Playa de Rio Sieira / As Furnas Surf Break

Lat Long: 42.63° N 9.05° W

Playa de Rio Sieira / As Furnas 48 hour detailed Surf Forecast

Issued: 7 pm 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Playa de Rio Sieira / As Furnas sea temperature is
16.6°C
1.8° 

Playa de Rio Sieira / As Furnas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Playa de Rio Sieira / As Furnas today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 4ft (1.2m), 12s period with NW swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 3.5ft (1.1m), 11s period with NW swell.
  • Evening surf: Evening surf (21 Sep, local time) - 3.5ft (1.1m), 11s period with NW swell.

The current surf forecast for Playa de Rio Sieira / As Furnas at 3AM is: 1.3m 11s primary swell from a Northwest direction and 0.1m 13s secondary swell from a Southwest direction, 0.3m 2s secondary swell from a Northeast direction (forecast issued at 07:00pm September 20). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (CEST) & DateWave HeightWave Period
Morning (21 Sep)4ft (1.2m)12s
Afternoon (21 Sep)3.5ft (1.1m)11s
Evening (21 Sep)3.5ft (1.1m)11s

Table - waves today at Playa de Rio Sieira / As Furnas. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 31°C on Sun night, min 21°C on Wed morning). Wind will be generally light.

Sun
20
Monday
21
Tuesday
22
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
1
2
2
2
2
0
1
1
1
1
1
1
2
1
0
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
NW
11
1.3
NW
11
1.3
NW
11
1.3
NW
11
1.3
NW
11
1.2
NW
12
1.2
NW
12
1.1
NW
11
1.2
NW
11
1.1
NW
11
1.1
NW
11
1.1
NW
12
1.1
NW
12
1
NW
12
1
NW
11
0.9
NW
11
0.9
NW
11
0.5
WNW
18
0.9
WNW
16
Wave Graph
Metric surfscale
Energy kJ
319
361
368
375
396
383
383
331
350
314
320
343
303
268
250
205
172
180
480
Wind (km/h)
10
NW
10
N
15
NE
15
ENE
15
ENE
10
ENE
5
ENE
10
W
10
NW
10
N
10
NE
10
NNE
10
NNE
10
NE
5
NE
10
WNW
10
NW
5
NNW
5
E
Wind State
on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-on
on
cross-on
cross
cross
cross
cross
glassy
on
on
glassy
cross-off
High Tide
00:57AM1.99m
1:24PM2.24m
2:02AM2.16m
2:17PM2.45m
Low Tide
6:39PM1.18m
6:59AM1.19m
7:52PM1.01m
8:01AM0.99m
8:37PM0.79m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:21
8:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:34
 mm
Temp °C
30
31
29
27
27
26
27
28
28
29
28
27
26
25
26
28
27
27
25
Feels °C
27
28
26
24
24
23
26
26
26
27
25
24
23
22
24
25
24
26
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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