Surf Forecasts:
Costa Nova surf forecast from 30 Jul 2026:
- Best quality surf: Saturday 1 Aug, 4AM (local time) - 4.5ft (1.3m), 6s period, NNW swell with glassy winds.
- Most powerful swell: Monday 3 Aug, 4PM (local time) - 4.5ft (1.3m), 9s period, W swell with 251 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 7AM (local time) - 2ft (0.6m), 8s period with NW 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 (Jul 31) at 7AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.3m and 9s. 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 1.3m 9s and forecast to arrive on Monday (Aug 03) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 03) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 31st Jul) | 2ft (0.6m) 8s |
| Best Surf | 4AM (Sat 1st Aug) | 4.5ft (1.3m) 6s |
| Most Powerful | 4PM (Mon 3rd Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Costa Nova over the next 16 days.
The Lowdown
Alright, folks, Rusty here again, but this time in feet and knots. Let’s talk about Costa Nova for the next 16 days. We’re looking at a long stretch of small or messy conditions, but the second week has a couple of promising sessions.
The first real surf comes on Saturday morning, August 1st. It’s a small 3ft wave from the NNW with a short 6-second period, and the wind is glassy. The combined energy is weak (159). The water is a touch warmer than normal at 68°F. Crowds are possible. Sunday morning, August 2nd, is also glassy with a 2ft swell from the W, 8 seconds, and combined energy of 109. It’s tiny, but clean. After that, it’s a dry spell of poor surf and onshore winds for several days.
The best window is the stretch from the morning of Tuesday, August 11th, through to the morning of Thursday, August 14th. This is the standout. The morning of Tuesday, August 11th, has a 6ft groundswell from the NNW (8 seconds) with glassy conditions, and a combined energy of 394 (moderate). That’s clean and solid. The morning of Wednesday, August 12th, is bigger at 7ft from the NNW, period 8 seconds, but with a light cross-on wind. Combined energy is 626 (moderate to strong). The best session of the whole run is the morning of Thursday, August 13th – glassy, 7ft from the NNW (8 seconds), and combined energy of 575 (moderate). This is the pick: a solid, clean swell with light wind. The swell is over 5ft, so it’s getting into expert territory. The period is short (8 seconds), so it’ll be a bit crumbly, but the clean conditions will make it rideable.
The morning of Friday, August 14th, is still pumping with a 7ft NNW swell, but the wind is onshore, so it’ll be a bit messy. The best windows are those glassy mornings in the second week.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 16°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 17°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 10 | NW 8 | WNW 9 | WNW 9 | WNW 9 | NNW 6 | W 9 | W 9 | NW 7 | NW 6 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 11 | WNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 52 | 34 | 27 | 26 | 26 | 145 | 80 | 60 | 56 | 50 | 68 | 62 | 78 | 251 | 207 | 114 | 103 | 82 | 57 | 39 | 164 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross | glassy | cross-on | glassy | glassy | cross-on | glassy | cross | cross-on | cross-on | glassy | cross-on | cross | cross-on | on | cross-off |
High Tide | 4:53PM3.12m | 5:12AM2.96m | 5:25PM3.14m | 5:43AM2.97m | 5:56PM3.14m | 6:14AM2.94m | 6:28PM3.10m | 6:48AM2.89m | 7:03PM3.02m | 7:26AM2.81m | 7:44PM2.91m | 8:11AM2.71m | 8:35PM2.77m | ||||||||
Low Tide | 10:23AM0.96m | 10:49PM0.90m | 10:58AM0.91m | 11:24PM0.86m | 11:33AM0.89m | 11:59PM0.85m | 12:09PM0.91m | 00:37AM0.89m | 12:48PM0.97m | 1:17AM0.97m | 1:31PM1.06m | 2:02AM1.08m | 2:21PM1.18m | 2:55AM1.21m | |||||||
 | |  |  | | | | | | | |  | | | | | | | | | | |
 | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 19 | 18 | 19 | 18 | 19 | 19 | 19 | 19 | 20 | 19 | 21 | 22 | 21 | 21 | 21 | 20 | 20 | 21 | 20 |
Feels °C | 18 | 18 | 19 | 19 | 18 | 18 | 21 | 18 | 20 | 22 | 19 | 19 | 20 | 22 | 23 | 20 | 21 | 21 | 19 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | NW 8 | NW 5 | WNW 9 | W 9 | NNW 6 | W 9 | NW 7 | NW 6 | NW 5 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | WNW 11 |
| kJ | 52 | 34 | 17 | 22 | 26 | 63 | 80 | 60 | 56 | 49 | 19 | 62 | 78 | 251 | 207 | 114 | 103 | 82 | 57 | 39 | 164 |
Swell 2 Height (m) Direction Period (s) | NW 8 | NW 8 | WNW 9 | WNW 9 | W 11 | NW 9 | W 9 | NNW 8 | W 9 | W 8 | W 10 | NW 4 | NNW 7 | NNW 8 | N 8 | N 8 | N 9 | NNW 9 | W 10 | WNW 11 | SW 12 |
| kJ | 31 | 31 | 27 | 26 | 10 | 3 | 73 | 24 | 40 | 50 | 68 | 3 | 5 | 6 | 1 | 1 | 6 | 8 | 17 | 37 | 6 |
Swell 3 Height (m) Direction Period (s) | N 10 | N 9 | N 9 | NNW 8 | NNW 7 | N 10 | N 9 | WSW 8 | WSW 8 | WSW 7 | NNW 7 | NNW 7 | W 15 | — | SW 13 | SW 13 | NW 10 | NW 9 | W 12 | NW 9 | — |
| kJ | 2 | 2 | 2 | 6 | 5 | 2 | 6 | 12 | 13 | 10 | 10 | 10 | 4 | — | 7 | 7 | 4 | 3 | 11 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | — | NW 3 | — | NW 5 | NNW 6 | — | NW 6 | — | — | — | — | SSE 2 | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | — | 24 | 145 | — | 37 | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 52 | 402 | 81 | 20 | 248 | 32 | 0 | 224 | 0 | 0 | 222 | 0 | 5 | 218 | 32 | 0 | 218 | 52 | 83 | 222 | 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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