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Surf Forecasts:

Costa Nova surfForecast / Beira / Portugal

information circle16 Day Weather and Surf, issued 5 pm Wednesday 18 Mar 2026 WET
Forecast update in hr  min  s Forecast update imminent
Costa Nova surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Costa Nova sea temperature is
14.2° C
 (Which is normal for this time of year)

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 Wednesday (Mar 18) at 9PM. The primary swell is predicted to be 3.5m and 16s period with a secondary swell of 0.8m and 6s. 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 3.5m 16s and forecast to arrive on Wednesday (Mar 18) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Mar 19) at 6AM.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 18th Mar)11ft (3.5m) 16s
Best Surf 9PM (Wed 18th Mar)11ft (3.5m) 16s
Most Powerful 9PM (Wed 18th Mar)11ft (3.5m) 16s

Table - best surf conditions forecast for Costa Nova over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 18mm), heaviest on Fri morning. Warm (max 21°C on Thu afternoon, min 12°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Tue morning, min 13°C on Sat night). Wind will be generally light.

Wed
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
!
!
4
4
4
3
2
2
2
2
3
4
3
4
3
1
3
3
0
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
WNW
3
WNW
2.5
NW
2.3
NW
2
NW
1.6
NW
1.3
NW
1.1
NW
0.7
WNW
1
NW
0.6
NW
1.4
NW
1.2
NW
1.4
NW
1.3
NW
1.2
NW
1.5
NW
1.3
NW
1.3
NW
1.1
NW
1.1
NW
Period(s) (?)151614141313121213111715141413121312121112
Wave
Graph
(?)Metric surfscale
Energy kJ (?)38794963255420081325784520298149255211856548825537416710520420278355
Wind
(km/h)
20
SSE
20
ESE
15
SSE
10
ESE
5
SE
20
E
20
ESE
10
SE
10
ENE
5
ENE
5
E
5
ESE
10
NNW
5
NNE
5
ESE
15
NW
5
N
5
SE
15
NW
10
N
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		glassoffglasscross-
on		cross-
off		glasscross-
on		cross-
off		glasscross-
on		crosscross
High Tide
/ height (m)
3:04PM
3.16
3:18AM
3.34
3:37PM
3.23
3:51AM
3.39
4:10PM
3.25
4:26AM
3.36
4:45PM
3.21
5:03AM
3.25
5:22PM
3.11
5:44AM
3.06
6:04PM
2.96
6:32AM
2.83
6:56PM
2.77
7:39AM
2.59
Low Tide
/ height (m)
8:52PM
0.74
9:16AM
0.64
9:28PM
0.65
9:52AM
0.60
10:06PM
0.63
10:29AM
0.64
10:45PM
0.68
11:08AM
0.75
11:27PM
0.80
11:50AM
0.93
12:14AM
0.98
12:37PM
1.15
1:10AM
1.18
Wed
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Sunrise--6:41--6:39--6:37--6:35--6:33--6:31--6:31
Sunset6:44--6:45--6:45--6:46--6:47--6:49--6:50--
rain showers
part cloud
cloud
cloud
light rain
mod rain
part cloud
rain showers
light rain
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
Rain (mm)
1---49-31------------
Temp. °C191519211713161413151415151515151417171617
Feels °C (?)151115191610141212141314131313121315141316
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Costa Nova surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Costa Nova at:
surf-forecast.com

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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