy is massive at 1333, indicating strong to very strong wave energy. Winds are light cross-onshore from the NW, but it's clean enough to handle. However, the period is a short 8 seconds, so expect it to be a bit fat and sectiony at the beach. This spot, Costa Nova, is a beach/jetty setup, so with the size and short period, it’s going to be a handful – definitely not for beginners. The best call here is for the confident crew only. Sunday afternoon drops off to 8ft with onshore wind, so get it early.
Monday the 20th is still pumping at 7ft but with fresh cross-onshore winds that will mess up the surface.
So, to wrap it up: the first week and a half is a write-off. Saturday the 12th to Tuesday the 15th offers some marginal, small waves for the desperate. Your absolute top pick is the morning of Saturday the 19th of July – big, meaty, and powerful, but only if you’ve got the skills. The water temp sits around 64°F at the start, which is about average for this time of year, nothing unusual.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Sun morning, min 15°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Wed morning, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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) | NW 11 | NW 10 | NW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 8 | NW 4 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 6 | WNW 8 | WNW 8 | NW 8 |
Wave Graph | |||||||||||||||||||||
29 | 25 | 21 | 32 | 31 | 26 | 14 | 12 | 19 | 38 | 37 | 55 | 49 | 55 | 55 | 73 | 70 | 56 | 73 | 125 | 206 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross | on | cross-on | glassy | on | cross-on | cross-on | cross | on | cross-off |
High Tide | 7:34PM2.89m | 8:02AM2.67m | 8:20PM2.83m | 8:54AM2.62m | 9:16PM2.75m | 9:59AM2.59m | 10:26PM2.70m | 11:14AM2.61m | 11:45PM2.70m | 12:28PM2.70m | 00:59AM2.76m | 1:33PM2.84m | 2:04AM2.86m | ||||||||
Low Tide | 1:16PM1.13m | 1:49AM1.09m | 2:02PM1.19m | 2:38AM1.15m | 2:55PM1.25m | 3:34AM1.21m | 3:55PM1.30m | 4:36AM1.24m | 5:04PM1.30m | 5:43AM1.23m | 6:16PM1.24m | 6:50AM1.17m | 7:25PM1.12m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | |
— | — | 9:08 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 28 | 26 | 23 | 22 | 19 | 18 | 18 | 16 | 18 | 18 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 18 | 18 |
Feels °C | 27 | 24 | 24 | 23 | 21 | 20 | 17 | 16 | 15 | 16 | 16 | 17 | 19 | 16 | 18 | 17 | 17 | 19 | 19 | 17 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 10 | NW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 8 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 5 | WNW 9 | WNW 9 | NNW 5 | WNW 9 | NW 6 | NNW 6 | WNW 8 | NW 8 |
29 | 25 | 21 | 32 | 31 | 26 | 14 | 12 | 11 | 38 | 37 | 55 | 23 | 55 | 55 | 34 | 70 | 56 | 60 | 125 | 206 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | NW 9 | NW 8 | NNW 8 | NNW 8 | NNW 8 | W 8 | W 7 | W 7 | W 7 | WNW 9 | — | W 16 | WNW 9 | — | WNW 8 | WNW 8 | NNW 7 | NW 9 |
28 | 16 | 16 | 20 | 11 | 7 | 6 | 6 | 5 | 4 | 4 | 1 | 49 | — | 5 | 73 | — | 39 | 73 | 93 | 106 | |
Swell 3 Height (m) Direction Period (s) | NW 6 | N 7 | W 11 | NW 5 | SW 13 | S 11 | S 11 | NW 12 | NW 7 | NW 7 | — | — | — | — | — | W 16 | — | NW 13 | NW 11 | NW 11 | SW 15 |
8 | 1 | 2 | 4 | 7 | 2 | 2 | 5 | 2 | 2 | — | — | — | — | — | 5 | — | 7 | 19 | 40 | 9 | |
Wind waves Height (m) Direction Period (s) | — | NW 6 | NNW 4 | — | NW 5 | NW 3 | NW 4 | NW 4 | NW 4 | NW 5 | NW 4 | NNW 5 | — | NW 5 | NNW 5 | — | NW 5 | — | — | — | — |
— | 8 | 5 | — | 4 | 2 | 2 | 6 | 19 | 23 | 20 | 27 | — | 19 | 22 | — | 17 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 154 | 81 | 114 | 298 | 100 | 1074 | 264 | 100 | 118 | 218 | 57 | 153 | 218 | 0 | 499 | 357 | 34 | 5 | 122 | 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.










