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Surf Forecasts:

Playa de Rio Sieira / As Furnas surf break

Playa de Rio Sieira / As Furnas surfForecast / Galicia / Spain

information circle16 Day Weather and Surf, issued 6 pm Monday 16 Mar 2026 CET
Forecast update in hr  min  s Forecast update imminent
Playa de Rio Sieira / As Furnas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Playa de Rio Sieira / As Furnas sea temperature is
13.4° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Playa de Rio Sieira / As Furnas this week:

The surf forecast for Playa de Rio Sieira / As Furnas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Mar 17) at 1AM. The primary swell is predicted to be 2.5m and 16s period with a secondary swell of 0.9m and 20s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Playa de Rio Sieira / As Furnas in the next 16 days are 3.5m 16s and forecast to arrive on Wednesday (Mar 18) at 4PM. 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 5s period and expected on Wednesday (Mar 18) at 1AM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Tue 17th Mar)8ft (2.5m) 16s
Best Surf 1PM (Wed 18th Mar)10ft (3.0m) 15s
Most Powerful 4PM (Wed 18th Mar)11ft (3.5m) 16s

Table - best surf conditions forecast for Playa de Rio Sieira / As Furnas over the next 16 days.

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

Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Very mild (max 19°C on Thu morning, min 12°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Thu night. Very mild (max 17°C on Thu afternoon, min 12°C on Thu night). Wind will be generally light.

Mon
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
!
5
4
3
4
5
!
4
4
3
3
3
2
0
3
2
3
2
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
NW
2.5
WNW
2.2
NW
1.8
WNW
2.3
WNW
2.5
WNW
3.5
WNW
2.5
WNW
2.1
WNW
1.9
WNW
1.5
WNW
1.1
NW
0.9
NW
0.9
SSW
1.3
SSW
1.5
SW
1.5
SW
1.2
SW
0.8
WNW
0.9
NW
0.8
NW
Period(s) (?)17161413141516151413131312811101110131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6086359817991151186225125601307517461283772405236119382477524286186212167
Wind
(km/h)
10
W
10
ESE
10
ESE
10
SW
15
SE
10
ESE
10
ESE
15
ENE
15
E
15
SW
10
NNE
10
E
5
ESE
10
NNE
5
SE
5
NW
5
NE
10
N
5
NNE
15
N
20
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		offcross-
off		crossoffcross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		cross-
off		glasscross-
on		glassonglasscross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
2:49AM
2.94
3:12PM
2.84
3:24AM
3.15
3:46PM
3.02
3:58AM
3.30
4:20PM
3.16
4:34AM
3.37
4:55PM
3.22
5:11AM
3.35
5:32PM
3.20
5:51AM
3.22
6:12PM
3.10
6:35AM
3.00
Low Tide
/ height (m)
8:36PM
0.51
9:04AM
0.27
9:11PM
0.29
9:37AM
0.07
9:46PM
0.11
10:10AM
-0.07
10:21PM
-0.00
10:45AM
-0.12
10:58PM
-0.04
11:21AM
-0.07
11:38PM
0.01
12:00PM
0.08
12:20AM
0.15
12:41PM
0.30
Mon
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Sunrise--7:45--7:43--7:41--7:39--7:37--7:37--7:35
Sunset7:43--7:44--7:45--7:45--7:46--7:47--7:50--
clear
clear
clear
part cloud
light rain
light rain
part cloud
part cloud
cloud
cloud
light rain
part cloud
cloud
part cloud
cloud
cloud
cloud
rain showers
rain showers
part cloud
part cloud
Rain (mm)
----11----3------23--
Temp. °C161416151314181419171314161514131313121112
Feels °C (?)1312131310121611171412131615141212121186
  • 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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View detailed surf forecast for Playa de Rio Sieira / As Furnas at:
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Information about the Playa de Rio Sieira / As Furnas Surf forecast

The above surf forecast table for Playa de Rio Sieira / As Furnas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Playa de Rio Sieira / As Furnas can be found by selecting the local surf guide option on the grey menu. Our Playa de Rio Sieira / As Furnas 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 (Playa de Rio Sieira / As Furnas) 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 Playa de Rio Sieira / As Furnas 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.

Are you planning a holiday in Galicia? If you are looking for accommodation near Playa de Rio Sieira / As Furnas, camping, hotels and holiday cottages in Galicia, consider staying in Boiro which is 12 km (7 miles) away. Other places in and around Galicia where you can find information about places to rent, and car hire include Muros which is 16 km (10 miles) away, Villagarcia, Sanxenxo and Poio.

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