Costa Nova Surf Break

Lat Long: 40.63° N 8.75° W

Costa Nova Surf Forecast and Surf Report

Issued: 12 pm 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Costa Nova sea temperature is
21.7° C
2.7° 

Costa Nova surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


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 TypeTime (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 Forecast

Mostly dry. Warm (max 27°C on Mon morning, min 16°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly 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
Rating
(10 max)
2
0
2
2
0
0
0
0
0
1
0
0
0
0
1
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
NNW
11
1.3
NNW
10
1.3
NNW
10
1.2
NW
10
1.1
NW
10
1
NW
9
0.7
NW
9
0.7
NW
8
0.4
WNW
10
0.4
WNW
10
0.4
WNW
9
0.4
WNW
9
0.7
NW
6
0.7
NW
7
0.4
WNW
10
0.6
W
9
0.8
NNW
8
0.5
W
9
0.6
W
9
0.7
W
10
0.6
W
10
Wave Graph
Metric surfscale
Energy kJ
101
302
340
286
235
162
75
68
38
36
34
25
38
44
32
57
84
42
61
89
65
Wind (km/h)
5
N
20
NW
5
N
5
WSW
15
NW
15
N
10
NNW
20
NW
15
N
5
WSW
15
NW
5
NW
10
SW
15
W
0
NW
0
SW
15
NW
0
NNE
5
SW
15
NW
10
N
Wind State
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
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:28
6:28
6:30
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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